Add a null contains test (#140)
diff --git a/test/map_matchers_test.dart b/test/map_matchers_test.dart
index c00c125..6efbf65 100644
--- a/test/map_matchers_test.dart
+++ b/test/map_matchers_test.dart
@@ -7,12 +7,19 @@
void main() {
test('contains', () {
shouldPass({'a': 1}, contains('a'));
+ shouldPass({null: 1}, contains(null));
shouldFail(
{'a': 1},
contains(2),
'Expected: contains <2> '
'Actual: {\'a\': 1}',
);
+ shouldFail(
+ {'a': 1},
+ contains(null),
+ 'Expected: contains <null> '
+ 'Actual: {\'a\': 1}',
+ );
});
test('containsValue', () {