From 4546511b64948491e151405d10ede0d2ae6b5be5 Mon Sep 17 00:00:00 2001
From: hsonne <hauke.sonnenberg@kompetenz-wasser.de>
Date: Sat, 8 Jul 2023 16:06:42 +0200
Subject: [PATCH 1/9] Use ggplot2::aes() instead of aes_string()

to get rid of "deprecated" warning in vignette
---
 vignettes/tutorial.Rmd | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/vignettes/tutorial.Rmd b/vignettes/tutorial.Rmd
index e946b7be..0e53740e 100644
--- a/vignettes/tutorial.Rmd
+++ b/vignettes/tutorial.Rmd
@@ -53,9 +53,9 @@ also_available <- function(what, format, filename) {
 }
 
 ggplot2_date_value <- function(data, col) {
-  ggplot2::ggplot(data, mapping = ggplot2::aes_string(
-    x = "Datum", 
-    y = "Messwert", 
+  ggplot2::ggplot(data, mapping = ggplot2::aes(
+    x = Datum, 
+    y = Messwert, 
     col = col
   ))
 }
@@ -167,10 +167,10 @@ title_text <- sprintf(
 g1 <- gwl_classified_only %>% 
   dplyr::count(Klassifikation, Grundwasserspannung) %>% 
   dplyr::mutate(percental_share = kwb.utils::percentage(n, nrow(gwl))) %>% 
-  ggplot2::ggplot(ggplot2::aes_string(
-    x = "Klassifikation",
-    y = "percental_share",
-    fill = "Grundwasserspannung"
+  ggplot2::ggplot(ggplot2::aes(
+    x = Klassifikation,
+    y = percental_share,
+    fill = Grundwasserspannung
   )) +
   ggplot2::geom_bar(stat = "identity") + 
   ggplot2::labs(

From 1661c5374a09e251a5cf4a3f65c78b386a54910f Mon Sep 17 00:00:00 2001
From: hsonne <hauke.sonnenberg@kompetenz-wasser.de>
Date: Sat, 8 Jul 2023 17:24:23 +0200
Subject: [PATCH 2/9] Use dplyr::all_of()

to get rid of "deprecated" warning in vignette
---
 vignettes/tutorial.Rmd | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vignettes/tutorial.Rmd b/vignettes/tutorial.Rmd
index 0e53740e..112d1600 100644
--- a/vignettes/tutorial.Rmd
+++ b/vignettes/tutorial.Rmd
@@ -217,7 +217,7 @@ gwl_classified_only_with_coords <- gwl_classified_only %>%
   ) %>% 
   dplyr::left_join(
     stations_gwl_master %>%
-      dplyr::select("Nummer", rechtswert, hochwert) %>% 
+      dplyr::select(dplyr::all_of(c("Nummer", rechtswert, hochwert))) %>% 
       dplyr::rename(Messstellennummer = "Nummer"),
     by = "Messstellennummer"
   ) %>% 

From a262fd64082056254396d5c107ab6b9b8ef0d2fb Mon Sep 17 00:00:00 2001
From: hsonne <hauke.sonnenberg@kompetenz-wasser.de>
Date: Sat, 8 Jul 2023 17:41:01 +0200
Subject: [PATCH 3/9] Use dplyr::all_of()

to get rid of "deprecated" warning in vignette
---
 vignettes/groundwater.Rmd | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/vignettes/groundwater.Rmd b/vignettes/groundwater.Rmd
index d2c26378..859700ef 100644
--- a/vignettes/groundwater.Rmd
+++ b/vignettes/groundwater.Rmd
@@ -176,12 +176,12 @@ str(gw_data)
 # Helper functions to be reused in different data summaries
 select_main_columns <- function(data) {
   data %>%
-    dplyr::select(
-      .data$Messstellennummer,
-      .data$Parameter,
-      .data$Datum,
-      .data$Messwert
-    )
+    dplyr::select(dplyr::all_of(c(
+      "Messstellennummer",
+      "Parameter",
+      "Datum",
+      "Messwert"
+    )))
 }
 
 summarise_min_max_n_arrange <- function(data) {

From c922c17759fb01f0666434cfd99e6bdd5916ab54 Mon Sep 17 00:00:00 2001
From: hsonne <hauke.sonnenberg@kompetenz-wasser.de>
Date: Sat, 8 Jul 2023 17:52:22 +0200
Subject: [PATCH 4/9] Set argument ".groups" to get rid of warning

---
 vignettes/groundwater.Rmd | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/vignettes/groundwater.Rmd b/vignettes/groundwater.Rmd
index 859700ef..134aacf4 100644
--- a/vignettes/groundwater.Rmd
+++ b/vignettes/groundwater.Rmd
@@ -189,7 +189,8 @@ summarise_min_max_n_arrange <- function(data) {
     dplyr::summarise(
       date_min = min(.data$Datum),
       date_max = max(.data$Datum),
-      n = dplyr::n()
+      n = dplyr::n(), 
+      .groups = "drop"
     ) %>%
     dplyr::arrange(dplyr::desc(.data$n))
 }

From 822d460874e048559c9404dcd26819565beb00de Mon Sep 17 00:00:00 2001
From: hsonne <hauke.sonnenberg@kompetenz-wasser.de>
Date: Tue, 15 Aug 2023 12:11:42 +0200
Subject: [PATCH 5/9] Fix typo

---
 R/list_data_to_csv_or_zip.R | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/R/list_data_to_csv_or_zip.R b/R/list_data_to_csv_or_zip.R
index 07e68279..d9455ae6 100644
--- a/R/list_data_to_csv_or_zip.R
+++ b/R/list_data_to_csv_or_zip.R
@@ -24,7 +24,7 @@ list_data_to_csv_or_zip <- function(data_list, file_prefix, to_zip)
     filename <- ifelse(to_zip, filename_zip, filename_csv)
 
     kwb.utils::catAndRun(
-      messageText = sprintf("Writting '%s'", filename),
+      messageText = sprintf("Writing '%s'", filename),
       expr = {
 
         file <- if (to_zip) {

From 9d2064708a4da41cbae972f63afd103f08abc35a Mon Sep 17 00:00:00 2001
From: hsonne <hauke.sonnenberg@kompetenz-wasser.de>
Date: Sat, 23 Sep 2023 22:54:12 +0200
Subject: [PATCH 6/9] Consider renaming of "Pegelnullpunkt_m"

