tests: fix diff order arguments in test_cmp

Fix the argument order for test_cmp. When given the expected
result first the diff shows the actual output with '+' and the
expectation with '-', which is the convention for our tests.

Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t1004-read-tree-m-u-wf.sh

@@ -218,7 +218,7 @@ test_expect_success 'D/F' '
 		echo "100644 $a 2	subdir/file2"
 		echo "100644 $b 3	subdir/file2/another"
 	) >expect &&
-	test_cmp actual expect
+	test_cmp expect actual
 
 '
 

t/t4015-diff-whitespace.sh

@@ -155,7 +155,7 @@ test_expect_success 'ignore-blank-lines: only new lines' '
 " >x &&
 	git diff --ignore-blank-lines >out &&
 	>expect &&
-	test_cmp out expect
+	test_cmp expect out
 '
 
 test_expect_success 'ignore-blank-lines: only new lines with space' '
@@ -165,7 +165,7 @@ test_expect_success 'ignore-blank-lines: only new lines with space' '
  " >x &&
 	git diff -w --ignore-blank-lines >out &&
 	>expect &&
-	test_cmp out expect
+	test_cmp expect out
 '
 
 test_expect_success 'ignore-blank-lines: after change' '

t/t4205-log-pretty-formats.sh

@@ -590,7 +590,7 @@ test_expect_success '%(trailers:unfold) unfolds trailers' '
 test_expect_success ':only and :unfold work together' '
 	git log --no-walk --pretty="%(trailers:only:unfold)" >actual &&
 	git log --no-walk --pretty="%(trailers:unfold:only)" >reverse &&
-	test_cmp actual reverse &&
+	test_cmp reverse actual &&
 	{
 		grep -v patch.description <trailers | unfold &&
 		echo

t/t6007-rev-list-cherry-pick-file.sh

@@ -57,7 +57,7 @@ test_expect_success '--left-right' '
 	git rev-list --left-right B...C > actual &&
 	git name-rev --stdin --name-only --refs="*tags/*" \
 		< actual > actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 test_expect_success '--count' '
@@ -77,14 +77,14 @@ test_expect_success '--cherry-pick bar does not come up empty' '
 	git rev-list --left-right --cherry-pick B...C -- bar > actual &&
 	git name-rev --stdin --name-only --refs="*tags/*" \
 		< actual > actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 test_expect_success 'bar does not come up empty' '
 	git rev-list --left-right B...C -- bar > actual &&
 	git name-rev --stdin --name-only --refs="*tags/*" \
 		< actual > actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 cat >expect <<EOF
@@ -96,14 +96,14 @@ test_expect_success '--cherry-pick bar does not come up empty (II)' '
 	git rev-list --left-right --cherry-pick F...E -- bar > actual &&
 	git name-rev --stdin --name-only --refs="*tags/*" \
 		< actual > actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 test_expect_success 'name-rev multiple --refs combine inclusive' '
 	git rev-list --left-right --cherry-pick F...E -- bar >actual &&
 	git name-rev --stdin --name-only --refs="*tags/F" --refs="*tags/E" \
 		<actual >actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 cat >expect <<EOF
@@ -115,7 +115,7 @@ test_expect_success 'name-rev --refs excludes non-matched patterns' '
 	git rev-list --left-right --cherry-pick F...E -- bar >actual &&
 	git name-rev --stdin --name-only --refs="*tags/F" \
 		<actual >actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 cat >expect <<EOF
@@ -127,14 +127,14 @@ test_expect_success 'name-rev --exclude excludes matched patterns' '
 	git rev-list --left-right --cherry-pick F...E -- bar >actual &&
 	git name-rev --stdin --name-only --refs="*tags/*" --exclude="*E" \
 		<actual >actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 test_expect_success 'name-rev --no-refs clears the refs list' '
 	git rev-list --left-right --cherry-pick F...E -- bar >expect &&
 	git name-rev --stdin --name-only --refs="*tags/F" --refs="*tags/E" --no-refs --refs="*tags/G" \
 		<expect >actual &&
-	test_cmp actual expect
+	test_cmp expect actual
 '
 
 cat >expect <<EOF
@@ -148,7 +148,7 @@ test_expect_success '--cherry-mark' '
 	git rev-list --cherry-mark F...E -- bar > actual &&
 	git name-rev --stdin --name-only --refs="*tags/*" \
 		< actual > actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 cat >expect <<EOF
@@ -162,7 +162,7 @@ test_expect_success '--cherry-mark --left-right' '
 	git rev-list --cherry-mark --left-right F...E -- bar > actual &&
 	git name-rev --stdin --name-only --refs="*tags/*" \
 		< actual > actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 cat >expect <<EOF
@@ -173,14 +173,14 @@ test_expect_success '--cherry-pick --right-only' '
 	git rev-list --cherry-pick --right-only F...E -- bar > actual &&
 	git name-rev --stdin --name-only --refs="*tags/*" \
 		< actual > actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 test_expect_success '--cherry-pick --left-only' '
 	git rev-list --cherry-pick --left-only E...F -- bar > actual &&
 	git name-rev --stdin --name-only --refs="*tags/*" \
 		< actual > actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 cat >expect <<EOF
@@ -192,7 +192,7 @@ test_expect_success '--cherry' '
 	git rev-list --cherry F...E -- bar > actual &&
 	git name-rev --stdin --name-only --refs="*tags/*" \
 		< actual > actual.named &&
-	test_cmp actual.named expect
+	test_cmp expect actual.named
 '
 
