[v2,02/15] t: teach test_cmp_rev to accept ! for not-equals
diff mbox series

Message ID 417e808466ee3e61a1719faa319fe0e796d5d271.1571435195.git.liu.denton@gmail.com
State New
Headers show
Series
  • t5520: various test cleanup
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Commit Message

Denton Liu Oct. 18, 2019, 10:10 p.m. UTC
Currently, in the case where we are using test_cmp_rev() to report
not-equals, we write `! test_cmp_rev`. However, since test_cmp_rev()
contains

	r1=$(git rev-parse --verify "$1") &&
	r2=$(git rev-parse --verify "$2") &&

In the case where `git rev-parse` segfaults and dies unexpectedly, the
failure will be ignored.

Rewrite test_cmp_rev() to optionally accept "!" as the first argument to
do a not-equals comparison. Rewrite `! test_cmp_rev` to `test_cmp_rev !`
in all tests to take advantage of this new functionality.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
---
 t/t2400-worktree-add.sh             |  4 ++--
 t/t3400-rebase.sh                   |  2 +-
 t/t3421-rebase-topology-linear.sh   |  6 +++---
 t/t3430-rebase-merges.sh            |  2 +-
 t/t3432-rebase-fast-forward.sh      |  2 +-
 t/t3501-revert-cherry-pick.sh       |  2 +-
 t/t3508-cherry-pick-many-commits.sh |  2 +-
 t/test-lib-functions.sh             | 13 +++++++++++--
 8 files changed, 21 insertions(+), 12 deletions(-)

Comments

SZEDER Gábor Oct. 18, 2019, 10:45 p.m. UTC | #1
On Fri, Oct 18, 2019 at 03:10:21PM -0700, Denton Liu wrote:
> Currently, in the case where we are using test_cmp_rev() to report
> not-equals, we write `! test_cmp_rev`. However, since test_cmp_rev()
> contains
> 
> 	r1=$(git rev-parse --verify "$1") &&
> 	r2=$(git rev-parse --verify "$2") &&
> 
> In the case where `git rev-parse` segfaults and dies unexpectedly, the
> failure will be ignored.
> 
> Rewrite test_cmp_rev() to optionally accept "!" as the first argument to
> do a not-equals comparison. Rewrite `! test_cmp_rev` to `test_cmp_rev !`
> in all tests to take advantage of this new functionality.
> 
> Signed-off-by: Denton Liu <liu.denton@gmail.com>


> diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
> index b299ecc326..76dce5f8ee 100644
> --- a/t/test-lib-functions.sh
> +++ b/t/test-lib-functions.sh
> @@ -1012,8 +1012,17 @@ test_must_be_empty () {
>  	fi
>  }
>  
> -# Tests that its two parameters refer to the same revision
> +# Tests that its two parameters refer to the same revision, or if '!' is
> +# provided first, that its other two parameters refer to different
> +# revisions.
>  test_cmp_rev () {
> +	local inverted_op
> +	inverted_op='!='
> +	if test $# -ge 1 && test "x$1" = 'x!'
> +	then
> +	    inverted_op='='
> +	    shift
> +	fi
>  	if test $# != 2
>  	then
>  		error "bug in the test script: test_cmp_rev requires two revisions, but got $#"
> @@ -1021,7 +1030,7 @@ test_cmp_rev () {
>  		local r1 r2
>  		r1=$(git rev-parse --verify "$1") &&
>  		r2=$(git rev-parse --verify "$2") &&
> -		if test "$r1" != "$r2"
> +		if test "$r1" "$inverted_op" "$r2"
>  		then
>  			cat >&4 <<-EOF
>  			error: two revisions point to different objects:

A semi-rhetorical question: how will the output of 'test_cmp_rev ! HEAD
HEAD' look like? :)

Patch
diff mbox series

diff --git a/t/t2400-worktree-add.sh b/t/t2400-worktree-add.sh
index e819ba741e..52d476979b 100755
--- a/t/t2400-worktree-add.sh
+++ b/t/t2400-worktree-add.sh
@@ -438,7 +438,7 @@  test_expect_success 'git worktree add does not match remote' '
 		cd foo &&
 		test_must_fail git config "branch.foo.remote" &&
 		test_must_fail git config "branch.foo.merge" &&
-		! test_cmp_rev refs/remotes/repo_a/foo refs/heads/foo
+		test_cmp_rev ! refs/remotes/repo_a/foo refs/heads/foo
 	)
 '
 
@@ -483,7 +483,7 @@  test_expect_success 'git worktree --no-guess-remote option overrides config' '
 		cd foo &&
 		test_must_fail git config "branch.foo.remote" &&
 		test_must_fail git config "branch.foo.merge" &&
-		! test_cmp_rev refs/remotes/repo_a/foo refs/heads/foo
+		test_cmp_rev ! refs/remotes/repo_a/foo refs/heads/foo
 	)
 '
 
diff --git a/t/t3400-rebase.sh b/t/t3400-rebase.sh
index ab18ac5f28..f267f6cd54 100755
--- a/t/t3400-rebase.sh
+++ b/t/t3400-rebase.sh
@@ -64,7 +64,7 @@  test_expect_success 'rebase sets ORIG_HEAD to pre-rebase state' '
 	pre="$(git rev-parse --verify HEAD)" &&
 	git rebase master &&
 	test_cmp_rev "$pre" ORIG_HEAD &&
-	! test_cmp_rev "$pre" HEAD
+	test_cmp_rev ! "$pre" HEAD
 '
 