to "Pegelnullpunkt_m_NHN"
---
 vignettes/surface-water.Rmd | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/vignettes/surface-water.Rmd b/vignettes/surface-water.Rmd
index 015837fa..7d9ed22a 100644
--- a/vignettes/surface-water.Rmd
+++ b/vignettes/surface-water.Rmd
@@ -5,8 +5,10 @@ date: "`r Sys.time()`"
 output: rmarkdown::html_vignette
 vignette: >
   %\VignetteIndexEntry{Surface Water}
-  %\VignetteEngine{knitr::rmarkdown}
   %\VignetteEncoding{UTF-8}
+  %\VignetteEngine{knitr::rmarkdown}
+editor_options: 
+  chunk_output_type: console
 ---
 
 ```{r, include = FALSE}
@@ -88,20 +90,22 @@ swl_master <- wasserportal::get_wasserportal_masters_data(
     dplyr::pull(.data$stammdaten_link)
 )
 
+column_level_zero <- "Pegelnullpunkt_m_NHN"
+  
 swl_data <- sw_data_daily_list$surface_water.water_level %>% 
   dplyr::select(where(~!all(is.na(.x)))) %>%
   dplyr::left_join(
-    swl_master[, c("Nummer", "Pegelnullpunkt_m")],
-    by = c("Messstellennummer" = "Nummer")
+    kwb.utils::selectColumns(swl_master, c("Nummer", column_level_zero)),
+    by = c(Messstellennummer = "Nummer")
   ) %>%
   dplyr::mutate(
-    Tagesmittelwert_Pegelstand_mNN = as.numeric(.data$Pegelnullpunkt_m) + 
+    Tagesmittelwert_Pegelstand_mNN = as.numeric(.data[[column_level_zero]]) + 
       .data$Tagesmittelwert / 100
   ) %>%
   ### remove -777 for messstellennummer 5867000 (few values in 2000) resulted by
   ### step above
-  dplyr::filter(.data$Tagesmittelwert_Pegelstand_mNN != -777) %>%
-  dplyr::select(- .data$Pegelnullpunkt_m)
+  dplyr::filter(.data[["Tagesmittelwert_Pegelstand_mNN"]] != -777) %>%
+  kwb.utils::removeColumns(column_level_zero)
 
 str(swl_data)
 ```

From 0da9968a5d90eb1accdd667b29cba471f8eb3159 Mon Sep 17 00:00:00 2001
From: hsonne <hauke.sonnenberg@kompetenz-wasser.de>
Date: Sat, 23 Sep 2023 23:15:31 +0200
Subject: [PATCH 7/9] Create tests with kwb.test::create_test_files()

