[PATCH 03/10] t6022 (renaming merge): chain test commands with &&

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Using 'return' in an attempt to end a test assertion can have
unpredictable results (probably escaping from test_run_ and breaking
its bookkeeping).  Redo the control flow using helpers like
test_expect_code and git diff --exit-code, so each test assertion can
follow the usual form

	command that should succeed &&
	command that should succeed &&
	command that should succeed &&
	...

Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx>
---
 t/t6022-merge-rename.sh |  282 +++++++++++++++-------------------------------
 1 files changed, 92 insertions(+), 190 deletions(-)

diff --git a/t/t6022-merge-rename.sh b/t/t6022-merge-rename.sh
index b66544b..83efc7a 100755
--- a/t/t6022-merge-rename.sh
+++ b/t/t6022-merge-rename.sh
@@ -94,245 +94,147 @@ git checkout master'
 
 test_expect_success 'pull renaming branch into unrenaming one' \
 '
-	git show-branch
-	git pull . white && {
-		echo "BAD: should have conflicted"
-		return 1
-	}
-	git ls-files -s
-	test "$(git ls-files -u B | wc -l)" -eq 3 || {
-		echo "BAD: should have left stages for B"
-		return 1
-	}
-	test "$(git ls-files -s N | wc -l)" -eq 1 || {
-		echo "BAD: should have merged N"
-		return 1
-	}
+	git show-branch &&
+	test_expect_code 1 git pull . white &&
+	git ls-files -s &&
+	git ls-files -u B >b.stages &&
+	test_line_count = 3 b.stages &&
+	git ls-files -s N >n.stages &&
+	test_line_count = 1 n.stages &&
 	sed -ne "/^g/{
 	p
 	q
-	}" B | grep master || {
-		echo "BAD: should have listed our change first"
-		return 1
-	}
-	test "$(git diff white N | wc -l)" -eq 0 || {
-		echo "BAD: should have taken colored branch"
-		return 1
-	}
+	}" B | grep master &&
+	git diff --exit-code white N
 '
 
 test_expect_success 'pull renaming branch into another renaming one' \
 '
-	rm -f B
-	git reset --hard
-	git checkout red
-	git pull . white && {
-		echo "BAD: should have conflicted"
-		return 1
-	}
-	test "$(git ls-files -u B | wc -l)" -eq 3 || {
-		echo "BAD: should have left stages"
-		return 1
-	}
-	test "$(git ls-files -s N | wc -l)" -eq 1 || {
-		echo "BAD: should have merged N"
-		return 1
-	}
+	rm -f B &&
+	git reset --hard &&
+	git checkout red &&
+	test_expect_code 1 git pull . white &&
+	git ls-files -u B >b.stages &&
+	test_line_count = 3 b.stages &&
+	git ls-files -s N >n.stages &&
+	test_line_count = 1 n.stages &&
 	sed -ne "/^g/{
 	p
 	q
-	}" B | grep red || {
-		echo "BAD: should have listed our change first"
-		return 1
-	}
-	test "$(git diff white N | wc -l)" -eq 0 || {
-		echo "BAD: should have taken colored branch"
-		return 1
-	}
+	}" B | grep red &&
+	git diff --exit-code white N
 '
 
 test_expect_success 'pull unrenaming branch into renaming one' \
 '
-	git reset --hard
-	git show-branch
-	git pull . master && {
-		echo "BAD: should have conflicted"
-		return 1
-	}
-	test "$(git ls-files -u B | wc -l)" -eq 3 || {
-		echo "BAD: should have left stages"
-		return 1
-	}
-	test "$(git ls-files -s N | wc -l)" -eq 1 || {
-		echo "BAD: should have merged N"
-		return 1
-	}
+	git reset --hard &&
+	git show-branch &&
+	test_expect_code 1 git pull . master &&
+	git ls-files -u B >b.stages &&
+	test_line_count = 3 b.stages &&
+	git ls-files -s N >n.stages &&
+	test_line_count = 1 n.stages &&
 	sed -ne "/^g/{
 	p
 	q
-	}" B | grep red || {
-		echo "BAD: should have listed our change first"
-		return 1
-	}
-	test "$(git diff white N | wc -l)" -eq 0 || {
-		echo "BAD: should have taken colored branch"
-		return 1
-	}
+	}" B | grep red &&
+	git diff --exit-code white N
 '
 
 test_expect_success 'pull conflicting renames' \
 '
-	git reset --hard
-	git show-branch
-	git pull . blue && {
-		echo "BAD: should have conflicted"
-		return 1
-	}
-	test "$(git ls-files -u A | wc -l)" -eq 1 || {
-		echo "BAD: should have left a stage"
-		return 1
-	}
-	test "$(git ls-files -u B | wc -l)" -eq 1 || {
-		echo "BAD: should have left a stage"
-		return 1
-	}
-	test "$(git ls-files -u C | wc -l)" -eq 1 || {
-		echo "BAD: should have left a stage"
-		return 1
-	}
-	test "$(git ls-files -s N | wc -l)" -eq 1 || {
-		echo "BAD: should have merged N"
-		return 1
-	}
+	git reset --hard &&
+	git show-branch &&
+	test_expect_code 1 git pull . blue &&
+	git ls-files -u A >a.stages &&
+	test_line_count = 1 a.stages &&
+	git ls-files -u B >b.stages &&
+	test_line_count = 1 b.stages &&
+	git ls-files -u C >c.stages &&
+	test_line_count = 1 c.stages &&
+	git ls-files -s N >n.stages &&
+	test_line_count = 1 n.stages &&
 	sed -ne "/^g/{
 	p
 	q
-	}" B | grep red || {
-		echo "BAD: should have listed our change first"
-		return 1
-	}
-	test "$(git diff white N | wc -l)" -eq 0 || {
-		echo "BAD: should have taken colored branch"
-		return 1
-	}
+	}" B | grep red &&
+	git diff --exit-code white N
 '
 
