[PATCH 1/3 v5] diff --stat: tests for long filenames and big change counts

["Zbigniew Jędrzejewski-Szmek" <zbyszek@in.waw.pl>]

Eleven tests for various combinations of a long filename and/or big
change count and ways to specify widths for diff --stat.
---
Tests added in previous version of 'diff --stat: use full terminal width'
are extracted into a separate patch. The tests are usefull independently
of that patch anyway.

changes to tests since v4:
- seq is replaced with a while loop for windows compatibility
- grep -m 1 is replaced with grep " | "
- redirects are made portable
- piped output is split into two commands to verify that the first command
  sucessfully runs to completion

 t/t4014-format-patch.sh | 101 ++++++++++++++++++++++++++++++++++++++++
 1 files changed, 101 insertions(+), 0 deletions(-)

diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 6797512..f6ebb51 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -894,4 +894,105 @@ test_expect_success 'format patch ignores color.ui' '
 	test_cmp expect actual
 '
 
+# 120 character name
+name=aaaaaaaaaa
+name=$name$name$name$name$name$name$name$name$name$name$name$name
+test_expect_success 'preparation' "
+	>\"$name\" &&
+	git add \"$name\" &&
+	git commit -m message &&
+	echo a >\"$name\" &&
+	git commit -m message \"$name\"
+"
+
+cat >expect <<'EOF'
+ ...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa |    1 +
+EOF
+test_expect_success 'format patch graph width defaults to 80 columns' '
+	git format-patch --stat --stdout -1 >output &&
+	grep " | " output >actual &&
+	test_cmp expect actual
+'
+
+cat >expect <<'EOF'
+ ...aaaaaaaaaaaaaaaaaaaaaaaaaa |    1 +
+EOF
+test_expect_success 'format patch --stat=width with long name' '
+	git format-patch --stat=40 --stdout -1 >output &&
+	grep " | " output >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'format patch --stat-width=width works with long name' '
+	git format-patch --stat-width=40 --stdout -1 >output &&
+	grep " | " output >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'format patch --stat=...,name-width with long name' '
+	git format-patch --stat=60,29 --stdout -1 >output &&
+	grep " | " output >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'format patch --stat-name-width with long name' '
+	git format-patch --stat-name-width=29 --stdout -1 >output &&
+	grep " | " output >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'preparation' '
+	>abcd &&
+	git add abcd &&
+	git commit -m message &&
+	i=0 &&
+	while test $i -lt 1000; do
+		echo $i &&
+		i=$(($i + 1))
+	done >abcd &&
+	git commit -m message abcd
+'
+
+cat >expect <<'EOF'
+ abcd | 1000 ++++++++++++++++++++++++++++++++++++++++
+EOF
+test_expect_success 'format patch graph part width is 40 columns' '
+	git format-patch --stat --stdout -1 >output &&
+	grep " | " output >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'format patch ignores COLUMNS' '
+	COLUMNS=200 git format-patch --stat --stdout -1 >output
+	grep " | " output >actual &&
+	test_cmp expect actual
+'
+
+cat >expect <<'EOF'
+ abcd | 1000 ++++++++++++++++++++++++++
+EOF
+test_expect_success 'format patch --stat=width with big change' '
+	git format-patch --stat=40 --stdout -1 >output
+	grep " | " output >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'format patch --stat-width=width with big change' '
+	git format-patch --stat-width=40 --stdout -1 >output
+	grep " | " output >actual &&
+	test_cmp expect actual
+'
+
+cat >expect <<'EOF'
+ ...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 ++++++++++++
+EOF
+test_expect_success 'format patch --stat=width with big change and long name' '
+	cp abcd aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&
+	git add aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&
+	git commit -m message &&
+	git format-patch --stat-width=60 --stdout -1 >output &&
+	grep " | " output >actual &&
+	test_cmp expect actual
+'
+
 test_done
-- 
1.7.9.5.g91d5