---
 DESCRIPTION                                      |  4 +++-
 tests/testthat.R                                 | 12 ++++++++++++
 .../test-function-add_wasserportal_metadata.R    | 16 ++++++++++++++++
 tests/testthat/test-function-as_date_de.R        | 16 ++++++++++++++++
 tests/testthat/test-function-assert_date.R       | 16 ++++++++++++++++
 tests/testthat/test-function-base_url_download.R | 13 +++++++++++++
 .../test-function-clean_timestamp_columns.R      | 16 ++++++++++++++++
 tests/testthat/test-function-columns_to_labels.R | 16 ++++++++++++++++
 tests/testthat/test-function-date_string_de.R    | 16 ++++++++++++++++
 tests/testthat/test-function-extract_hrefs.R     | 16 ++++++++++++++++
 .../test-function-get_daily_surfacewater_data.R  | 16 ++++++++++++++++
 .../test-function-get_groundwater_data.R         | 16 ++++++++++++++++
 .../test-function-get_groundwater_options.R      | 13 +++++++++++++
 .../test-function-get_non_external_station_ids.R | 16 ++++++++++++++++
 .../test-function-get_overview_options.R         | 13 +++++++++++++
 .../test-function-get_station_variables.R        | 16 ++++++++++++++++
 tests/testthat/test-function-get_stations.R      | 13 +++++++++++++
 .../test-function-get_surfacewater_variables.R   | 13 +++++++++++++
 ..._url_and_body_for_groundwater_data_download.R | 16 ++++++++++++++++
 .../test-function-get_wasserportal_master_data.R | 16 ++++++++++++++++
 ...test-function-get_wasserportal_masters_data.R | 16 ++++++++++++++++
 .../test-function-get_wasserportal_stations.R    | 13 +++++++++++++
 ...st-function-get_wasserportal_stations_table.R | 13 +++++++++++++
 .../test-function-get_wasserportal_text.R        | 16 ++++++++++++++++
 .../test-function-get_wasserportal_url.R         | 16 ++++++++++++++++
 .../test-function-get_wasserportal_variables.R   | 13 +++++++++++++
 tests/testthat/test-function-is_external_link.R  | 16 ++++++++++++++++
 .../test-function-list_data_to_csv_or_zip.R      | 16 ++++++++++++++++
 .../test-function-list_masters_data_to_csv.R     | 16 ++++++++++++++++
 .../test-function-list_timeseries_data_to_zip.R  | 16 ++++++++++++++++
 .../test-function-merge_raw_results_daily.R      | 16 ++++++++++++++++
 .../test-function-merge_raw_results_monthly.R    | 16 ++++++++++++++++
 .../test-function-merge_raw_results_single.R     | 16 ++++++++++++++++
 .../testthat/test-function-print_invalid_hrefs.R | 16 ++++++++++++++++
 tests/testthat/test-function-read.R              | 13 +++++++++++++
 tests/testthat/test-function-readPackageFile.R   | 16 ++++++++++++++++
 tests/testthat/test-function-read_wasserportal.R | 16 ++++++++++++++++
 .../test-function-read_wasserportal_raw.R        | 16 ++++++++++++++++
 .../test-function-read_wasserportal_raw_gw.R     | 13 +++++++++++++
 .../test-function-remove_remaining_duplicates.R  | 16 ++++++++++++++++
 .../test-function-remove_timestep_outliers.R     | 16 ++++++++++++++++
 ...est-function-repair_wasserportal_timestamps.R | 16 ++++++++++++++++
 ...est-function-stop_on_external_data_provider.R | 16 ++++++++++++++++
 .../testthat/test-function-sw_data_list_to_df.R  | 16 ++++++++++++++++
 tests/testthat/test-function-to_base_filename.R  | 16 ++++++++++++++++
 .../test-function-warning_not_implemented.R      | 16 ++++++++++++++++
 .../test-function-wasserportal_base_url.R        | 13 +++++++++++++
 tests/testthat/test-function-wp_data_to_list.R   | 16 ++++++++++++++++
 .../test-function-wp_masters_data_to_list.R      | 16 ++++++++++++++++
 .../test-function-wp_timeseries_data_to_list.R   | 16 ++++++++++++++++
 50 files changed, 750 insertions(+), 1 deletion(-)
 create mode 100644 tests/testthat.R
 create mode 100644 tests/testthat/test-function-add_wasserportal_metadata.R
 create mode 100644 tests/testthat/test-function-as_date_de.R
 create mode 100644 tests/testthat/test-function-assert_date.R
 create mode 100644 tests/testthat/test-function-base_url_download.R
 create mode 100644 tests/testthat/test-function-clean_timestamp_columns.R
 create mode 100644 tests/testthat/test-function-columns_to_labels.R
 create mode 100644 tests/testthat/test-function-date_string_de.R
 create mode 100644 tests/testthat/test-function-extract_hrefs.R
 create mode 100644 tests/testthat/test-function-get_daily_surfacewater_data.R
 create mode 100644 tests/testthat/test-function-get_groundwater_data.R
 create mode 100644 tests/testthat/test-function-get_groundwater_options.R
 create mode 100644 tests/testthat/test-function-get_non_external_station_ids.R
 create mode 100644 tests/testthat/test-function-get_overview_options.R
 create mode 100644 tests/testthat/test-function-get_station_variables.R
 create mode 100644 tests/testthat/test-function-get_stations.R
 create mode 100644 tests/testthat/test-function-get_surfacewater_variables.R
 create mode 100644 tests/testthat/test-function-get_url_and_body_for_groundwater_data_download.R
 create mode 100644 tests/testthat/test-function-get_wasserportal_master_data.R
 create mode 100644 tests/testthat/test-function-get_wasserportal_masters_data.R
 create mode 100644 tests/testthat/test-function-get_wasserportal_stations.R
 create mode 100644 tests/testthat/test-function-get_wasserportal_stations_table.R
 create mode 100644 tests/testthat/test-function-get_wasserportal_text.R
 create mode 100644 tests/testthat/test-function-get_wasserportal_url.R
 create mode 100644 tests/testthat/test-function-get_wasserportal_variables.R
 create mode 100644 tests/testthat/test-function-is_external_link.R
 create mode 100644 tests/testthat/test-function-list_data_to_csv_or_zip.R
 create mode 100644 tests/testthat/test-function-list_masters_data_to_csv.R
 create mode 100644 tests/testthat/test-function-list_timeseries_data_to_zip.R
 create mode 100644 tests/testthat/test-function-merge_raw_results_daily.R
 create mode 100644 tests/testthat/test-function-merge_raw_results_monthly.R
 create mode 100644 tests/testthat/test-function-merge_raw_results_single.R
 create mode 100644 tests/testthat/test-function-print_invalid_hrefs.R
 create mode 100644 tests/testthat/test-function-read.R
 create mode 100644 tests/testthat/test-function-readPackageFile.R
 create mode 100644 tests/testthat/test-function-read_wasserportal.R
 create mode 100644 tests/testthat/test-function-read_wasserportal_raw.R
 create mode 100644 tests/testthat/test-function-read_wasserportal_raw_gw.R
 create mode 100644 tests/testthat/test-function-remove_remaining_duplicates.R
 create mode 100644 tests/testthat/test-function-remove_timestep_outliers.R
 create mode 100644 tests/testthat/test-function-repair_wasserportal_timestamps.R
 create mode 100644 tests/testthat/test-function-stop_on_external_data_provider.R
 create mode 100644 tests/testthat/test-function-sw_data_list_to_df.R
 create mode 100644 tests/testthat/test-function-to_base_filename.R
 create mode 100644 tests/testthat/test-function-warning_not_implemented.R
 create mode 100644 tests/testthat/test-function-wasserportal_base_url.R
 create mode 100644 tests/testthat/test-function-wp_data_to_list.R
 create mode 100644 tests/testthat/test-function-wp_masters_data_to_list.R
 create mode 100644 tests/testthat/test-function-wp_timeseries_data_to_list.R