 cat >expect <<EOF
@@ -201,7 +201,7 @@ EOF
 
 test_expect_success '--cherry --count' '
 	git rev-list --cherry --count F...E -- bar > actual &&
-	test_cmp actual expect
+	test_cmp expect actual
 '
 
 cat >expect <<EOF
@@ -210,7 +210,7 @@ EOF
 
 test_expect_success '--cherry-mark --count' '
 	git rev-list --cherry-mark --count F...E -- bar > actual &&
-	test_cmp actual expect
+	test_cmp expect actual
 '
 
 cat >expect <<EOF
@@ -219,7 +219,7 @@ EOF
 
 test_expect_success '--cherry-mark --left-right --count' '
 	git rev-list --cherry-mark --left-right --count F...E -- bar > actual &&
-	test_cmp actual expect
+	test_cmp expect actual
 '
 
 test_expect_success '--cherry-pick with independent, but identical branches' '

t/t6013-rev-list-reverse-parents.sh

@@ -28,7 +28,7 @@ test_expect_success '--reverse --parents --full-history combines correctly' '
 		perl -e "print reverse <>" > expected &&
 	git rev-list --reverse --parents --full-history master -- foo \
 		> actual &&
-	test_cmp actual expected
+	test_cmp expected actual
 	'
 
 test_expect_success '--boundary does too' '
@@ -36,7 +36,7 @@ test_expect_success '--boundary does too' '
 		perl -e "print reverse <>" > expected &&
 	git rev-list --boundary --reverse --parents --full-history \
 		master ^root -- foo > actual &&
-	test_cmp actual expected
+	test_cmp expected actual
 	'
 
 test_done

t/t7001-mv.sh

@@ -488,7 +488,7 @@ test_expect_success 'moving a submodule in nested directories' '
 		git config -f ../.gitmodules submodule.deep/directory/hierarchy/sub.path >../actual &&
 		echo "directory/hierarchy/sub" >../expect
 	) &&
-	test_cmp actual expect
+	test_cmp expect actual
 '
 
 test_expect_failure 'moving nested submodules' '

t/t7005-editor.sh

@@ -38,7 +38,7 @@ test_expect_success setup '
 	test_commit "$msg" &&
 	echo "$msg" >expect &&
 	git show -s --format=%s > actual &&
-	test_cmp actual expect
+	test_cmp expect actual
 
 '
 
@@ -85,7 +85,7 @@ do
 		git --exec-path=. commit --amend &&
 		git show -s --pretty=oneline |
 		sed -e "s/^[0-9a-f]* //" >actual &&
-		test_cmp actual expect
+		test_cmp expect actual
 	'
 done
 
@@ -107,7 +107,7 @@ do
 		git --exec-path=. commit --amend &&
 		git show -s --pretty=oneline |
 		sed -e "s/^[0-9a-f]* //" >actual &&
-		test_cmp actual expect
+		test_cmp expect actual
 	'
 done
 

t/t7102-reset.sh

@@ -428,9 +428,9 @@ test_expect_success 'test --mixed <paths>' '
 	git reset HEAD -- file1 file2 file3 &&
 	test_must_fail git diff --quiet &&
 	git diff > output &&
-	test_cmp output expect &&
+	test_cmp expect output &&
 	git diff --cached > output &&
-	test_cmp output cached_expect
+	test_cmp cached_expect output
 '
 
 test_expect_success 'test resetting the index at give paths' '

t/t7201-co.sh

@@ -187,7 +187,7 @@ test_expect_success 'format of merge conflict from checkout -m' '
 	d
 	>>>>>>> local
 	EOF
-	test_cmp two expect
+	test_cmp expect two
 '
 
 test_expect_success 'checkout --merge --conflict=diff3 <branch>' '
@@ -213,7 +213,7 @@ test_expect_success 'checkout --merge --conflict=diff3 <branch>' '
 	d
 	>>>>>>> local
 	EOF
-	test_cmp two expect
+	test_cmp expect two
 '
 
 test_expect_success 'switch to another branch while carrying a deletion' '

t/t7400-submodule-basic.sh

@@ -1211,7 +1211,7 @@ test_expect_success 'clone --recurse-submodules with a pathspec works' '
 
