t1507: assert output of rev-parse

Tests in t1507-rev-parse-upstream.sh compare files "expect" and "actual"
to assert the output of "git rev-parse", "git show", and "git log".
However, two of the tests '@{reflog}-parsing does not look beyond colon'
and '@{upstream}-parsing does not look beyond colon' don't inspect the
contents of the created files.

Assert output of "git rev-parse" in tests in t1507-rev-parse-upstream.sh
to improve test coverage.

Signed-off-by: Andrei Rybak <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: rybak

t/t1507-rev-parse-upstream.sh

@@ -258,15 +258,17 @@ test_expect_success '@{reflog}-parsing does not look beyond colon' '
 	git add @{yesterday} &&
 	git commit -m "funny reflog file" &&
 	git hash-object @{yesterday} >expect &&
-	git rev-parse HEAD:@{yesterday} >actual
+	git rev-parse HEAD:@{yesterday} >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success '@{upstream}-parsing does not look beyond colon' '
 	echo content >@{upstream} &&
 	git add @{upstream} &&
 	git commit -m "funny upstream file" &&
 	git hash-object @{upstream} >expect &&
-	git rev-parse HEAD:@{upstream} >actual
+	git rev-parse HEAD:@{upstream} >actual &&
+	test_cmp expect actual
 '
 
 test_done