 test_expect_success 'interference with untracked working tree file' '
-
-	git reset --hard
-	git show-branch
-	echo >A this file should not matter
-	git pull . white && {
-		echo "BAD: should have conflicted"
-		return 1
-	}
-	test -f A || {
-		echo "BAD: should have left A intact"
-		return 1
-	}
+	git reset --hard &&
+	git show-branch &&
+	echo >A this file should not matter &&
+	test_expect_code 1 git pull . white &&
+	test_path_is_file A
 '
 
 test_expect_success 'interference with untracked working tree file' '
-
-	git reset --hard
-	git checkout white
-	git show-branch
-	rm -f A
-	echo >A this file should not matter
-	git pull . red && {
-		echo "BAD: should have conflicted"
-		return 1
-	}
-	test -f A || {
-		echo "BAD: should have left A intact"
-		return 1
-	}
+	git reset --hard &&
+	git checkout white &&
+	git show-branch &&
+	rm -f A &&
+	echo >A this file should not matter &&
+	test_expect_code 1 git pull . red &&
+	test_path_is_file A
 '
 
 test_expect_success 'interference with untracked working tree file' '
-
-	git reset --hard
-	rm -f A M
-	git checkout -f master
-	git tag -f anchor
-	git show-branch
-	git pull . yellow || {
-		echo "BAD: should have cleanly merged"
-		return 1
-	}
-	test -f M && {
-		echo "BAD: should have removed M"
-		return 1
-	}
+	git reset --hard &&
+	rm -f A M &&
+	git checkout -f master &&
+	git tag -f anchor &&
+	git show-branch &&
+	git pull . yellow &&
+	test_path_is_missing M &&
 	git reset --hard anchor
 '
 
 test_expect_success 'updated working tree file should prevent the merge' '
-
-	git reset --hard
-	rm -f A M
-	git checkout -f master
-	git tag -f anchor
-	git show-branch
-	echo >>M one line addition
-	cat M >M.saved
-	git pull . yellow && {
-		echo "BAD: should have complained"
-		return 1
-	}
-	test_cmp M M.saved || {
-		echo "BAD: should have left M intact"
-		return 1
-	}
+	git reset --hard &&
+	rm -f A M &&
+	git checkout -f master &&
+	git tag -f anchor &&
+	git show-branch &&
+	echo >>M one line addition &&
+	cat M >M.saved &&
+	test_expect_code 128 git pull . yellow &&
+	test_cmp M M.saved &&
 	rm -f M.saved
 '
 
 test_expect_success 'updated working tree file should prevent the merge' '
-
-	git reset --hard
-	rm -f A M
-	git checkout -f master
-	git tag -f anchor
-	git show-branch
-	echo >>M one line addition
-	cat M >M.saved
-	git update-index M
-	git pull . yellow && {
-		echo "BAD: should have complained"
-		return 1
-	}
-	test_cmp M M.saved || {
-		echo "BAD: should have left M intact"
-		return 1
-	}
+	git reset --hard &&
+	rm -f A M &&
+	git checkout -f master &&
+	git tag -f anchor &&
+	git show-branch &&
+	echo >>M one line addition &&
+	cat M >M.saved &&
+	git update-index M &&
+	test_expect_code 128 git pull . yellow &&
+	test_cmp M M.saved &&
 	rm -f M.saved
 '
 
 test_expect_success 'interference with untracked working tree file' '
-
-	git reset --hard
-	rm -f A M
-	git checkout -f yellow
-	git tag -f anchor
-	git show-branch
-	echo >M this file should not matter
-	git pull . master || {
-		echo "BAD: should have cleanly merged"
-		return 1
-	}
-	test -f M || {
-		echo "BAD: should have left M intact"
-		return 1
-	}
-	git ls-files -s | grep M && {
-		echo "BAD: M must be untracked in the result"
-		return 1
-	}
+	git reset --hard &&
+	rm -f A M &&
+	git checkout -f yellow &&
+	git tag -f anchor &&
+	git show-branch &&
+	echo >M this file should not matter &&
+	git pull . master &&
+	test_path_is_file M &&
+	! {
+		git ls-files -s |
+		grep M
+	} &&
 	git reset --hard anchor
 '
 
 test_expect_success 'merge of identical changes in a renamed file' '
-	rm -f A M N
+	rm -f A M N &&
 	git reset --hard &&
 	git checkout change+rename &&
 	GIT_MERGE_VERBOSITY=3 git merge change | grep "^Skipped B" &&
-- 
1.7.2.3.557.gab647.dirty

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