diff --git a/DESCRIPTION b/DESCRIPTION
index 41cc9f0d..18acf69a 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -61,7 +61,8 @@ Suggests:
     plotly,
     rmarkdown,
     sf,
-    tidyselect
+    tidyselect,
+    testthat (>= 3.0.0)
 Remotes: 
     github::kwb-r/kwb.datetime,
     github::kwb-r/kwb.pkgbuild,
@@ -71,3 +72,4 @@ LazyData: true
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.2.1
 VignetteBuilder: knitr
+Config/testthat/edition: 3
diff --git a/tests/testthat.R b/tests/testthat.R
new file mode 100644
index 00000000..5b97ae68
--- /dev/null
+++ b/tests/testthat.R
@@ -0,0 +1,12 @@
+# This file is part of the standard setup for testthat.
+# It is recommended that you do not modify it.
+#
+# Where should you do additional test configuration?
+# Learn more about the roles of various files in:
+# * https://r-pkgs.org/testing-design.html#sec-tests-files-overview
+# * https://testthat.r-lib.org/articles/special-files.html
+
+library(testthat)
+library(wasserportal)
+
+test_check("wasserportal")
diff --git a/tests/testthat/test-function-add_wasserportal_metadata.R b/tests/testthat/test-function-add_wasserportal_metadata.R
new file mode 100644
index 00000000..e7528965
--- /dev/null
+++ b/tests/testthat/test-function-add_wasserportal_metadata.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:33.492441.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("add_wasserportal_metadata() works", {
+
+  expect_error(
+    wasserportal:::add_wasserportal_metadata()
+    # argument "x" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-as_date_de.R b/tests/testthat/test-function-as_date_de.R
new file mode 100644
index 00000000..a79515f6
--- /dev/null
+++ b/tests/testthat/test-function-as_date_de.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:44.744923.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("as_date_de() works", {
+
+  expect_error(
+    wasserportal:::as_date_de()
+    # argument "x" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-assert_date.R b/tests/testthat/test-function-assert_date.R
new file mode 100644
index 00000000..36548b3f
--- /dev/null
+++ b/tests/testthat/test-function-assert_date.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:44.744923.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("assert_date() works", {
+
+  expect_error(
+    wasserportal:::assert_date()
+    # argument "x" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-base_url_download.R b/tests/testthat/test-function-base_url_download.R
new file mode 100644
index 00000000..7d7e457f
--- /dev/null
+++ b/tests/testthat/test-function-base_url_download.R
@@ -0,0 +1,13 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:46.168353.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("base_url_download() works", {
+
+  wasserportal:::base_url_download()
+
+})
+
diff --git a/tests/testthat/test-function-clean_timestamp_columns.R b/tests/testthat/test-function-clean_timestamp_columns.R
new file mode 100644
index 00000000..8fc2e3fc
--- /dev/null
+++ b/tests/testthat/test-function-clean_timestamp_columns.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:33.492441.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("clean_timestamp_columns() works", {
+
+  expect_error(
+    wasserportal:::clean_timestamp_columns()
+    # argument "data" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-columns_to_labels.R b/tests/testthat/test-function-columns_to_labels.R
new file mode 100644
index 00000000..508f44ac
--- /dev/null
+++ b/tests/testthat/test-function-columns_to_labels.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:44.744923.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("columns_to_labels() works", {
+
+  expect_error(
+    wasserportal:::columns_to_labels()
+    # argument "columns" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-date_string_de.R b/tests/testthat/test-function-date_string_de.R
new file mode 100644
index 00000000..0df950c4
--- /dev/null
+++ b/tests/testthat/test-function-date_string_de.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:44.744923.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("date_string_de() works", {
+
+  expect_error(
+    wasserportal:::date_string_de()
+    # argument "x" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-extract_hrefs.R b/tests/testthat/test-function-extract_hrefs.R
new file mode 100644
index 00000000..e39b2c20
--- /dev/null
+++ b/tests/testthat/test-function-extract_hrefs.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:16.145095.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("extract_hrefs() works", {
+
+  expect_error(
+    wasserportal:::extract_hrefs()
+    # argument "x" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-get_daily_surfacewater_data.R b/tests/testthat/test-function-get_daily_surfacewater_data.R
new file mode 100644
index 00000000..96675e60
--- /dev/null
+++ b/tests/testthat/test-function-get_daily_surfacewater_data.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:09:31.879282.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_daily_surfacewater_data() works", {
+
+  expect_error(
+    wasserportal:::get_daily_surfacewater_data()
+    # argument "stations" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-get_groundwater_data.R b/tests/testthat/test-function-get_groundwater_data.R
new file mode 100644
index 00000000..50ac712b
--- /dev/null
+++ b/tests/testthat/test-function-get_groundwater_data.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:09:38.376262.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_groundwater_data() works", {
+
+  expect_error(
+    wasserportal:::get_groundwater_data()
+    # argument "stations" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-get_groundwater_options.R b/tests/testthat/test-function-get_groundwater_options.R
new file mode 100644
index 00000000..55622b80
--- /dev/null
+++ b/tests/testthat/test-function-get_groundwater_options.R
@@ -0,0 +1,13 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:09:38.376262.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_groundwater_options() works", {
+
+  wasserportal:::get_groundwater_options()
+
+})
+
diff --git a/tests/testthat/test-function-get_non_external_station_ids.R b/tests/testthat/test-function-get_non_external_station_ids.R
new file mode 100644
index 00000000..e7abcac0
--- /dev/null
+++ b/tests/testthat/test-function-get_non_external_station_ids.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:09:31.879282.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_non_external_station_ids() works", {
+
+  expect_error(
+    wasserportal:::get_non_external_station_ids()
+    # argument "station_data" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-get_overview_options.R b/tests/testthat/test-function-get_overview_options.R
new file mode 100644
index 00000000..15ea723f
--- /dev/null
+++ b/tests/testthat/test-function-get_overview_options.R
@@ -0,0 +1,13 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:09:38.527944.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_overview_options() works", {
+
+  wasserportal:::get_overview_options()
+
+})
+
diff --git a/tests/testthat/test-function-get_station_variables.R b/tests/testthat/test-function-get_station_variables.R
new file mode 100644
index 00000000..5a165915
--- /dev/null
+++ b/tests/testthat/test-function-get_station_variables.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:09:41.860028.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_station_variables() works", {
+
+  expect_error(
+    wasserportal:::get_station_variables()
+    # argument "station_df" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-get_stations.R b/tests/testthat/test-function-get_stations.R
new file mode 100644
index 00000000..38cca306
--- /dev/null
+++ b/tests/testthat/test-function-get_stations.R
@@ -0,0 +1,13 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:01.710311.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_stations() works", {
+
+  wasserportal:::get_stations()
+
+})
+
diff --git a/tests/testthat/test-function-get_surfacewater_variables.R b/tests/testthat/test-function-get_surfacewater_variables.R
new file mode 100644
index 00000000..bb9c7492
--- /dev/null
+++ b/tests/testthat/test-function-get_surfacewater_variables.R
@@ -0,0 +1,13 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:09:31.879282.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_surfacewater_variables() works", {
+
+  wasserportal:::get_surfacewater_variables()
+
+})
+
diff --git a/tests/testthat/test-function-get_url_and_body_for_groundwater_data_download.R b/tests/testthat/test-function-get_url_and_body_for_groundwater_data_download.R
new file mode 100644
index 00000000..566ef5a1
--- /dev/null
+++ b/tests/testthat/test-function-get_url_and_body_for_groundwater_data_download.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:43.430779.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_url_and_body_for_groundwater_data_download() works", {
+
+  expect_error(
+    wasserportal:::get_url_and_body_for_groundwater_data_download()
+    # argument "stype" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-get_wasserportal_master_data.R b/tests/testthat/test-function-get_wasserportal_master_data.R
new file mode 100644
index 00000000..a0f46d3f
--- /dev/null
+++ b/tests/testthat/test-function-get_wasserportal_master_data.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:07.960625.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_wasserportal_master_data() works", {
+
+  expect_error(
+    wasserportal:::get_wasserportal_master_data()
+    # argument "master_url" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-get_wasserportal_masters_data.R b/tests/testthat/test-function-get_wasserportal_masters_data.R
new file mode 100644
index 00000000..d8e292f5
--- /dev/null
+++ b/tests/testthat/test-function-get_wasserportal_masters_data.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:07.960625.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_wasserportal_masters_data() works", {
+
+  expect_error(
+    wasserportal:::get_wasserportal_masters_data()
+    # argument "master_urls" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-get_wasserportal_stations.R b/tests/testthat/test-function-get_wasserportal_stations.R
new file mode 100644
index 00000000..aed472d3
--- /dev/null
+++ b/tests/testthat/test-function-get_wasserportal_stations.R
@@ -0,0 +1,13 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:08.05047.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_wasserportal_stations() works", {
+
+  wasserportal:::get_wasserportal_stations()
+
+})
+
diff --git a/tests/testthat/test-function-get_wasserportal_stations_table.R b/tests/testthat/test-function-get_wasserportal_stations_table.R
new file mode 100644
index 00000000..3bdfca2f
--- /dev/null
+++ b/tests/testthat/test-function-get_wasserportal_stations_table.R
@@ -0,0 +1,13 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:16.145095.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_wasserportal_stations_table() works", {
+
+  wasserportal:::get_wasserportal_stations_table()
+
+})
+
diff --git a/tests/testthat/test-function-get_wasserportal_text.R b/tests/testthat/test-function-get_wasserportal_text.R
new file mode 100644
index 00000000..75d89b56
--- /dev/null
+++ b/tests/testthat/test-function-get_wasserportal_text.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:33.492441.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_wasserportal_text() works", {
+
+  expect_error(
+    wasserportal:::get_wasserportal_text()
+    # argument "variable_ids" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-get_wasserportal_url.R b/tests/testthat/test-function-get_wasserportal_url.R
new file mode 100644
index 00000000..32c68346
--- /dev/null
+++ b/tests/testthat/test-function-get_wasserportal_url.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:33.492441.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_wasserportal_url() works", {
+
+  expect_error(
+    wasserportal:::get_wasserportal_url()
+    # argument "station" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-get_wasserportal_variables.R b/tests/testthat/test-function-get_wasserportal_variables.R
new file mode 100644
index 00000000..9a095519
