platform-common-utilities/packages/merge_map/test/all_test.dart

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2021-09-11 14:09:54 +00:00
import 'package:angel3_merge_map/angel3_merge_map.dart';
import 'package:test/test.dart';
void main() {
test('can merge two simple maps', () {
var merged = mergeMap([
{'hello': 'world'},
{'hello': 'dolly'}
]);
expect(merged['hello'], equals('dolly'));
});
test("the last map's values supersede those of prior", () {
var merged = mergeMap([
{'letter': 'a'},
{'letter': 'b'},
{'letter': 'c'}
]);
expect(merged['letter'], equals('c'));
});
test('can merge two once-nested maps', () {
// ignore: omit_local_variable_types
Map map1 = {
'hello': 'world',
'foo': {'nested': false}
};
// ignore: omit_local_variable_types
Map map2 = {
'goodbye': 'sad life',
'foo': {'nested': true, 'it': 'works'}
};
var merged = mergeMap([map1, map2]);
expect(merged['hello'], equals('world'));
expect(merged['goodbye'], equals('sad life'));
expect(merged['foo']['nested'], equals(true));
expect(merged['foo']['it'], equals('works'));
});
test('once-nested map supersession', () {
// ignore: omit_local_variable_types
Map map1 = {
'hello': 'world',
'foo': {'nested': false}
};
// ignore: omit_local_variable_types
Map map2 = {
'goodbye': 'sad life',
'foo': {'nested': true, 'it': 'works'}
};
// ignore: omit_local_variable_types
Map map3 = {
'foo': {'nested': 'supersession'}
};
var merged = mergeMap([map1, map2, map3]);
expect(merged['foo']['nested'], equals('supersession'));
});
test('can merge two twice-nested maps', () {
// ignore: omit_local_variable_types
Map map1 = {
'a': {
'b': {'c': 'd'}
}
};
// ignore: omit_local_variable_types
Map map2 = {
'a': {
'b': {'c': 'D', 'e': 'f'}
}
};
var merged = mergeMap([map1, map2]);
expect(merged['a']['b']['c'], equals('D'));
expect(merged['a']['b']['e'], equals('f'));
});
test('twice-nested map supersession', () {
// ignore: omit_local_variable_types
Map map1 = {
'a': {
'b': {'c': 'd'}
}
};
// ignore: omit_local_variable_types
Map map2 = {
'a': {
'b': {'c': 'D', 'e': 'f'}
}
};
// ignore: omit_local_variable_types
Map map3 = {
'a': {
'b': {'e': 'supersession'}
}
};
var merged = mergeMap([map1, map2, map3]);
expect(merged['a']['b']['c'], equals('D'));
expect(merged['a']['b']['e'], equals('supersession'));
});
}