lib: Add tests for generating SHA hashes

Signed-off-by: Stephen Augustus <saugustus@vmware.com>

lib/common_test.sh

@@ -17,9 +17,11 @@
 # common.sh unit tests
 #
 # shellcheck source=./lib/testing.sh
+# shellcheck disable=SC1091
 source "$(dirname "$(readlink -ne "${BASH_SOURCE[0]}")")/testing.sh"
 
 # shellcheck source=./lib/common.sh
+# shellcheck disable=SC1091
 source "$(dirname "$(readlink -ne "${BASH_SOURCE[0]}")")/common.sh"
 readonly TESTDATA="$( cd "$(dirname "$0")" && pwd )/testdata"
 
@@ -28,7 +30,7 @@ readonly TESTDATA="$( cd "$(dirname "$0")" && pwd )/testdata"
 #       - add `set -o nounset`
 #
 #       We can do that when all the things we source do not rely on unset
-#       varaibales and ignoring errors. This will require quite some
+#       variables and ignoring errors. This will require quite some
 #       refactoring, so this is the best we can do for now.
 set -o errexit
 set -o pipefail
@@ -42,4 +44,53 @@ TEST_run_stateful() {
     "passing command and arguments"
 }
 
+TEST_generate_sha() {
+  test_scaffold
+
+  local expected_dir
+  local testfilename1
+  local testfilename2
+  local testfile1
+  local testfile2
+
+  expected_dir="$TESTDATA/common/shas"
+
+  testfilename1="shafile1.txt"
+  testfilename2="shafile2.txt"
+
+  # shellcheck disable=SC2154
+  testfile1="${tmp_dir}/${testfilename1}"
+  testfile2="${tmp_dir}/${testfilename2}"
+
+  # shellcheck disable=SC2154
+  echo -n "This is the first file to test the generation of SHA hashes." > "$testfile1"
+
+  # shellcheck disable=SC2154
+  echo -n "This is the second file to test the generation of SHA hashes." > "$testfile2"
+
+  find "$tmp_dir" -type f | while read -r path; do
+    for bits in "256" "512"; do
+      sum="$(shasum -a"$bits" "${path}" | sed 's/  .*\//  /')" || return 1
+      echo "$sum" > "${path}.sha${bits}"
+      echo "$sum" >> "${tmp_dir}/SHA${bits}SUMS"
+    done
+  done
+
+  for sha_file in "$testfile1" "$testfile2"; do
+    for bits in "256" "512"; do
+      assert_equal_content \
+        <( common::sha "${sha_file}" "${bits}" "full") \
+        "${expected_dir}/$(basename "${sha_file}").sha${bits}" \
+        "Validated sha${bits} hash for ${sha_file}"
+    done
+  done
+
+  for bits in "256" "512"; do
+    assert_equal_content \
+      "$tmp_dir/SHA${bits}SUMS" \
+      "$expected_dir/SHA${bits}SUMS" \
+      "Validated SHA${bits}SUMS"
+  done
+}
+
 test_main "$@"

lib/testdata/common/shafile1.txt

@@ -0,0 +1 @@
+This is the first file to test the generation of SHA hashes.

lib/testdata/common/shafile2.txt

@@ -0,0 +1 @@
+This is the second file to test the generation of SHA hashes.

lib/testdata/common/shas/SHA256SUMS

@@ -0,0 +1,2 @@
+25073faf6553b2ff6c6cfc66c3b52f6bbf7d0f083fd2d171174f00ae70cd7eb7  shafile1.txt
+fd3d841e433b61936dc4ed38be28a577cadee21c4181ca2364b43416bb971f04  shafile2.txt

lib/testdata/common/shas/SHA512SUMS

@@ -0,0 +1,2 @@
+e414bed12a1fb345620d96f4850652ea4e0fc9e9630451ed8bbd7cf8ae78bb0d78a53d36c847ea4e7bf035d2c553717f1456447d0c088b4ba56d9992c8840a52  shafile1.txt
+3bd0e80f05efc814afc76c33fbc3e569de780de40e7f74ca7b67ffcbb58bee595e0e1b5047196a488a101ffb6f77cbee5afa029373d59285e5f5ffb1ff4b2477  shafile2.txt

lib/testdata/common/shas/shafile1.txt

@@ -0,0 +1 @@
+This is the first file to test the generation of SHA hashes.

lib/testdata/common/shas/shafile1.txt.sha256

@@ -0,0 +1 @@
+25073faf6553b2ff6c6cfc66c3b52f6bbf7d0f083fd2d171174f00ae70cd7eb7  shafile1.txt

lib/testdata/common/shas/shafile1.txt.sha512

@@ -0,0 +1 @@
+e414bed12a1fb345620d96f4850652ea4e0fc9e9630451ed8bbd7cf8ae78bb0d78a53d36c847ea4e7bf035d2c553717f1456447d0c088b4ba56d9992c8840a52  shafile1.txt

lib/testdata/common/shas/shafile2.txt

@@ -0,0 +1 @@
+This is the second file to test the generation of SHA hashes.

lib/testdata/common/shas/shafile2.txt.sha256

@@ -0,0 +1 @@
+fd3d841e433b61936dc4ed38be28a577cadee21c4181ca2364b43416bb971f04  shafile2.txt

lib/testdata/common/shas/shafile2.txt.sha512

@@ -0,0 +1 @@
+3bd0e80f05efc814afc76c33fbc3e569de780de40e7f74ca7b67ffcbb58bee595e0e1b5047196a488a101ffb6f77cbee5afa029373d59285e5f5ffb1ff4b2477  shafile2.txt

lib/testing.sh

@@ -37,14 +37,14 @@ test_main() {
 
 test_scaffold() {
   func_name="${FUNCNAME[1]}"
-  tmpDir="$(mktemp -d "${func_name}.XXXXXX")"
-  trap 'rm -rf -- "$tmpDir"' EXIT
+  tmp_dir="$(mktemp -d "${func_name}.XXXXXX")"
+  trap 'rm -rf -- "$tmp_dir"' EXIT
 
   # override some vars and func to not clutter output
   common::timestamp() { :; }
   # shellcheck disable=SC2034
-  PROGSTATE="${tmpDir}/${func_name}-state.txt" \
-    LOGFILE="${tmpDir}/${func_name}.log" \
+  PROGSTATE="${tmp_dir}/${func_name}-state.txt" \
+    LOGFILE="${tmp_dir}/${func_name}.log" \
     HR='' \
     TPUT[BOLD]='' \
     TPUT[OFF]=''