From 6a98ee9b824b80eaf0f1fa457a2bcdf393834bb3 Mon Sep 17 00:00:00 2001
From: cyschneck <22159116+cyschneck@users.noreply.github.com>
Date: Sun, 17 Mar 2024 20:39:08 -0600
Subject: [PATCH] verify output with approx tolerance

---
 ...orVerifyOutput.py => test_verifyOutput.py} | 31 ++++++++++++-------
 1 file changed, 20 insertions(+), 11 deletions(-)
 rename centerline_width/pytests/{test_errorVerifyOutput.py => test_verifyOutput.py} (86%)

diff --git a/centerline_width/pytests/test_errorVerifyOutput.py b/centerline_width/pytests/test_verifyOutput.py
similarity index 86%
rename from centerline_width/pytests/test_errorVerifyOutput.py
rename to centerline_width/pytests/test_verifyOutput.py
index 8555a3a..02e87a6 100644
--- a/centerline_width/pytests/test_errorVerifyOutput.py
+++ b/centerline_width/pytests/test_verifyOutput.py
@@ -2,6 +2,9 @@
 # Pytests to Compare and Verify Expected Outputs
 from io import StringIO
 
+# External Python libraries (installed via pip install)
+import pytest
+
 # Internal centerline-width reference to access functions, global variables, and error handling
 import centerline_width
 
@@ -29,7 +32,7 @@ def test_riverCenterline_centerlineLength():
     )
     csv_example.seek(0)
     test_river = centerline_width.riverCenterline(csv_data=csv_example)
-    assert test_river.centerlineLength == 1.3534252753108382
+    assert test_river.centerlineLength == pytest.approx(1.3534252753108382)
 
 
 def test_riverWidthFromCenterline_transectSlopeAverage():
@@ -78,12 +81,15 @@ def test_riverWidthFromCenterline_transectSlopeAverage():
         transect_span_distance=span_distance,
         apply_smoothing=False)
     # Verify same keys are used
-    assert list(river_width_dict.keys()) == centerline_slope_expected
+    assert list(
+        river_width_dict.keys()) == pytest.approx(centerline_slope_expected)
     # Verify output
-    assert river_width_dict == {
-        (-4.269872495291112, 48.28213146317461): 0.476108068803046,
-        (-4.263272551474902, 48.281909175456114): 0.4790787641902623
-    }
+    assert river_width_dict == pytest.approx({
+        (-4.269872495291112, 48.28213146317461):
+        0.476108068803046,
+        (-4.263272551474902, 48.281909175456114):
+        0.4790787641902623
+    })
 
 
 def test_riverWidthFromCenterline_transectSlopeDirect():
@@ -132,9 +138,12 @@ def test_riverWidthFromCenterline_transectSlopeDirect():
         transect_span_distance=span_distance,
         apply_smoothing=False)
     # Verify same keys are used
-    assert list(river_width_dict.keys()) == centerline_slope_expected
+    assert list(
+        river_width_dict.keys()) == pytest.approx(centerline_slope_expected)
     # Verify output
-    assert river_width_dict == {
-        (-4.269872495291112, 48.28213146317461): 0.476108068803046,
-        (-4.263272551474902, 48.281909175456114): 0.4790787641902623
-    }
+    assert river_width_dict == pytest.approx({
+        (-4.269872495291112, 48.28213146317461):
+        0.476108068803046,
+        (-4.263272551474902, 48.281909175456114):
+        0.4790787641902623
+    })