[VCQ-101] Remove redundant whitespace from commands when asserting eq…

…uivalent commands

python/vmaf/tools/testutils.py

@@ -37,14 +37,27 @@ def replace_root(command_line: str, root: str) -> str:
     return re.sub(root, '[ROOT]', command_line)
 
 
+def remove_redundant_whitespace(command_line: str) -> str:
+    """
+    Replaces multiple whitespace between words with a single one, and removes redundant whitespace at the start and end
+    >>> remove_redundant_whitespace('  a b  c d   e     f ')
+    'a b c d e f'
+    >>> remove_redundant_whitespace('cat /opt/project/vmaf/workspace/workdir/9e693ccc-7706-49c5-8c8e-40f5242e81a6/dis_test_0_0_seeking_10_288_375_notyuv_lanczos_accurate_rnd_10to14_prece_FFmpegDecoder_postunsharpunsharp_q_480x360_PostDecode_tmp/pixfmt/* >  /opt/project/vmaf/workspace/workdir/9e693ccc-7706-49c5-8c8e-40f5242e81a6/dis_test_0_0_seeking_10_288_375_notyuv_lanczos_accurate_rnd_10to14_prece_FFmpegDecoder_postunsharpunsharp_q_480x360_PostPreresamplingFilter0 ')
+    'cat /opt/project/vmaf/workspace/workdir/9e693ccc-7706-49c5-8c8e-40f5242e81a6/dis_test_0_0_seeking_10_288_375_notyuv_lanczos_accurate_rnd_10to14_prece_FFmpegDecoder_postunsharpunsharp_q_480x360_PostDecode_tmp/pixfmt/* > /opt/project/vmaf/workspace/workdir/9e693ccc-7706-49c5-8c8e-40f5242e81a6/dis_test_0_0_seeking_10_288_375_notyuv_lanczos_accurate_rnd_10to14_prece_FFmpegDecoder_postunsharpunsharp_q_480x360_PostPreresamplingFilter0'
+    """
+    return " ".join(command_line.split())
+
+
 def assert_equivalent_commands(self, cmds: List[str], cmds_expected: List[str], root: str, root_expected: str):
     assert len(cmds) == len(cmds_expected), f"length of cmds and cmds_expected are not equal: {len(cmds)} vs. {len(cmds_expected)}"
     for cmd, cmd_expected in zip(cmds, cmds_expected):
 
         cmd1 = replace_uuid(cmd)
         cmd2 = replace_root(cmd1, root)
+        cmd3 = remove_redundant_whitespace(cmd2)
 
         cmd_expected1 = replace_uuid(cmd_expected)
         cmd_expected2 = replace_root(cmd_expected1, root_expected)
+        cmd_expected3 = remove_redundant_whitespace(cmd_expected2)
 
-        self.assertEqual(cmd2, cmd_expected2, msg=f"cmd and cmd_expected are not matched:\ncmd: {cmd}\ncmd:expected: {cmd_expected}")
+        self.assertEqual(cmd3, cmd_expected3, msg=f"cmd and cmd_expected are not matched:\ncmd: {cmd}\ncmd:expected: {cmd_expected}")