--- /dev/null
+++ b/tests/testthat/test-function-get_wasserportal_variables.R
@@ -0,0 +1,13 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:16.872839.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("get_wasserportal_variables() works", {
+
+  wasserportal:::get_wasserportal_variables()
+
+})
+
diff --git a/tests/testthat/test-function-is_external_link.R b/tests/testthat/test-function-is_external_link.R
new file mode 100644
index 00000000..75be19d4
--- /dev/null
+++ b/tests/testthat/test-function-is_external_link.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:17.601624.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("is_external_link() works", {
+
+  expect_error(
+    wasserportal:::is_external_link()
+    # argument "url" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-list_data_to_csv_or_zip.R b/tests/testthat/test-function-list_data_to_csv_or_zip.R
new file mode 100644
index 00000000..dcc75bd0
--- /dev/null
+++ b/tests/testthat/test-function-list_data_to_csv_or_zip.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:18.335281.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("list_data_to_csv_or_zip() works", {
+
+  expect_error(
+    wasserportal:::list_data_to_csv_or_zip()
+    # argument "data_list" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-list_masters_data_to_csv.R b/tests/testthat/test-function-list_masters_data_to_csv.R
new file mode 100644
index 00000000..687fa9ef
--- /dev/null
+++ b/tests/testthat/test-function-list_masters_data_to_csv.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:18.525365.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("list_masters_data_to_csv() works", {
+
+  expect_error(
+    wasserportal:::list_masters_data_to_csv()
+    # argument "masters_data_list" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-list_timeseries_data_to_zip.R b/tests/testthat/test-function-list_timeseries_data_to_zip.R
new file mode 100644
index 00000000..6c87918f
--- /dev/null
+++ b/tests/testthat/test-function-list_timeseries_data_to_zip.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:19.218318.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("list_timeseries_data_to_zip() works", {
+
+  expect_error(
+    wasserportal:::list_timeseries_data_to_zip()
+    # argument "timeseries_data_list" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-merge_raw_results_daily.R b/tests/testthat/test-function-merge_raw_results_daily.R
new file mode 100644
index 00000000..c06709ee
--- /dev/null
+++ b/tests/testthat/test-function-merge_raw_results_daily.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:31.576169.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("merge_raw_results_daily() works", {
+
+  expect_error(
+    wasserportal:::merge_raw_results_daily()
+    # argument "dfs" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-merge_raw_results_monthly.R b/tests/testthat/test-function-merge_raw_results_monthly.R
new file mode 100644
index 00000000..bf99578d
--- /dev/null
+++ b/tests/testthat/test-function-merge_raw_results_monthly.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:31.576169.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("merge_raw_results_monthly() works", {
+
+  expect_error(
+    wasserportal:::merge_raw_results_monthly()
+    # argument "dfs" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-merge_raw_results_single.R b/tests/testthat/test-function-merge_raw_results_single.R
new file mode 100644
index 00000000..974fe34d
--- /dev/null
+++ b/tests/testthat/test-function-merge_raw_results_single.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:31.576169.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("merge_raw_results_single() works", {
+
+  expect_error(
+    wasserportal:::merge_raw_results_single()
+    # argument "dfs" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-print_invalid_hrefs.R b/tests/testthat/test-function-print_invalid_hrefs.R
new file mode 100644
index 00000000..871918c6
--- /dev/null
+++ b/tests/testthat/test-function-print_invalid_hrefs.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:16.145095.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("print_invalid_hrefs() works", {
+
+  expect_error(
+    wasserportal:::print_invalid_hrefs()
+    # argument "hrefs" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-read.R b/tests/testthat/test-function-read.R
new file mode 100644
index 00000000..c1ed07ba
--- /dev/null
+++ b/tests/testthat/test-function-read.R
@@ -0,0 +1,13 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:44.744923.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("read() works", {
+
+  wasserportal:::read()
+
+})
+
diff --git a/tests/testthat/test-function-readPackageFile.R b/tests/testthat/test-function-readPackageFile.R
new file mode 100644
index 00000000..04019e87
--- /dev/null
+++ b/tests/testthat/test-function-readPackageFile.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:44.744923.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("readPackageFile() works", {
+
+  expect_error(
+    wasserportal:::readPackageFile()
+    # argument "file" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-read_wasserportal.R b/tests/testthat/test-function-read_wasserportal.R
new file mode 100644
index 00000000..746ccbe5
--- /dev/null
+++ b/tests/testthat/test-function-read_wasserportal.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:31.576169.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("read_wasserportal() works", {
+
+  expect_error(
+    wasserportal:::read_wasserportal()
+    # argument "stations_crosstable" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-read_wasserportal_raw.R b/tests/testthat/test-function-read_wasserportal_raw.R
new file mode 100644
index 00000000..878d22f4
--- /dev/null
+++ b/tests/testthat/test-function-read_wasserportal_raw.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:33.492441.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("read_wasserportal_raw() works", {
+
+  expect_error(
+    wasserportal:::read_wasserportal_raw()
+    # argument "station" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-read_wasserportal_raw_gw.R b/tests/testthat/test-function-read_wasserportal_raw_gw.R
new file mode 100644
index 00000000..f330722d
--- /dev/null
+++ b/tests/testthat/test-function-read_wasserportal_raw_gw.R
@@ -0,0 +1,13 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:43.430779.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("read_wasserportal_raw_gw() works", {
+
+  wasserportal:::read_wasserportal_raw_gw()
+
+})
+
diff --git a/tests/testthat/test-function-remove_remaining_duplicates.R b/tests/testthat/test-function-remove_remaining_duplicates.R
new file mode 100644
index 00000000..b61c75c8
--- /dev/null
+++ b/tests/testthat/test-function-remove_remaining_duplicates.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:33.492441.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("remove_remaining_duplicates() works", {
+
+  expect_error(
+    wasserportal:::remove_remaining_duplicates()
+    # argument "data" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-remove_timestep_outliers.R b/tests/testthat/test-function-remove_timestep_outliers.R
new file mode 100644
index 00000000..eb91fc4f
--- /dev/null
+++ b/tests/testthat/test-function-remove_timestep_outliers.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:33.492441.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("remove_timestep_outliers() works", {
+
+  expect_error(
+    wasserportal:::remove_timestep_outliers()
+    # argument "timestamps" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-repair_wasserportal_timestamps.R b/tests/testthat/test-function-repair_wasserportal_timestamps.R
new file mode 100644
index 00000000..55e75acc
--- /dev/null
+++ b/tests/testthat/test-function-repair_wasserportal_timestamps.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:33.492441.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("repair_wasserportal_timestamps() works", {
+
+  expect_error(
+    wasserportal:::repair_wasserportal_timestamps()
+    # argument "timestamps" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-stop_on_external_data_provider.R b/tests/testthat/test-function-stop_on_external_data_provider.R
new file mode 100644
index 00000000..c8805e65
--- /dev/null
+++ b/tests/testthat/test-function-stop_on_external_data_provider.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:07.960625.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("stop_on_external_data_provider() works", {
+
+  expect_error(
+    wasserportal:::stop_on_external_data_provider()
+    # argument "url" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-sw_data_list_to_df.R b/tests/testthat/test-function-sw_data_list_to_df.R
new file mode 100644
index 00000000..75bcc540
--- /dev/null
+++ b/tests/testthat/test-function-sw_data_list_to_df.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:09:31.879282.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("sw_data_list_to_df() works", {
+
+  expect_error(
+    wasserportal:::sw_data_list_to_df()
+    # argument "sw_data_list" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-to_base_filename.R b/tests/testthat/test-function-to_base_filename.R
new file mode 100644
index 00000000..9af65de9
--- /dev/null
+++ b/tests/testthat/test-function-to_base_filename.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:17.601624.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("to_base_filename() works", {
+
+  expect_error(
+    wasserportal:::to_base_filename()
+    # argument "x" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-warning_not_implemented.R b/tests/testthat/test-function-warning_not_implemented.R
new file mode 100644
index 00000000..7e174d33
--- /dev/null
+++ b/tests/testthat/test-function-warning_not_implemented.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:31.576169.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("warning_not_implemented() works", {
+
+  expect_error(
+    wasserportal:::warning_not_implemented()
+    # argument "x" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-wasserportal_base_url.R b/tests/testthat/test-function-wasserportal_base_url.R
new file mode 100644
index 00000000..8ede8100
--- /dev/null
+++ b/tests/testthat/test-function-wasserportal_base_url.R
@@ -0,0 +1,13 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:17.601624.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("wasserportal_base_url() works", {
+
+  wasserportal:::wasserportal_base_url()
+
+})
+
diff --git a/tests/testthat/test-function-wp_data_to_list.R b/tests/testthat/test-function-wp_data_to_list.R
new file mode 100644
index 00000000..240c5425
--- /dev/null
+++ b/tests/testthat/test-function-wp_data_to_list.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:46.168353.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("wp_data_to_list() works", {
+
+  expect_error(
+    wasserportal:::wp_data_to_list()
+    # argument "target_dir" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-wp_masters_data_to_list.R b/tests/testthat/test-function-wp_masters_data_to_list.R
new file mode 100644
index 00000000..03df544a
--- /dev/null
+++ b/tests/testthat/test-function-wp_masters_data_to_list.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:57.965598.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("wp_masters_data_to_list() works", {
+
+  expect_error(
+    wasserportal:::wp_masters_data_to_list()
+    # argument "overview_list_names" is missing, with no default
+  )
+
+})
+
diff --git a/tests/testthat/test-function-wp_timeseries_data_to_list.R b/tests/testthat/test-function-wp_timeseries_data_to_list.R
new file mode 100644
index 00000000..3d014858
--- /dev/null
+++ b/tests/testthat/test-function-wp_timeseries_data_to_list.R
@@ -0,0 +1,16 @@
+#
+# This test file has been generated by kwb.test::create_test_files()
+# launched by user hsonne on 2023-09-23 23:10:58.111249.
+# Your are strongly encouraged to modify the dummy functions
+# so that real cases are tested. You should then delete this comment.
+#
+
+test_that("wp_timeseries_data_to_list() works", {
+
+  expect_error(
+    wasserportal:::wp_timeseries_data_to_list()
+    # argument "overview_list_names" is missing, with no default
+  )
+
+})
+