 	git clone --recurse-submodules="sub0" multisuper multisuper_clone &&
 	git -C multisuper_clone submodule status |cut -c1,43- >actual &&
-	test_cmp actual expected
+	test_cmp expected actual
 '
 
 test_expect_success 'clone with multiple --recurse-submodules options' '

t/t7405-submodule-merge.sh

@@ -119,7 +119,7 @@ test_expect_success 'merge with one side as a fast-forward of the other' '
 	 git ls-tree test-forward sub | cut -f1 | cut -f3 -d" " > actual &&
 	 (cd sub &&
 	  git rev-parse sub-d > ../expect) &&
-	 test_cmp actual expect)
+	 test_cmp expect actual)
 '
 
 test_expect_success 'merging should conflict for non fast-forward' '

t/t7506-status-submodule.sh

@@ -306,7 +306,7 @@ test_expect_success 'diff with merge conflict in .gitmodules' '
 		cd super &&
 		git diff >../diff_actual 2>&1
 	) &&
-	test_cmp diff_actual diff_expect
+	test_cmp diff_expect diff_actual
 '
 
 test_expect_success 'diff --submodule with merge conflict in .gitmodules' '
@@ -314,7 +314,7 @@ test_expect_success 'diff --submodule with merge conflict in .gitmodules' '
 		cd super &&
 		git diff --submodule >../diff_submodule_actual 2>&1
 	) &&
-	test_cmp diff_submodule_actual diff_submodule_expect
+	test_cmp diff_submodule_expect diff_submodule_actual
 '
 
 # We'll setup different cases for further testing:

t/t7600-merge.sh

@@ -697,7 +697,7 @@ test_expect_success 'merge --no-ff --edit' '
 	git cat-file commit HEAD >raw &&
 	grep "work done on the side branch" raw &&
 	sed "1,/^$/d" >actual raw &&
-	test_cmp actual expected
+	test_cmp expected actual
 '
 
 test_expect_success GPG 'merge --ff-only tag' '
@@ -709,7 +709,7 @@ test_expect_success GPG 'merge --ff-only tag' '
 	git merge --ff-only signed &&
 	git rev-parse signed^0 >expect &&
 	git rev-parse HEAD >actual &&
-	test_cmp actual expect
+	test_cmp expect actual
 '
 
 test_expect_success GPG 'merge --no-edit tag should skip editor' '
@@ -721,7 +721,7 @@ test_expect_success GPG 'merge --no-edit tag should skip editor' '
 	EDITOR=false git merge --no-edit signed &&
 	git rev-parse signed^0 >expect &&
 	git rev-parse HEAD^2 >actual &&
-	test_cmp actual expect
+	test_cmp expect actual
 '
 
 test_expect_success 'set up mod-256 conflict scenario' '

t/t7610-mergetool.sh

@@ -621,7 +621,7 @@ test_expect_success 'file with no base' '
 	test_must_fail git merge master &&
 	git mergetool --no-prompt --tool mybase -- both &&
 	>expected &&
-	test_cmp both expected
+	test_cmp expected both
 '
 
 test_expect_success 'custom commands override built-ins' '
@@ -632,7 +632,7 @@ test_expect_success 'custom commands override built-ins' '
 	test_must_fail git merge master &&
 	git mergetool --no-prompt --tool defaults -- both &&
 	echo master both added >expected &&
-	test_cmp both expected
+	test_cmp expected both
 '
 
 test_expect_success 'filenames seen by tools start with ./' '

t/t9001-send-email.sh

@@ -1266,7 +1266,7 @@ test_expect_success $PREREQ 'asks about and fixes 8bit encodings' '
 	grep email-using-8bit stdout &&
 	grep "Which 8bit encoding" stdout &&
 	egrep "Content|MIME" msgtxt1 >actual &&
-	test_cmp actual content-type-decl
+	test_cmp content-type-decl actual
 '
 
 test_expect_success $PREREQ 'sendemail.8bitEncoding works' '
@@ -1277,7 +1277,7 @@ test_expect_success $PREREQ 'sendemail.8bitEncoding works' '
 			--smtp-server="$(pwd)/fake.sendmail" \
 			email-using-8bit >stdout &&
 	egrep "Content|MIME" msgtxt1 >actual &&
-	test_cmp actual content-type-decl
+	test_cmp content-type-decl actual
 '
 
 test_expect_success $PREREQ '--8bit-encoding overrides sendemail.8bitEncoding' '
@@ -1289,7 +1289,7 @@ test_expect_success $PREREQ '--8bit-encoding overrides sendemail.8bitEncoding' '
 			--8bit-encoding=UTF-8 \
 			email-using-8bit >stdout &&
 	egrep "Content|MIME" msgtxt1 >actual &&
-	test_cmp actual content-type-decl
+	test_cmp content-type-decl actual
 '
 
 test_expect_success $PREREQ 'setup expect' '