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[PATCH 3/6] t1500: avoid changing working directory outside of tests

From
Eric Sunshine <sunshine@sunshineco.com>
Date
May 10, 2016, 05:20 UTC
Message-ID
<20160510052055.32924-4-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 "-C <dir>" option to allow callers to instruct it explicitly in which directory its tests should be run, and take advantage of this new option to avoid changing the working directory outside of tests.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
---
 t/t1500-rev-parse.sh | 44 ++++++++++++++++++++++++--------------------
 1 file changed, 24 insertions(+), 20 deletions(-)
diff --git a/t/t1500-rev-parse.sh b/t/t1500-rev-parse.sh
index 3d79568..f294ecc 100755
--- a/t/t1500-rev-parse.sh
+++ b/t/t1500-rev-parse.sh
@@ -3,8 +3,18 @@
 test_description='test git rev-parse'
 . ./test-lib.sh
 
-# usage: label is-bare is-inside-git is-inside-work prefix git-dir
+# usage: [options] label is-bare is-inside-git is-inside-work prefix git-dir
 test_rev_parse () {
+	dir=
+	while :
+	do
+		case "$1" in
+		-C) dir="-C $2"; shift; shift ;;
+		-*) error "test_rev_parse: unrecognized option '$1'" ;;
+		*) break ;;
+		esac
+	done
+
 	name=$1
 	shift
 
@@ -17,7 +27,7 @@ test_rev_parse () {
 		expect="$1"
 		test_expect_success "$name: $o" '
 			echo "$expect" >expect &&
-			git rev-parse --$o >actual &&
+			git $dir rev-parse --$o >actual &&
 			test_cmp expect actual
 		'
 		shift
@@ -29,16 +39,11 @@ ROOT=$(pwd)
 
 test_rev_parse toplevel false false true '' .git
 
-cd .git || exit 1
-test_rev_parse .git/ false true false '' .
-cd objects || exit 1
-test_rev_parse .git/objects/ false true false '' "$ROOT/.git"
-cd ../.. || exit 1
+test_rev_parse -C .git .git/ false true false '' .
+test_rev_parse -C .git/objects .git/objects/ false true false '' "$ROOT/.git"
 
-mkdir -p sub/dir || exit 1
-cd sub/dir || exit 1
-test_rev_parse subdirectory false false true sub/dir/ "$ROOT/.git"
-cd ../.. || exit 1
+test_expect_success 'setup untracked sub/dir' 'mkdir -p sub/dir'
+test_rev_parse -C sub/dir subdirectory false false true sub/dir/ "$ROOT/.git"
 
 git config core.bare true
 test_rev_parse 'core.bare = true' true false false
@@ -46,32 +51,31 @@ test_rev_parse 'core.bare = true' true false false
 git config --unset core.bare
 test_rev_parse 'core.bare undefined' false false true
 
-mkdir work || exit 1
-cd work || exit 1
+test_expect_success 'setup non-local database ../.git' 'mkdir work'
 GIT_DIR=../.git
 GIT_CONFIG="$ROOT/work/../.git/config"
 export GIT_DIR GIT_CONFIG
 
 git config core.bare false
-test_rev_parse 'GIT_DIR=../.git, core.bare = false' false false true ''
+test_rev_parse -C work 'GIT_DIR=../.git, core.bare = false' false false true ''
 
 git config core.bare true
-test_rev_parse 'GIT_DIR=../.git, core.bare = true' true false false ''
+test_rev_parse -C work 'GIT_DIR=../.git, core.bare = true' true false false ''
 
 git config --unset core.bare
-test_rev_parse 'GIT_DIR=../.git, core.bare undefined' false false true ''
+test_rev_parse -C work 'GIT_DIR=../.git, core.bare undefined' false false true ''
 
-mv ../.git ../repo.git || exit 1
+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 'GIT_DIR=../repo.git, core.bare = false' false false true ''
+test_rev_parse -C work 'GIT_DIR=../repo.git, core.bare = false' false false true ''
 
 git config core.bare true
-test_rev_parse 'GIT_DIR=../repo.git, core.bare = true' true false false ''
+test_rev_parse -C work 'GIT_DIR=../repo.git, core.bare = true' true false false ''
 
 git config --unset core.bare
-test_rev_parse 'GIT_DIR=../repo.git, core.bare undefined' false false true ''
+test_rev_parse -C work 'GIT_DIR=../repo.git, core.bare undefined' false false true ''
 
 test_done
-- 
2.8.2.530.g51d527d
Previous: Eric SunshineNext: Eric Sunshine
Message 4 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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