From 079a45329b653b4b0a6f3c9d07cead007127c99b Mon Sep 17 00:00:00 2001
From: hsonne <hauke.sonnenberg@kompetenz-wasser.de>
Date: Sun, 24 Sep 2023 00:18:07 +0200
Subject: [PATCH 8/9] Use kwb.utils::select(Elements|Columns)()

---
 R/get_groundwater_data.R                      |  6 ++++-
 .../test-function-get_groundwater_data.R      | 25 ++++++++++++++++---
 2 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/R/get_groundwater_data.R b/R/get_groundwater_data.R
index 146d1370..474d6d0e 100644
--- a/R/get_groundwater_data.R
+++ b/R/get_groundwater_data.R
@@ -35,8 +35,12 @@ get_groundwater_data <- function(
           "Importing '%s' data (%d/%d)",
           option_name, i, length(groundwater_options)
         ),
+        dbg = debug,
         expr = {
-          ids <- stations$overview_list[[option_name]]$Messstellennummer
+          ids <- stations %>%
+            kwb.utils::selectElements("overview_list") %>%
+            kwb.utils::selectElements(option_name) %>%
+            kwb.utils::selectColumns("Messstellennummer")
           lapply(
             X = ids,
             FUN = function(id) {
diff --git a/tests/testthat/test-function-get_groundwater_data.R b/tests/testthat/test-function-get_groundwater_data.R
index 50ac712b..659edfea 100644
--- a/tests/testthat/test-function-get_groundwater_data.R
+++ b/tests/testthat/test-function-get_groundwater_data.R
@@ -7,10 +7,27 @@
 
