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[PATCH v2 2/2] t5536: simplify checking of messages output to stderr

From
Ramsay Jones <ramsay@ramsayjones.plus.com>
Date
Feb 24, 2018, 01:22 UTC
Message-ID
<550fb3f4-8d25-c5c4-0ecd-3a4e61ea13f4@ramsayjones.plus.com>
From: SZEDER Gábor <szeder.dev@gmail.com>

Commit 2071e05ed2 ("t5536: new test of refspec conflicts when fetching", 2013-10-30), introduced the verify_stderr() function which was used to verify that certain fatal/warning messages were issued by a given git command. In addition, verify_stderr() would filter a specific "fatal: The remote end hung up unexpectedly" message, which may, or may not, be present (depending on the relative timing of the git-fetch and git-upload-pack processes).

The verify_stderr() function has seen several modifications, which has introduced a couple of minor problems. For example, commit 1edbaac3bb ("tests: use test_i18n* functions to suppress false positives", 2016-06-17) introduced an inappropriate test_i18ngrep call and commit f096e6e826 ("fetch: improve the error messages emitted for conflicting refspecs", 2013-10-30) included an ineffective invocation of sort at the end of a grep pipeline.

Instead of fixing these minor problems in verify_stderr(), we take the simpler approach of directly searching the error file, using test_i18ngrep, for the specific message(s) we expect. (The only minor downside is that we would not notice any new messages).

Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
---
 t/t5536-fetch-conflicts.sh | 22 ++++------------------
 1 file changed, 4 insertions(+), 18 deletions(-)
diff --git a/t/t5536-fetch-conflicts.sh b/t/t5536-fetch-conflicts.sh
index 644736b8a..91f28c2f7 100755
--- a/t/t5536-fetch-conflicts.sh
+++ b/t/t5536-fetch-conflicts.sh
@@ -18,14 +18,6 @@ setup_repository () {
 	)
 }
 
-verify_stderr () {
-	cat >expected &&
-	# We're not interested in the error
-	# "fatal: The remote end hung up unexpectedly":
-	test_i18ngrep -E '^(fatal|warning):' error | grep -v 'hung up' >actual | sort &&
-	test_i18ncmp expected actual
-}
-
 test_expect_success 'setup' '
 	git commit --allow-empty -m "Initial" &&
 	git branch branch1 &&
@@ -48,9 +40,7 @@ test_expect_success 'fetch conflict: config vs. config' '
 		"+refs/heads/branch2:refs/remotes/origin/branch1" && (
 		cd ccc &&
 		test_must_fail git fetch origin 2>error &&
-		verify_stderr <<-\EOF
-		fatal: Cannot fetch both refs/heads/branch1 and refs/heads/branch2 to refs/remotes/origin/branch1
-		EOF
+		test_i18ngrep "fatal: Cannot fetch both refs/heads/branch1 and refs/heads/branch2 to refs/remotes/origin/branch1" error
 	)
 '
 
@@ -77,9 +67,7 @@ test_expect_success 'fetch conflict: arg vs. arg' '
 		test_must_fail git fetch origin \
 			refs/heads/*:refs/remotes/origin/* \
 			refs/heads/branch2:refs/remotes/origin/branch1 2>error &&
-		verify_stderr <<-\EOF
-		fatal: Cannot fetch both refs/heads/branch1 and refs/heads/branch2 to refs/remotes/origin/branch1
-		EOF
+		test_i18ngrep "fatal: Cannot fetch both refs/heads/branch1 and refs/heads/branch2 to refs/remotes/origin/branch1" error
 	)
 '
 
@@ -90,10 +78,8 @@ test_expect_success 'fetch conflict: criss-cross args' '
 		git fetch origin \
 			refs/heads/branch1:refs/remotes/origin/branch2 \
 			refs/heads/branch2:refs/remotes/origin/branch1 2>error &&
-		verify_stderr <<-\EOF
-		warning: refs/remotes/origin/branch1 usually tracks refs/heads/branch1, not refs/heads/branch2
-		warning: refs/remotes/origin/branch2 usually tracks refs/heads/branch2, not refs/heads/branch1
-		EOF
+		test_i18ngrep "warning: refs/remotes/origin/branch1 usually tracks refs/heads/branch1, not refs/heads/branch2" error &&
+		test_i18ngrep "warning: refs/remotes/origin/branch2 usually tracks refs/heads/branch2, not refs/heads/branch1" error
 	)
 '
 
-- 
2.16.0
Message 1 of 1 in “t5536: simplify checking of messages output to stderr”
  1. 2/2 t5536: simplify checking of messages output to stderrRamsay Jones, Feb 24, 2018

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