t1006: extract --batch-command inputs to variables

A future commit will want to ensure that various `--batch`-related
options produce the same output whether their input is newline
terminated, or NUL terminated (and a to-be-implemented `-z` option
exists).

To prepare for this, extract the given input(s) into separate variables
to that their LF characters can easily be converted into NUL bytes when
testing the new `-z` mode.

This is consistent with other tests in t1006 (which these days is no
longer a shining example of our CodingGuidelines).

Signed-off-by: Taylor Blau <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: ttaylorr

t/t1006-cat-file.sh

@@ -418,6 +418,12 @@ test_expect_success "--batch-check with multiple sha1s gives correct format" '
     "$(echo_without_newline "$batch_check_input" | git cat-file --batch-check)"
 '
 
+batch_command_multiple_info="info $hello_sha1
+info $tree_sha1
+info $commit_sha1
+info $tag_sha1
+info deadbeef"
+
 test_expect_success '--batch-command with multiple info calls gives correct format' '
 	cat >expect <<-EOF &&
 	$hello_sha1 blob $hello_size
@@ -427,17 +433,18 @@ test_expect_success '--batch-command with multiple info calls gives correct form
 	deadbeef missing
 	EOF
 
-	git cat-file --batch-command --buffer >actual <<-EOF &&
-	info $hello_sha1
-	info $tree_sha1
-	info $commit_sha1
-	info $tag_sha1
-	info deadbeef
-	EOF
+	echo "$batch_command_multiple_info" >in &&
+	git cat-file --batch-command --buffer <in >actual &&
 
 	test_cmp expect actual
 '
 
+batch_command_multiple_contents="contents $hello_sha1
+contents $commit_sha1
+contents $tag_sha1
+contents deadbeef
+flush"
+
 test_expect_success '--batch-command with multiple command calls gives correct format' '
 	remove_timestamp >expect <<-EOF &&
 	$hello_sha1 blob $hello_size
@@ -449,13 +456,8 @@ test_expect_success '--batch-command with multiple command calls gives correct f
 	deadbeef missing
 	EOF
 
-	git cat-file --batch-command --buffer >actual_raw <<-EOF &&
-	contents $hello_sha1
-	contents $commit_sha1
-	contents $tag_sha1
-	contents deadbeef
-	flush
-	EOF
+	echo "$batch_command_multiple_contents" >in &&
+	git cat-file --batch-command --buffer <in >actual_raw &&
 
 	remove_timestamp <actual_raw >actual &&
 	test_cmp expect actual