 test_that("get_groundwater_data() works", {
 
-  expect_error(
-    wasserportal:::get_groundwater_data()
-    # argument "stations" is missing, with no default
+  f <- wasserportal:::get_groundwater_data
+
+  expect_error(f(debug = FALSE))
+
+  stations <- list(
+    overview_list = list(
+      groundwater.level = data.frame(
+        Messstellennummer = 1
+      ),
+      groundwater.quality = data.frame(
+        Messstellennummer = 1
+      )
+    )
   )
 
-})
+  result <- f(stations, debug = FALSE)
 
+  expect_length(result, 2L)
+  expect_type(result, "list")
+
+  expect_true(all(
+    sapply(result, kwb.utils::mainClass) == "data.table"
+  ))
+})

From 6da4d3ad9aec3798aad88d2fc29aef2ccc5205a3 Mon Sep 17 00:00:00 2001
From: hsonne <hauke.sonnenberg@kompetenz-wasser.de>
Date: Sun, 24 Sep 2023 00:19:08 +0200
Subject: [PATCH 9/9] Implement basic tests where there was no test

---
 tests/testthat/test-function-base_url_download.R    |  5 ++++-
 .../test-function-get_groundwater_options.R         |  6 +++++-
 tests/testthat/test-function-get_overview_options.R |  9 +++++++--
 tests/testthat/test-function-get_stations.R         |  7 +++++--
 .../test-function-get_surfacewater_variables.R      |  7 +++++--
 .../test-function-get_wasserportal_stations.R       |  6 ++++--
 .../test-function-get_wasserportal_stations_table.R |  6 ++++--
 .../test-function-get_wasserportal_variables.R      |  5 +++--
 .../test-function-merge_raw_results_daily.R         | 13 ++++++++++---
 .../test-function-merge_raw_results_monthly.R       | 10 ++++++----
 tests/testthat/test-function-read.R                 |  9 +++++++--
 .../test-function-read_wasserportal_raw_gw.R        | 12 ++++++++++--
 .../testthat/test-function-wasserportal_base_url.R  |  7 +++++--
 13 files changed, 75 insertions(+), 27 deletions(-)

diff --git a/tests/testthat/test-function-base_url_download.R b/tests/testthat/test-function-base_url_download.R
index 7d7e457f..730abc81 100644
--- a/tests/testthat/test-function-base_url_download.R
+++ b/tests/testthat/test-function-base_url_download.R
@@ -7,7 +7,10 @@
 
 test_that("base_url_download() works", {
 
-  wasserportal:::base_url_download()
+  result <- wasserportal:::base_url_download()
 
+  expect_length(result, 1L)
+  expect_type(result, "character")
+  expect_true(startsWith(result, "https://"))
 })
 
diff --git a/tests/testthat/test-function-get_groundwater_options.R b/tests/testthat/test-function-get_groundwater_options.R
index 55622b80..8e164b4b 100644
--- a/tests/testthat/test-function-get_groundwater_options.R
+++ b/tests/testthat/test-function-get_groundwater_options.R
@@ -7,7 +7,11 @@
 
 test_that("get_groundwater_options() works", {
 
-  wasserportal:::get_groundwater_options()
+  result <- wasserportal:::get_groundwater_options()
 
+  expect_identical(
+    names(result),
+    c("groundwater.level", "groundwater.quality")
+  )
 })
 
diff --git a/tests/testthat/test-function-get_overview_options.R b/tests/testthat/test-function-get_overview_options.R
index 15ea723f..a5c48a9e 100644
--- a/tests/testthat/test-function-get_overview_options.R
+++ b/tests/testthat/test-function-get_overview_options.R
@@ -7,7 +7,12 @@
 
 test_that("get_overview_options() works", {
 
-  wasserportal:::get_overview_options()
+  result <- wasserportal:::get_overview_options()
 
-})
+  expect_identical(
+    names(result),
+    c("surface_water", "groundwater")
+  )
 
+  expect_true(all(sapply(result, is.list)))
+})
diff --git a/tests/testthat/test-function-get_stations.R b/tests/testthat/test-function-get_stations.R
index 38cca306..945d4f6a 100644
--- a/tests/testthat/test-function-get_stations.R
+++ b/tests/testthat/test-function-get_stations.R
@@ -7,7 +7,10 @@
 
 test_that("get_stations() works", {
 
-  wasserportal:::get_stations()
+  expect_output(result <- wasserportal:::get_stations())
 
+  expect_identical(
+    names(result),
+    c("overview_list", "overview_df", "crosstable")
+  )
 })
-
diff --git a/tests/testthat/test-function-get_surfacewater_variables.R b/tests/testthat/test-function-get_surfacewater_variables.R
index bb9c7492..81f73f8c 100644
--- a/tests/testthat/test-function-get_surfacewater_variables.R
+++ b/tests/testthat/test-function-get_surfacewater_variables.R
@@ -7,7 +7,10 @@
 
 test_that("get_surfacewater_variables() works", {
 
-  wasserportal:::get_surfacewater_variables()
+  result <- wasserportal:::get_surfacewater_variables()
 
-})
+  expect_type(result, "character")
+
+  expect_true(all(startsWith(names(result), "surface_water.")))
 
