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[PATCH 4/6] t1500: avoid setting configuration options outside of tests

From
Eric Sunshine <sunshine@sunshineco.com>
Date
May 10, 2016, 05:20 UTC
Message-ID
<20160510052055.32924-5-sunshine@sunshineco.com>
In-Reply-To
<20160510052055.32924-1-sunshine@sunshineco.com>

Ideally, each test should be responsible for setting up state it needs rather than relying upon transient global state. Toward this end, teach test_rev_parse() to accept a "-b <value>" option to allow callers to set "core.bare" explicitly or undefine it, and take advantage of this new option to avoid setting "core.bare" outside of tests.

Under the hood, "-b <value>" invokes "test_config -C <dir>" (or "test_unconfig -C <dir>"), which means that git-config knows explicitly where to find its configuration file. Consequently, the global GIT_CONFIG environment variable, which was needed by the manual git-config invocations outside of tests, is no longer needed, and is thus dropped.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
---
 t/t1500-rev-parse.sh | 39 ++++++++++++++++++++-------------------
 1 file changed, 20 insertions(+), 19 deletions(-)
diff --git a/t/t1500-rev-parse.sh b/t/t1500-rev-parse.sh
index f294ecc..c058aa4 100755
--- a/t/t1500-rev-parse.sh
+++ b/t/t1500-rev-parse.sh
@@ -6,15 +6,25 @@ test_description='test git rev-parse'
 # usage: [options] label is-bare is-inside-git is-inside-work prefix git-dir
 test_rev_parse () {
 	dir=
+	bare=
 	while :
 	do
 		case "$1" in
 		-C) dir="-C $2"; shift; shift ;;
+		-b) bare="$2"; shift; shift ;;
 		-*) error "test_rev_parse: unrecognized option '$1'" ;;
 		*) break ;;
 		esac
 	done
 
+	case "$bare" in
+	'') ;;
+	t*) bare="test_config $dir core.bare true" ;;
+	f*) bare="test_config $dir core.bare false" ;;
+	u*) bare="test_unconfig $dir core.bare" ;;
+	*) error "test_rev_parse: unrecognized core.bare value '$bare'"
+	esac
+
 	name=$1
 	shift
 
@@ -26,6 +36,7 @@ test_rev_parse () {
 	do
 		expect="$1"
 		test_expect_success "$name: $o" '
+			$bare &&
 			echo "$expect" >expect &&
 			git $dir rev-parse --$o >actual &&
 			test_cmp expect actual
@@ -45,37 +56,27 @@ test_rev_parse -C .git/objects .git/objects/ false true false '' "$ROOT/.git"
 test_expect_success 'setup untracked sub/dir' 'mkdir -p sub/dir'
 test_rev_parse -C sub/dir subdirectory false false true sub/dir/ "$ROOT/.git"
 
-git config core.bare true
-test_rev_parse 'core.bare = true' true false false
+test_rev_parse -b t 'core.bare = true' true false false
 
-git config --unset core.bare
-test_rev_parse 'core.bare undefined' false false true
+test_rev_parse -b u 'core.bare undefined' false false true
 
 test_expect_success 'setup non-local database ../.git' 'mkdir work'
 GIT_DIR=../.git
-GIT_CONFIG="$ROOT/work/../.git/config"
-export GIT_DIR GIT_CONFIG
+export GIT_DIR
 
-git config core.bare false
-test_rev_parse -C work 'GIT_DIR=../.git, core.bare = false' false false true ''
+test_rev_parse -C work -b f 'GIT_DIR=../.git, core.bare = false' false false true ''
 
-git config core.bare true
-test_rev_parse -C work 'GIT_DIR=../.git, core.bare = true' true false false ''
+test_rev_parse -C work -b t 'GIT_DIR=../.git, core.bare = true' true false false ''
 
-git config --unset core.bare
-test_rev_parse -C work 'GIT_DIR=../.git, core.bare undefined' false false true ''
+test_rev_parse -C work -b u 'GIT_DIR=../.git, core.bare undefined' false false true ''
 
 test_expect_success 'setup non-local database ../repo.git' 'mv .git repo.git'
 GIT_DIR=../repo.git
-GIT_CONFIG="$ROOT/work/../repo.git/config"
 
-git config core.bare false
-test_rev_parse -C work 'GIT_DIR=../repo.git, core.bare = false' false false true ''
+test_rev_parse -C work -b f 'GIT_DIR=../repo.git, core.bare = false' false false true ''
 
-git config core.bare true
-test_rev_parse -C work 'GIT_DIR=../repo.git, core.bare = true' true false false ''
+test_rev_parse -C work -b t 'GIT_DIR=../repo.git, core.bare = true' true false false ''
 
-git config --unset core.bare
-test_rev_parse -C work 'GIT_DIR=../repo.git, core.bare undefined' false false true ''
+test_rev_parse -C work -b u 'GIT_DIR=../repo.git, core.bare undefined' false false true ''
 
 test_done
-- 
2.8.2.530.g51d527d
Previous: Eric SunshineNext: Eric Sunshine
Message 5 of 24 in “modernize t1500”
  1. 0/6 modernize t1500Eric Sunshine, May 10, 2016
  2. 1/6 t1500: test_rev_parse: facilitate future test enhancementsEric Sunshine, May 10, 2016
  3. 2/6 t1500: reduce dependence upon global stateEric Sunshine, May 10, 2016
  4. 3/6 t1500: avoid changing working directory outside of testsEric Sunshine, May 10, 2016
  5. 4/6 t1500: avoid setting configuration options outside of testsEric Sunshine, May 10, 2016
  6. Eric SunshineMay 10, 2016
  7. Junio C HamanoMay 10, 2016
  8. 5/6 t1500: avoid setting environment variables outside of testsEric Sunshine, May 10, 2016
  9. Jeff KingMay 10, 2016
  10. Eric SunshineMay 10, 2016
  11. Junio C HamanoMay 10, 2016
  12. Eric SunshineMay 10, 2016
  13. Eric SunshineMay 10, 2016
  14. Jeff KingMay 10, 2016
  15. Junio C HamanoMay 10, 2016
  16. SZEDER GáborMay 10, 2016
  17. Junio C HamanoMay 10, 2016
  18. Eric SunshineMay 10, 2016
  19. 6/6 t1500: be considerate to future potential testsEric Sunshine, May 10, 2016
  20. Junio C HamanoMay 10, 2016
  21. Junio C HamanoMay 10, 2016
  22. Junio C HamanoMay 10, 2016
  23. Eric SunshineMay 16, 2016
  24. Junio C HamanoMay 16, 2016

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