completion, bash prompt: move __gitdir() tests to completion test suite

Currently __gitdir() is duplicated in the git completion and prompt
scripts, while its tests are in the prompt test suite.  This patch
series is about to change __git_ps1() in a way that it won't need
__gitdir() anymore and __gitdir() will be removed from the prompt
script.

So move all __gitdir() tests from the prompt test suite over to the
completion test suite.  Update the setup tests so that they perform
only those steps that are necessary for each test suite.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>

1 files changed, 134 insertions, 0 deletions

diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 81a1657efb..5469dee8d1 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -122,6 +122,140 @@ test_gitcomp_nl ()
 
 invalid_variable_name='${foo.bar}'
 
+actual="$TRASH_DIRECTORY/actual"
+
+test_expect_success 'setup for __gitdir tests' '
+	mkdir -p subdir/subsubdir &&
+	git init otherrepo
+'
+
+test_expect_success '__gitdir - from command line (through $__git_dir)' '
+	echo "$TRASH_DIRECTORY/otherrepo/.git" >expected &&
+	(
+		__git_dir="$TRASH_DIRECTORY/otherrepo/.git" &&
+		__gitdir >"$actual"
+	) &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success '__gitdir - repo as argument' '
+	echo "otherrepo/.git" >expected &&
+	__gitdir "otherrepo" >"$actual" &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success '__gitdir - remote as argument' '
+	echo "remote" >expected &&
+	__gitdir "remote" >"$actual" &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success '__gitdir - .git directory in cwd' '
+	echo ".git" >expected &&
+	__gitdir >"$actual" &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success '__gitdir - .git directory in parent' '
+	echo "$(pwd -P)/.git" >expected &&
+	(
+		cd subdir/subsubdir &&
+		__gitdir >"$actual"
+	) &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success '__gitdir - cwd is a .git directory' '
+	echo "." >expected &&
+	(
+		cd .git &&
+		__gitdir >"$actual"
+	) &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success '__gitdir - parent is a .git directory' '
+	echo "$(pwd -P)/.git" >expected &&
+	(
+		cd .git/refs/heads &&
+		__gitdir >"$actual"
+	) &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success '__gitdir - $GIT_DIR set while .git directory in cwd' '
+	echo "$TRASH_DIRECTORY/otherrepo/.git" >expected &&
+	(
+		GIT_DIR="$TRASH_DIRECTORY/otherrepo/.git" &&
+		export GIT_DIR &&
+		__gitdir >"$actual"
+	) &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success '__gitdir - $GIT_DIR set while .git directory in parent' '
+	echo "$TRASH_DIRECTORY/otherrepo/.git" >expected &&
+	(
+		GIT_DIR="$TRASH_DIRECTORY/otherrepo/.git" &&
+		export GIT_DIR &&
+		cd subdir &&
+		__gitdir >"$actual"
+	) &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success '__gitdir - non-existing $GIT_DIR' '
+	(
+		GIT_DIR="$TRASH_DIRECTORY/non-existing" &&
+		export GIT_DIR &&
+		test_must_fail __gitdir
+	)
+'
+
+test_expect_success '__gitdir - gitfile in cwd' '
+	echo "$(pwd -P)/otherrepo/.git" >expected &&
+	echo "gitdir: $TRASH_DIRECTORY/otherrepo/.git" >subdir/.git &&
+	test_when_finished "rm -f subdir/.git" &&
+	(
+		cd subdir &&
+		__gitdir >"$actual"
+	) &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success '__gitdir - gitfile in parent' '
+	echo "$(pwd -P)/otherrepo/.git" >expected &&
+	echo "gitdir: $TRASH_DIRECTORY/otherrepo/.git" >subdir/.git &&
+	test_when_finished "rm -f subdir/.git" &&
+	(
+		cd subdir/subsubdir &&
+		__gitdir >"$actual"
+	) &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success SYMLINKS '__gitdir - resulting path avoids symlinks' '
+	echo "$(pwd -P)/otherrepo/.git" >expected &&
+	mkdir otherrepo/dir &&
+	test_when_finished "rm -rf otherrepo/dir" &&
+	ln -s otherrepo/dir link &&
+	test_when_finished "rm -f link" &&
+	(
+		cd link &&
+		__gitdir >"$actual"
+	) &&
+	test_cmp expected "$actual"
+'
+
+test_expect_success '__gitdir - not a git repository' '
+	(
+		cd subdir/subsubdir &&
+		GIT_CEILING_DIRECTORIES="$TRASH_DIRECTORY" &&
+		export GIT_CEILING_DIRECTORIES &&
+		test_must_fail __gitdir
+	)
+'
+
 test_expect_success '__gitcomp - trailing space - options' '
 	test_gitcomp "--re" "--dry-run --reuse-message= --reedit-message=
 		--reset-author" <<-EOF