containsKeyThat method
Expects that the map contains some key such that keyCondition
is
satisfied.
Implementation
void containsKeyThat(Condition<K> keyCondition) {
context.expect(() {
final conditionDescription = describe(keyCondition);
assert(conditionDescription.isNotEmpty);
return [
'contains a key that:',
...conditionDescription,
];
}, (actual) {
if (actual.isEmpty) return Rejection(actual: ['an empty map']);
for (var k in actual.keys) {
if (softCheck(k, keyCondition) == null) return null;
}
return Rejection(which: ['Contains no matching key']);
});
}