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From: Jonathan Tan <jonathantanmy@google.com>
To: git@vger.kernel.org
Cc: Jonathan Tan <jonathantanmy@google.com>, stolee@gmail.com
Subject: [PATCH] t4067: make rename detection test output raw diff
Date: Tue, 19 May 2020 11:31:51 -0700
Message-ID: <20200519183151.46138-1-jonathantanmy@google.com> (raw)
In-Reply-To: <ef72aedf-4264-e386-9563-050c54483c93@gmail.com>

95acf11a3d ("diff: restrict when prefetching occurs", 2020-04-07) taught
diff to prefetch blobs in a more limited set of situations. These
limited situations include when the output format requires blob data,
and when inexact rename detection is needed.

There is an existing test case that tests inexact rename detection, but
it also uses an output format that requires blob data, resulting in the
inexact-rename-detection-only code not being tested. Update this test to
use the raw output format, which does not require blob data.

Thanks to Derrick Stolee for noticing this lapse in code coverage and
for doing the preliminary analysis [1].

[1] https://lore.kernel.org/git/853759d3-97c3-241f-98e1-990883cd204e@gmail.com/

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
---
Thanks, Stolee. Yes, we were never in a situation where there are any
missing objects at the point of inexact rename detection (despite having
a test exactly for this), but this situation is possible, and I've
updated the test so that we encounter this situation.
---
 t/t4067-diff-partial-clone.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/t/t4067-diff-partial-clone.sh b/t/t4067-diff-partial-clone.sh
index c1ed1c2fc4..ef8e0e9cb0 100755
--- a/t/t4067-diff-partial-clone.sh
+++ b/t/t4067-diff-partial-clone.sh
@@ -125,8 +125,8 @@ test_expect_success 'diff with rename detection batches blobs' '
 
 	# Ensure that there is exactly 1 negotiation by checking that there is
 	# only 1 "done" line sent. ("done" marks the end of negotiation.)
-	GIT_TRACE_PACKET="$(pwd)/trace" git -C client diff -M HEAD^ HEAD >out &&
-	grep "similarity index" out &&
+	GIT_TRACE_PACKET="$(pwd)/trace" git -C client diff --raw -M HEAD^ HEAD >out &&
+	grep ":100644 100644.*R[0-9][0-9][0-9].*b.*c" out &&
 	grep "git> done" trace >done_lines &&
 	test_line_count = 1 done_lines
 '
-- 
2.26.2.761.g0e0b3e54be-goog


  parent reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-15 17:22 Git Test Coverage Report (v2.27.0-rc0) Derrick Stolee
2020-05-19 12:11 ` Derrick Stolee
2020-05-19 20:07   ` René Scharfe
2020-05-19 23:42   ` brian m. carlson
2020-05-20  1:38     ` brian m. carlson
2020-05-19 18:31 ` Jonathan Tan [this message]
2020-05-19 19:00   ` [PATCH] t4067: make rename detection test output raw diff Derrick Stolee
2020-05-20  1:41 ` [PATCH 1/1] builtin/checkout: simplify metadata initialization brian m. carlson
2020-05-20 15:17   ` Junio C Hamano
2020-05-20 22:37     ` brian m. carlson
2020-05-21  2:07 ` [PATCH v2 0/2] Improve Fix code coverage for checkout brian m. carlson
2020-05-21  2:07   ` [PATCH v2 1/2] builtin/checkout: simplify metadata initialization brian m. carlson
2020-05-21 17:35     ` Junio C Hamano
2020-05-23 12:22       ` brian m. carlson
2020-05-21  2:07   ` [PATCH v2 2/2] t2060: add a test for switch with --orphan and --discard-changes brian m. carlson
2020-05-21 12:38   ` [PATCH v2 0/2] Improve Fix code coverage for checkout Derrick Stolee

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