commit 31b20a6ee4dbd85fa7c564c661de84c5797f10bc
from: Stefan Sperling <stsp@stsp.name>
date: Tue Aug 06 09:35:22 2019 UTC

add a test for 'no changes to stage' error condition

commit - 28c99501052c9eb548496dd0bec02f4199e75cb5
commit + 31b20a6ee4dbd85fa7c564c661de84c5797f10bc
blob - 5c1f24efb47256ab0b6777e21923285cde1ce266
blob + 4eb0bdb57555928c3ce80c22a90a278497349b0a
--- regress/cmdline/stage.sh
+++ regress/cmdline/stage.sh
@@ -44,6 +44,44 @@ function test_stage_basic {
 	test_done "$testroot" "$ret"
 }
 
+function test_stage_no_changes {
+	local testroot=`test_init stage_no_changes`
+
+	got checkout $testroot/repo $testroot/wt > /dev/null
+	ret="$?"
+	if [ "$ret" != "0" ]; then
+		test_done "$testroot" "$ret"
+		return 1
+	fi
+
+	(cd $testroot/wt && got stage alpha beta > $testroot/stdout \
+		2> $testroot/stderr)
+	ret="$?"
+	if [ "$ret" == "0" ]; then
+		echo "got stage command succeeded unexpectedly" >&2
+		test_done "$testroot" "1"
+		return 1
+	fi
+
+	echo "got: alpha: no changes to stage" > $testroot/stderr.expected
+
+	cmp -s $testroot/stderr.expected $testroot/stderr
+	ret="$?"
+	if [ "$ret" != "0" ]; then
+		diff -u $testroot/stderr.expected $testroot/stderr
+		test_done "$testroot" "$ret"
+		return 1
+	fi
+
+	echo -n > $testroot/stdout.expected
+	cmp -s $testroot/stdout.expected $testroot/stdout
+	ret="$?"
+	if [ "$ret" != "0" ]; then
+		diff -u $testroot/stdout.expected $testroot/stdout
+	fi
+	test_done "$testroot" "$ret"
+}
+
 function test_stage_list {
 	local testroot=`test_init stage_list`
 
@@ -1104,6 +1142,7 @@ function test_stage_commit {
 }
 
 run_test test_stage_basic
+run_test test_stage_no_changes
 run_test test_stage_list
 run_test test_stage_conflict
 run_test test_stage_out_of_date