diff: make patchid computation work with all types of commits.

Current implementation of patchid is not computing a correct patchid
when given a patch where, for example, a new file is added or removed.
Some more corner cases need to be handled to have same behavior as git
patch-id command.
Add some more tests to cover those corner cases.

Signed-off-by: Gregory Herrero <gregory.herrero@oracle.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/tests/diff/patchid.c b/tests/diff/patchid.c
index 75a2aa814..621a720f7 100644
--- a/tests/diff/patchid.c
+++ b/tests/diff/patchid.c
@@ -20,6 +20,39 @@ void test_diff_patchid__simple_commit(void)
 	verify_patch_id(PATCH_SIMPLE_COMMIT, "06094b1948b878b7d9ff7560b4eae672a014b0ec");
 }
 
+void test_diff_patchid__deleted_file(void)
+{
+	verify_patch_id(PATCH_DELETE_ORIGINAL, "d18507fe189f49c028b32c8c34e1ad98dd6a1aad");
+	verify_patch_id(PATCH_DELETED_FILE_2_HUNKS, "f31412498a17e6c3fbc635f2c5f9aa3ef4c1a9b7");
+}
+
+void test_diff_patchid__created_file(void)
+{
+	verify_patch_id(PATCH_ADD_ORIGINAL, "a7d39379308021465ae2ce65e338c048a3110db6");
+}
+
+void test_diff_patchid__binary_file(void)
+{
+	verify_patch_id(PATCH_ADD_BINARY_NOT_PRINTED, "2b31236b485faa30cf4dd33e4d6539829996739f");
+}
+
+void test_diff_patchid__renamed_file(void)
+{
+	verify_patch_id(PATCH_RENAME_EXACT, "4666d50cea4976f6f727448046d43461912058fd");
+	verify_patch_id(PATCH_RENAME_SIMILAR, "a795087575fcb940227be524488bedd6b3d3f438");
+}
+
+void test_diff_patchid__modechange(void)
+{
+	verify_patch_id(PATCH_MODECHANGE_UNCHANGED, "dbf3423ee98375ef1c72a79fbd29a049a2bae771");
+	verify_patch_id(PATCH_MODECHANGE_MODIFIED, "93aba696e1bbd2bbb73e3e3e62ed71f232137657");
+}
+
+void test_diff_patchid__shuffle_hunks(void)
+{
+	verify_patch_id(PATCH_DELETED_FILE_2_HUNKS_SHUFFLED, "f31412498a17e6c3fbc635f2c5f9aa3ef4c1a9b7");
+}
+
 void test_diff_patchid__filename_with_spaces(void)
 {
 	verify_patch_id(PATCH_APPEND_NO_NL, "f0ba05413beaef743b630e796153839462ee477a");