+})
diff --git a/tests/testthat/test-function-get_wasserportal_stations.R b/tests/testthat/test-function-get_wasserportal_stations.R
index aed472d3..ddb26156 100644
--- a/tests/testthat/test-function-get_wasserportal_stations.R
+++ b/tests/testthat/test-function-get_wasserportal_stations.R
@@ -7,7 +7,9 @@
 
 test_that("get_wasserportal_stations() works", {
 
-  wasserportal:::get_wasserportal_stations()
+  result <- wasserportal:::get_wasserportal_stations()
 
-})
+  expect_type(result, "list")
 
+  expect_true("MS_Sophienwerder" %in% names(result))
+})
diff --git a/tests/testthat/test-function-get_wasserportal_stations_table.R b/tests/testthat/test-function-get_wasserportal_stations_table.R
index 3bdfca2f..f633b2e8 100644
--- a/tests/testthat/test-function-get_wasserportal_stations_table.R
+++ b/tests/testthat/test-function-get_wasserportal_stations_table.R
@@ -7,7 +7,9 @@
 
 test_that("get_wasserportal_stations_table() works", {
 
-  wasserportal:::get_wasserportal_stations_table()
+  result <- wasserportal:::get_wasserportal_stations_table()
 
-})
+  expect_true(kwb.utils::mainClass(result) == "tbl_df")
+  expect_true("Messstellennummer" %in% names(result))
 
+})
diff --git a/tests/testthat/test-function-get_wasserportal_variables.R b/tests/testthat/test-function-get_wasserportal_variables.R
index 9a095519..0c4a8862 100644
--- a/tests/testthat/test-function-get_wasserportal_variables.R
+++ b/tests/testthat/test-function-get_wasserportal_variables.R
@@ -7,7 +7,8 @@
 
 test_that("get_wasserportal_variables() works", {
 
-  wasserportal:::get_wasserportal_variables()
+  result <- wasserportal:::get_wasserportal_variables()
 
+  expect_type(result, "character")
+  expect_true("Wassertemperatur" %in% names(result))
 })
-
diff --git a/tests/testthat/test-function-merge_raw_results_daily.R b/tests/testthat/test-function-merge_raw_results_daily.R
index c06709ee..da7eb2d3 100644
--- a/tests/testthat/test-function-merge_raw_results_daily.R
+++ b/tests/testthat/test-function-merge_raw_results_daily.R
@@ -7,10 +7,17 @@
 
 test_that("merge_raw_results_daily() works", {
 
-  expect_error(
-    wasserportal:::merge_raw_results_daily()
-    # argument "dfs" is missing, with no default
+  f <- wasserportal:::merge_raw_results_daily
+
+  expect_error(suppressWarnings(f()))
+
+  dfs <- list(
+    data.frame(a = 1:2),
+    data.frame(b = 2:3)
   )
 
+  expect_warning(result <- f(dfs))
+
+  expect_identical(result, dfs)
 })
 
diff --git a/tests/testthat/test-function-merge_raw_results_monthly.R b/tests/testthat/test-function-merge_raw_results_monthly.R
index bf99578d..9f262f2d 100644
--- a/tests/testthat/test-function-merge_raw_results_monthly.R
+++ b/tests/testthat/test-function-merge_raw_results_monthly.R
@@ -7,10 +7,12 @@
 
 test_that("merge_raw_results_monthly() works", {
 
-  expect_error(
-    wasserportal:::merge_raw_results_monthly()
-    # argument "dfs" is missing, with no default
-  )
+  f <- wasserportal:::merge_raw_results_monthly
+
+  expect_error(suppressWarnings(f()))
+
+  expect_warning(result <- f(123))
+  expect_identical(result, 123)
 
 })
 
diff --git a/tests/testthat/test-function-read.R b/tests/testthat/test-function-read.R
index c1ed07ba..ba3d3d93 100644
--- a/tests/testthat/test-function-read.R
+++ b/tests/testthat/test-function-read.R
@@ -7,7 +7,12 @@
 
 test_that("read() works", {
 
-  wasserportal:::read()
+  f <- wasserportal:::read
 
-})
+  expect_identical(f(), NULL)
 
+  expect_identical(
+    f(c("a;b", "1;2,3"), header = TRUE),
+    data.frame(a = 1L, b = 2.3)
+  )
+})
diff --git a/tests/testthat/test-function-read_wasserportal_raw_gw.R b/tests/testthat/test-function-read_wasserportal_raw_gw.R
index f330722d..8666decd 100644
--- a/tests/testthat/test-function-read_wasserportal_raw_gw.R
+++ b/tests/testthat/test-function-read_wasserportal_raw_gw.R
@@ -7,7 +7,15 @@
 
 test_that("read_wasserportal_raw_gw() works", {
 
-  wasserportal:::read_wasserportal_raw_gw()
+  f <- wasserportal:::read_wasserportal_raw_gw
 
-})
+  result  <- f()
+
+  expect_identical(kwb.utils::mainClass(result), "tbl_df")
 
+  expect_identical(
+    names(result),
+    c("Messstellennummer", "Datum", "Parameter", "Einheit", "Messwert")
+  )
+
+})
diff --git a/tests/testthat/test-function-wasserportal_base_url.R b/tests/testthat/test-function-wasserportal_base_url.R
index 8ede8100..a0d742f4 100644
--- a/tests/testthat/test-function-wasserportal_base_url.R
+++ b/tests/testthat/test-function-wasserportal_base_url.R
@@ -7,7 +7,10 @@
 
 test_that("wasserportal_base_url() works", {
 
-  wasserportal:::wasserportal_base_url()
+  result <- wasserportal:::wasserportal_base_url()
 
-})
+  expect_type(result, "character")
+  expect_length(result, 1L)
+  expect_true(startsWith(result, "https://"))
 
+})