t1006: update 'run_tests' to test generic object specifiers

Update the 'run_tests' test wrapper so that the first argument may refer to
any specifier that uniquely identifies an object (e.g. a ref name,
'<OID>:<path>', '<OID>^{<type>}', etc.), rather than only a full object ID.

Also add tests that use non-OID identifiers, ensuring appropriate parsing in
'cat-file'. The identifiers used in some of the added tests include a space,
which is incompatible with the '%(rest)' atom. To accommodate that without
removing the test case, use 'test_expect_failure' when 'object_name'
includes a space.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: vdye

t/t1006-cat-file.sh

@@ -113,53 +113,54 @@ strlen () {
 
 run_tests () {
     type=$1
-    oid=$2
+    object_name="$2"
     size=$3
     content=$4
     pretty_content=$5
+    oid=${6:-"$object_name"}
 
     batch_output="$oid $type $size
 $content"
 
     test_expect_success "$type exists" '
-	git cat-file -e $oid
+	git cat-file -e "$object_name"
     '
 
     test_expect_success "Type of $type is correct" '
 	echo $type >expect &&
-	git cat-file -t $oid >actual &&
+	git cat-file -t "$object_name" >actual &&
 	test_cmp expect actual
     '
 
     test_expect_success "Size of $type is correct" '
 	echo $size >expect &&
-	git cat-file -s $oid >actual &&
+	git cat-file -s "$object_name" >actual &&
 	test_cmp expect actual
     '
 
     test -z "$content" ||
     test_expect_success "Content of $type is correct" '
 	echo_without_newline "$content" >expect &&
-	git cat-file $type $oid >actual &&
+	git cat-file $type "$object_name" >actual &&
 	test_cmp expect actual
     '
 
     test_expect_success "Pretty content of $type is correct" '
 	echo_without_newline "$pretty_content" >expect &&
-	git cat-file -p $oid >actual &&
+	git cat-file -p "$object_name" >actual &&
 	test_cmp expect actual
     '
 
     test -z "$content" ||
     test_expect_success "--batch output of $type is correct" '
 	echo "$batch_output" >expect &&
-	echo $oid | git cat-file --batch >actual &&
+	echo "$object_name" | git cat-file --batch >actual &&
 	test_cmp expect actual
     '
 
     test_expect_success "--batch-check output of $type is correct" '
 	echo "$oid $type $size" >expect &&
-	echo_without_newline $oid | git cat-file --batch-check >actual &&
+	echo_without_newline "$object_name" | git cat-file --batch-check >actual &&
 	test_cmp expect actual
     '
 
@@ -168,33 +169,42 @@ $content"
 	test -z "$content" ||
 		test_expect_success "--batch-command $opt output of $type content is correct" '
 		echo "$batch_output" >expect &&
-		test_write_lines "contents $oid" | git cat-file --batch-command $opt >actual &&
+		test_write_lines "contents $object_name" | git cat-file --batch-command $opt >actual &&
 		test_cmp expect actual
 	'
 
 	test_expect_success "--batch-command $opt output of $type info is correct" '
 		echo "$oid $type $size" >expect &&
-		test_write_lines "info $oid" |
+		test_write_lines "info $object_name" |
 		git cat-file --batch-command $opt >actual &&
 		test_cmp expect actual
 	'
     done
 
     test_expect_success "custom --batch-check format" '
 	echo "$type $oid" >expect &&
-	echo $oid | git cat-file --batch-check="%(objecttype) %(objectname)" >actual &&
+	echo "$object_name" | git cat-file --batch-check="%(objecttype) %(objectname)" >actual &&
 	test_cmp expect actual
     '
 
     test_expect_success "custom --batch-command format" '
 	echo "$type $oid" >expect &&
-	echo "info $oid" | git cat-file --batch-command="%(objecttype) %(objectname)" >actual &&
+	echo "info $object_name" | git cat-file --batch-command="%(objecttype) %(objectname)" >actual &&
 	test_cmp expect actual
     '
 
-    test_expect_success '--batch-check with %(rest)' '
+    # FIXME: %(rest) is incompatible with object names that include whitespace,
+    # e.g. HEAD:path/to/a/file with spaces. Use the resolved OID as input to
+    # test this instead of the raw object name.
+    if echo "$object_name" | grep " "; then
+	test_rest=test_expect_failure
+    else
+	test_rest=test_expect_success
+    fi
+
+    $test_rest '--batch-check with %(rest)' '
 	echo "$type this is some extra content" >expect &&
-	echo "$oid    this is some extra content" |
+	echo "$object_name    this is some extra content" |
 		git cat-file --batch-check="%(objecttype) %(rest)" >actual &&
 	test_cmp expect actual
     '
@@ -205,7 +215,7 @@ $content"
 		echo "$size" &&
 		echo "$content"
 	} >expect &&
-	echo $oid | git cat-file --batch="%(objectsize)" >actual &&
+	echo "$object_name" | git cat-file --batch="%(objectsize)" >actual &&
 	test_cmp expect actual
     '
 
@@ -215,7 +225,7 @@ $content"
 		echo "$type" &&
 		echo "$content"
 	} >expect &&
-	echo $oid | git cat-file --batch="%(objecttype)" >actual &&
+	echo "$object_name" | git cat-file --batch="%(objecttype)" >actual &&
 	test_cmp expect actual
     '
 }
@@ -230,6 +240,8 @@ test_expect_success "setup" '
 	git config extensions.compatobjectformat $test_compat_hash_algo &&
 	echo_without_newline "$hello_content" > hello &&
 	git update-index --add hello &&
+	echo_without_newline "$hello_content" > "path with spaces" &&
+	git update-index --add --chmod=+x "path with spaces" &&
 	git commit -m "add hello file"
 '
 
@@ -269,13 +281,17 @@ test_expect_success '--batch-check without %(rest) considers whole line' '
 
 tree_oid=$(git write-tree)
 tree_compat_oid=$(git rev-parse --output-object-format=$test_compat_hash_algo $tree_oid)
-tree_size=$(($(test_oid rawsz) + 13))
-tree_compat_size=$(($(test_oid --hash=compat rawsz) + 13))
-tree_pretty_content="100644 blob $hello_oid	hello${LF}"
-tree_compat_pretty_content="100644 blob $hello_compat_oid	hello${LF}"
+tree_size=$((2 * $(test_oid rawsz) + 13 + 24))
+tree_compat_size=$((2 * $(test_oid --hash=compat rawsz) + 13 + 24))
+tree_pretty_content="100644 blob $hello_oid	hello${LF}100755 blob $hello_oid	path with spaces${LF}"
+tree_compat_pretty_content="100644 blob $hello_compat_oid	hello${LF}100755 blob $hello_compat_oid	path with spaces${LF}"
 
 run_tests 'tree' $tree_oid $tree_size "" "$tree_pretty_content"
 run_tests 'tree' $tree_compat_oid $tree_compat_size "" "$tree_compat_pretty_content"
+run_tests 'blob' "$tree_oid:hello" $hello_size "" "$hello_content" $hello_oid
+run_tests 'blob' "$tree_compat_oid:hello" $hello_size "" "$hello_content" $hello_compat_oid
+run_tests 'blob' "$tree_oid:path with spaces" $hello_size "" "$hello_content" $hello_oid
+run_tests 'blob' "$tree_compat_oid:path with spaces" $hello_size "" "$hello_content" $hello_compat_oid
 
 commit_message="Initial commit"
 commit_oid=$(echo_without_newline "$commit_message" | git commit-tree $tree_oid)