t7501: always use test_cmp instead of diff

This should make the output more readable (by default using diff -u)
when some tests fail.

Also changed the diff order from "current expected" to "expected
current".

Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t7501-commit.sh b/t/t7501-commit.sh
index 469bff8873534e247205926dfb4919800457ca1e..63bfc6d8b3f6917cad1b51a73a84ba61762b220d 100755 (executable)
--- a/t/t7501-commit.sh
+++ b/t/t7501-commit.sh
@@ -141,7 +141,7 @@ EOF
 
 test_expect_success \
     'validate git rev-list output.' \
-    'diff current expected'
+    'test_cmp expected current'
 
 test_expect_success 'partial commit that involves removal (1)' '
 
@@ -151,7 +151,7 @@ test_expect_success 'partial commit that involves removal (1)' '
        git commit -m "Partial: add elif" elif &&
        git diff-tree --name-status HEAD^ HEAD >current &&
        echo "A elif" >expected &&
-       diff expected current
+       test_cmp expected current
 
 '
 
@@ -160,7 +160,7 @@ test_expect_success 'partial commit that involves removal (2)' '
        git commit -m "Partial: remove file" file &&
        git diff-tree --name-status HEAD^ HEAD >current &&
        echo "D file" >expected &&
-       diff expected current
+       test_cmp expected current
 
 '
 
@@ -171,7 +171,7 @@ test_expect_success 'partial commit that involves removal (3)' '
        git commit -m "Partial: modify elif" elif &&
        git diff-tree --name-status HEAD^ HEAD >current &&
        echo "M elif" >expected &&
-       diff expected current
+       test_cmp expected current
 
 '
 
@@ -187,7 +187,7 @@ test_expect_success 'amend commit to fix author' '
                expected &&
        git commit --amend --author="$author" &&
        git cat-file -p HEAD > current &&
-       diff expected current
+       test_cmp expected current
 
 '
 
@@ -256,7 +256,7 @@ test_expect_success 'amend commit to fix author' '
                expected &&
        git commit --amend --author="$author" &&
        git cat-file -p HEAD > current &&
-       diff expected current
+       test_cmp expected current
 
 '