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Re: [PATCH][merge-tracking] XFail Testcase for 'avoid merge on subtree of a target if it has the same mergeinfo already'

From: Kamesh Jayachandran <kamesh_at_collab.net>
Date: 2006-11-29 08:53:46 CET

Hi,
Looks fine with me.
We need not update 'wc' to r3.
I did it originally as it was easier to create expected_status outside
create_deep_trees.
As create_deep_trees return 'expected_status' we need not update the
'WC' to r3.

(I am in favour of it as it looks clean to caller, not in favour of it
as it is unnecessary.)

Anyway it does not matter.

With regards
Kamesh Jayachandran

Daniel Rall wrote:
> On Tue, 28 Nov 2006, Kamesh Jayachandran wrote:
> ...
>
>> If merge target's subtree has merge avoid repeated merge by taking in to
>> account what is already merged.
>>
>> * subversion/tests/cmdline/merge_tests.py
>> (create_deep_trees):
>> New function with a code borrowed from
>> 'avoid_repeated_merge_using_inherited_merge_info' to reuse from the new
>> Testcase.
>> (avoid_repeated_merge_using_inherited_merge_info):
>> Changes in effect of new 'create_deep_trees'.
>> (avoid_repeated_merge_on_subtree_having_merge_info):
>> New function for the Testcase mentioned in the summary.
>> (test_list):
>> Include 'avoid_repeated_merge_on_subtree_having_merge_info' as XFail.
>>
>
> Kamesh, this is a great start! I'm attaching a smaller, revised patch
> which reduces the redundancy and the delta. There may be more
> redundancy that we can factor out as well. Also, the inline comments
> in the new test case should be more clear.
>
> - Dan
>
> ------------------------------------------------------------------------
>
> Index: subversion/tests/cmdline/merge_tests.py
> ===================================================================
> --- subversion/tests/cmdline/merge_tests.py (revision 22500)
> +++ subversion/tests/cmdline/merge_tests.py (working copy)
> @@ -3857,12 +3857,10 @@
> expected_backup_status,
> expected_backup_skip)
>
> -def avoid_repeated_merge_using_inherited_merge_info(sbox):
> - "use inherited merge info to avoid repeated merge"
> +def create_deep_trees(wc_dir):
> + """Create A/B/F/E by moving A/B/E to A/B/F/E, copy A/B to
> + A/copy-of-B, update the WC to r3, and return the expected status."""
>
> - sbox.build()
> - wc_dir = sbox.wc_dir
> -
> A_path = os.path.join(wc_dir, 'A')
> A_B_path = os.path.join(A_path, 'B')
> A_B_E_path = os.path.join(A_B_path, 'E')
> @@ -3909,12 +3907,30 @@
> expected_status, None,
> None, None, None, None, wc_dir)
>
> + # Bring the entire WC up to date with rev 3, and return its status.
> + svntest.actions.run_and_verify_svn(None, None, [], 'update', wc_dir)
> + expected_status.tweak(wc_rev=3)
> + return expected_status
> +
> +def avoid_repeated_merge_using_inherited_merge_info(sbox):
> + "use inherited merge info to avoid repeated merge"
> +
> + sbox.build()
> + wc_dir = sbox.wc_dir
> +
> + A_path = os.path.join(wc_dir, 'A')
> + A_B_path = os.path.join(A_path, 'B')
> + A_B_E_path = os.path.join(A_B_path, 'E')
> + A_B_F_path = os.path.join(A_B_path, 'F')
> + copy_of_B_path = os.path.join(A_path, 'copy-of-B')
> +
> + # Create a deeper directory structure, bringing the WC to rev 3.
> + expected_status = create_deep_trees(wc_dir)
> +
> # Edit alpha and commit it, creating revision 4.
> alpha_path = os.path.join(A_B_F_path, 'E', 'alpha')
> new_content_for_alpha = 'new content to alpha\n'
> - fp = open(alpha_path, 'w')
> - fp.write(new_content_for_alpha)
> - fp.close()
> + svntest.main.file_write(alpha_path, new_content_for_alpha)
>
> expected_output = svntest.wc.State(wc_dir, {
> 'A/B/F/E/alpha' : Item(verb='Sending'),
> @@ -4019,6 +4035,153 @@
> finally:
> os.chdir(saved_cwd)
>
> +def avoid_repeated_merge_on_subtree_with_merge_info(sbox):
> + "use subtree's merge info to avoid repeated merge"
> +
> + sbox.build()
> + wc_dir = sbox.wc_dir
> +
> + A_path = os.path.join(wc_dir, 'A')
> + A_B_path = os.path.join(A_path, 'B')
> + A_B_E_path = os.path.join(A_B_path, 'E')
> + A_B_F_path = os.path.join(A_B_path, 'F')
> + A_B_F_E_path = os.path.join(A_B_F_path, 'E')
> + copy_of_B_path = os.path.join(A_path, 'copy-of-B')
> +
> + # Create a deeper directory structure, bringing the WC to rev 3.
> + expected_status = create_deep_trees(wc_dir)
> +
> + # Edit alpha and commit it, creating revision 4.
> + alpha_path = os.path.join(A_B_F_E_path, 'alpha')
> + new_content_for_alpha = 'new content to alpha\n'
> + svntest.main.file_write(alpha_path, new_content_for_alpha)
> +
> + expected_output = svntest.wc.State(wc_dir, {
> + 'A/B/F/E/alpha' : Item(verb='Sending'),