 test_expect_success 'rebase, with <onto> and <upstream> specified as :/quuxery' '
diff --git a/t/t3421-rebase-topology-linear.sh b/t/t3421-rebase-topology-linear.sh
index b847064f91..325072b0a3 100755
--- a/t/t3421-rebase-topology-linear.sh
+++ b/t/t3421-rebase-topology-linear.sh
@@ -61,7 +61,7 @@  test_run_rebase () {
 	test_expect_$result "rebase $* -f rewrites even if upstream is an ancestor" "
 		reset_rebase &&
 		git rebase $* -f b e &&
-		! test_cmp_rev e HEAD &&
+		test_cmp_rev ! e HEAD &&
 		test_cmp_rev b HEAD~2 &&
 		test_linear_range 'd e' b..
 	"
@@ -78,7 +78,7 @@  test_run_rebase () {
 	test_expect_$result "rebase $* -f rewrites even if remote upstream is an ancestor" "
 		reset_rebase &&
 		git rebase $* -f branch-b branch-e &&
-		! test_cmp_rev branch-e origin/branch-e &&
+		test_cmp_rev ! branch-e origin/branch-e &&
 		test_cmp_rev branch-b HEAD~2 &&
 		test_linear_range 'd e' branch-b..
 	"
@@ -368,7 +368,7 @@  test_run_rebase () {
 	test_expect_$result "rebase $* -f --root on linear history causes re-write" "
 		reset_rebase &&
 		git rebase $* -f --root c &&
-		! test_cmp_rev a HEAD~2 &&
+		test_cmp_rev ! a HEAD~2 &&
 		test_linear_range 'a b c' HEAD
 	"
 }
diff --git a/t/t3430-rebase-merges.sh b/t/t3430-rebase-merges.sh
index 9efcf4808a..abbdc26b1b 100755
--- a/t/t3430-rebase-merges.sh
+++ b/t/t3430-rebase-merges.sh
@@ -346,7 +346,7 @@  test_expect_success 'A root commit can be a cousin, treat it that way' '
 	git merge --allow-unrelated-histories khnum &&
 	test_tick &&
 	git rebase -f -r HEAD^ &&
-	! test_cmp_rev HEAD^2 khnum &&
+	test_cmp_rev ! HEAD^2 khnum &&
 	test_cmp_graph HEAD^.. <<-\EOF &&
 	*   Merge branch '\''khnum'\'' into asherah
 	|\
diff --git a/t/t3432-rebase-fast-forward.sh b/t/t3432-rebase-fast-forward.sh
index 034ffc7e76..92f95b57da 100755
--- a/t/t3432-rebase-fast-forward.sh
+++ b/t/t3432-rebase-fast-forward.sh
@@ -64,7 +64,7 @@  test_rebase_same_head_ () {
 			test_cmp_rev \$oldhead \$newhead
 		elif test $cmp = diff
 		then
-			! test_cmp_rev \$oldhead \$newhead
+			test_cmp_rev ! \$oldhead \$newhead
 		fi
 	"
 }
diff --git a/t/t3501-revert-cherry-pick.sh b/t/t3501-revert-cherry-pick.sh
index d1c68af8c5..1c51a9131d 100755
--- a/t/t3501-revert-cherry-pick.sh
+++ b/t/t3501-revert-cherry-pick.sh
@@ -106,7 +106,7 @@  test_expect_success 'cherry-pick on unborn branch' '
 	rm -rf * &&
 	git cherry-pick initial &&
 	git diff --quiet initial &&
-	! test_cmp_rev initial HEAD
+	test_cmp_rev ! initial HEAD
 '
 
 test_expect_success 'cherry-pick "-" to pick from previous branch' '
diff --git a/t/t3508-cherry-pick-many-commits.sh b/t/t3508-cherry-pick-many-commits.sh
index b457333e18..23070a7b73 100755
--- a/t/t3508-cherry-pick-many-commits.sh
+++ b/t/t3508-cherry-pick-many-commits.sh
@@ -5,7 +5,7 @@  test_description='test cherry-picking many commits'
 . ./test-lib.sh
 
 check_head_differs_from() {
-	! test_cmp_rev HEAD "$1"
+	test_cmp_rev ! HEAD "$1"
 }
 
 check_head_equals() {
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index b299ecc326..76dce5f8ee 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -1012,8 +1012,17 @@  test_must_be_empty () {
 	fi
 }
 
-# Tests that its two parameters refer to the same revision
+# Tests that its two parameters refer to the same revision, or if '!' is
+# provided first, that its other two parameters refer to different
+# revisions.
 test_cmp_rev () {
+	local inverted_op
+	inverted_op='!='
+	if test $# -ge 1 && test "x$1" = 'x!'
+	then
+	    inverted_op='='
+	    shift
+	fi
 	if test $# != 2
 	then
 		error "bug in the test script: test_cmp_rev requires two revisions, but got $#"
@@ -1021,7 +1030,7 @@  test_cmp_rev () {
 		local r1 r2
 		r1=$(git rev-parse --verify "$1") &&
 		r2=$(git rev-parse --verify "$2") &&
-		if test "$r1" != "$r2"
+		if test "$r1" "$inverted_op" "$r2"
 		then
 			cat >&4 <<-EOF
 			error: two revisions point to different objects: