[PATCH v3 4/5] t4202-log: add tests for --merges=

[Koosha Khajehmoogahi <koosha@posteo.de>]

From: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Koosha Khajehmoogahi <koosha@posteo.de>
---
 t/t4202-log.sh | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/t/t4202-log.sh b/t/t4202-log.sh
index 1b2e981..3edcd81 100755
--- a/t/t4202-log.sh
+++ b/t/t4202-log.sh
@@ -270,6 +270,35 @@ cat > expect <<\EOF
 * initial
 EOF
 
+test_expect_success 'setup merges=' '
+	git log --min-parents=2 --pretty=tformat:%s >expect_only &&
+	git log --max-parents=1 --pretty=tformat:%s >expect_hide &&
+	git log --min-parents=-1 --pretty=tformat:%s >expect_show
+'
+
+test_log_merges() {
+	expect=expect_$1
+	config=${2:+-c log.merges=$2}
+	option=${3:+--merges=$3}
+	option=${4:-$option}
+	test_expect_success "merges${config:+ $config}${option:+ $option}" "
+		git $config log $option --pretty=tformat:%s >actual &&
+		test_cmp $expect actual
+	"
+}
+
+states="show only hide"
+for c in '' $states
+do
+	for o in '' $states
+	do
+		test_log_merges ${o:-${c:-show}} "$c" "$o"
+	done
+done
+
+test_log_merges hide show '' --no-merges
+test_log_merges only hide '' '--merges --max-parents=2'
+
 test_expect_success 'log --graph with merge' '
 	git log --graph --date-order --pretty=tformat:%s |
 		sed "s/ *\$//" >actual &&
-- 
2.3.3.263.g095251d.dirty