> + })
> + expected_status.tweak('A/B/F/E/alpha', wc_rev=4)
> + svntest.actions.run_and_verify_commit(wc_dir, expected_output,
> + expected_status, None,
> + None, None, None, None, wc_dir)
> +
> + copy_of_B_F_E_path = os.path.join(copy_of_B_path, 'F', 'E')
> +
> + # Search for the comment entitled "The Merge Kluge" elsewhere in
> + # this file, to understand why we shorten and chdir() below.
> + short_copy_of_B_F_E_path = shorten_path_kludge(copy_of_B_F_E_path)
> +
> + # Merge changes to alpha from rev 4.
> + expected_output = wc.State(short_copy_of_B_F_E_path, {
> + 'alpha' : Item(status='U '),
> + })
> +
> + expected_status = wc.State(short_copy_of_B_F_E_path, {
> + '' : Item(status=' M', wc_rev=3),
> + 'alpha' : Item(status='M ', wc_rev=3),
> + 'beta' : Item(status=' ', wc_rev=3),
> + })
> +
> + expected_disk = wc.State('', {
> + '' : Item(props={SVN_PROP_MERGE_INFO : '/A/B/F/E:4'}),
> + 'alpha' : Item(new_content_for_alpha),
> + 'beta' : Item("This is the file 'beta'.\n"),
> + })
> +
> + expected_skip = wc.State(short_copy_of_B_F_E_path, { })
> + saved_cwd = os.getcwd()
> + try:
> + os.chdir(svntest.main.work_dir)
> + svntest.actions.run_and_verify_merge(short_copy_of_B_F_E_path, '3', '4',
> + sbox.repo_url + '/A/B/F/E',
> + expected_output,
> + expected_disk,
> + expected_status,
> + expected_skip,
> + None,
> + None,
> + None,
> + None,
> + None, 1)
> + finally:
> + os.chdir(saved_cwd)
> +
> + expected_output = svntest.wc.State(copy_of_B_F_E_path, {
> + '' : Item(verb='Sending'),
> + 'alpha' : Item(verb='Sending'),
> + })
> +
> + # Commit the result of the merge, creating revision 5.
> + svntest.actions.run_and_verify_commit(short_copy_of_B_F_E_path,
> + expected_output, None, None,
> + None, None, None, None, wc_dir)
> +
> + # Edit A/B/F/E/alpha and commit it, creating revision 6.
> + new_content_for_alpha = 'new content to alpha\none more line\n'
> + svntest.main.file_write(alpha_path, new_content_for_alpha)
> +
> + expected_output = svntest.wc.State(A_B_F_E_path, {
> + 'alpha' : Item(verb='Sending'),
> + })
> +
> + expected_status = wc.State(A_B_F_E_path, {
> + '' : Item(status=' ', wc_rev=3),
> + 'alpha' : Item(status=' ', wc_rev=6),
> + 'beta' : Item(status=' ', wc_rev=3),
> + })
> +
> + svntest.actions.run_and_verify_commit(A_B_F_E_path, expected_output,
> + expected_status, None,
> + None, None, None, None, wc_dir)
> +
> + # Search for the comment entitled "The Merge Kluge" elsewhere in
> + # this file, to understand why we shorten and chdir() below.
> + short_copy_of_B_path = shorten_path_kludge(copy_of_B_path)
> +
> + # Update the WC to bring /A/copy_of_B from rev 3 to rev 6.
> + # Without this update expected_status tree would be cumbersome to
> + # understand.
> + svntest.actions.run_and_verify_svn(None, None, [], 'update', wc_dir)
> +
> + # Merge changes from rev 6 of B (to alpha) into copy_of_B.
> + expected_output = wc.State(short_copy_of_B_path, {})
> + expected_status = wc.State(short_copy_of_B_path, {
> + # When we merge multiple sub-targets, we record merge info on each
> + # child. In this particular case, as we don't have a successful
> + # merge, there's no change in the WC.
> + '' : Item(status=' ', wc_rev=6),
> + 'F/E' : Item(status=' ', wc_rev=6),
> + 'F/E/alpha' : Item(status=' ', wc_rev=6),
> + 'F/E/beta' : Item(status=' ', wc_rev=6),
> + 'lambda' : Item(status=' ', wc_rev=6),
> + 'F' : Item(status=' ', wc_rev=6),
> + })
> + expected_disk = wc.State('', {
> + '' : Item(),
> + 'F/E' : Item(props={SVN_PROP_MERGE_INFO : '/A/B:4-6'}),
> + 'F/E/alpha' : Item(new_content_for_alpha),
> + 'F/E/beta' : Item("This is the file 'beta'.\n"),
> + 'F' : Item(),
> + 'lambda' : Item("This is the file 'lambda'.\n")
> + })
> + expected_skip = wc.State(short_copy_of_B_path, { })
> + saved_cwd = os.getcwd()
> + try:
> + os.chdir(svntest.main.work_dir)
> + svntest.actions.run_and_verify_merge(short_copy_of_B_path, '3', '6',
> + sbox.repo_url + \
> + '/A/B',
> + expected_output,
> + expected_disk,
> + expected_status,
> + expected_skip,
> + None,
> + None,
> + None,
> + None,
> + None, 1)
> + finally:
> + os.chdir(saved_cwd)
> +
> ########################################################################
> # Run the tests
>
> @@ -4064,6 +4227,7 @@
> merge_conflict_markers_matching_eol,
> XFail(merge_eolstyle_handling),
> avoid_repeated_merge_using_inherited_merge_info,
> + XFail(avoid_repeated_merge_on_subtree_with_merge_info),
> ]
>
> if __name__ == '__main__':
>

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Received on Wed Nov 29 08:54:04 2006

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