[PATCH 13/41] robocopy/tests: check if files are equal in source and destination

[Florian Eder]

Checks if files are (correctly) overwritten if they already exist in the
destination folder, by checking whether the file size is equal in source
and destination

Signed-off-by: Florian Eder <others.meder at gmail.com>
---
 programs/robocopy/tests/robocopy.c | 40 ++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/programs/robocopy/tests/robocopy.c b/programs/robocopy/tests/robocopy.c
index 433b65c587f..4bbf600e45a 100644
--- a/programs/robocopy/tests/robocopy.c
+++ b/programs/robocopy/tests/robocopy.c
@@ -172,8 +172,48 @@ static void check_folder_and_delete(const WCHAR *relative_path, BOOL should_exis
     }
 }
 
+static void check_files_equal(const WCHAR *relative_path_1, const WCHAR *relative_path_2, BOOL should_be_equal)
+{
+    WCHAR path_1[1024], path_2[1024];
+    HANDLE file_1, file_2;
+    LARGE_INTEGER size_1, size_2;
+    wcscpy(path_1, L"\\\\?\\");
+    GetTempPathW(ARRAY_SIZE(path_1) - 4, &(path_1[4]));
+    wcscpy(path_2, L"\\\\?\\");
+    GetTempPathW(ARRAY_SIZE(path_2) - 4, &(path_2[4]));
+    wcscat(path_1, relative_path_1);
+    wcscat(path_2, relative_path_2);
+    file_1 = CreateFileW(path_1, FILE_GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
+    file_2 = CreateFileW(path_2, FILE_GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
+    if (file_1 == INVALID_HANDLE_VALUE || file_2 == INVALID_HANDLE_VALUE)
+    {
+        ok(file_1 != INVALID_HANDLE_VALUE, "file \"%S\" does not exist, can't check equality with file \"%S\"\n", relative_path_1, relative_path_2);
+        ok(file_2 != INVALID_HANDLE_VALUE, "file \"%S\" does not exist, can't check equality with file \"%S\"\n", relative_path_2, relative_path_1);
+        CloseHandle(file_1);
+        CloseHandle(file_2);
+        return;
+    }
+    GetFileSizeEx(file_1, &size_1);
+    GetFileSizeEx(file_2, &size_2);
+    CloseHandle(file_1);
+    CloseHandle(file_2);
+    if (size_1.QuadPart == size_2.QuadPart)
+    {
+        ok(should_be_equal, "files \"%S\" and \"%S\" should be different, but are equal (size: %lld bytes)\n",
+                                    relative_path_1, relative_path_2, size_1.QuadPart);
+    }
+    else
+    {
+        ok(!should_be_equal, "files \"%S\" and \"%S\" should be equal, but are different (size: %lld bytes vs %lld bytes)\n",
+                                  relative_path_1, relative_path_2, size_1.QuadPart, size_2.QuadPart);
+    }
+}
+
 static void check_basic_copy_test(void)
 {
+    check_files_equal(L"robocopy_source\\fileA.a", L"robocopy_destination\\fileA.a", TRUE);
+    check_files_equal(L"robocopy_source\\fileB.b", L"robocopy_destination\\fileB.b", TRUE);
+
     check_file_and_delete(L"robocopy_source\\fileA.a", TRUE);
     check_file_and_delete(L"robocopy_source\\fileB.b", TRUE);
     check_file_and_delete(L"robocopy_source\\folderA\\fileC.c", TRUE);
-- 
2.32.0