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// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// @dart = 2.9
import "package:expect/expect.dart";
// Dart test program for RegExp.allMatches.
class RegExpAllMatchesTest {
static testIterator() {
var matches = new RegExp("foo").allMatches("foo foo");
Iterator it = matches.iterator;
Expect.isNull(it.current);
Expect.isTrue(it.moveNext());
Expect.equals('foo', it.current.group(0));
Expect.isTrue(it.moveNext());
Expect.equals('foo', it.current.group(0));
Expect.isFalse(it.moveNext());
// Run two iterators over the same results.
it = matches.iterator;
Iterator it2 = matches.iterator;
Expect.isTrue(it.moveNext());
Expect.isTrue(it2.moveNext());
Expect.equals('foo', it.current.group(0));
Expect.equals('foo', it2.current.group(0));
Expect.isTrue(it.moveNext());
Expect.isTrue(it2.moveNext());
Expect.equals('foo', it.current.group(0));
Expect.equals('foo', it2.current.group(0));
Expect.equals(false, it.moveNext());
Expect.equals(false, it2.moveNext());
}
static testForEach() {
var matches = new RegExp("foo").allMatches("foo foo");
var strbuf = new StringBuffer();
matches.forEach((Match m) {
strbuf.write(m.group(0));
});
Expect.equals("foofoo", strbuf.toString());
}
static testMap() {
var matches = new RegExp("foo?").allMatches("foo fo foo fo");
var mapped = matches.map((Match m) => "${m.group(0)}bar");
Expect.equals(4, mapped.length);
var strbuf = new StringBuffer();
for (String s in mapped) {
strbuf.write(s);
}
Expect.equals("foobarfobarfoobarfobar", strbuf.toString());
}
static testFilter() {
var matches = new RegExp("foo?").allMatches("foo fo foo fo");
var filtered = matches.where((Match m) {
return m.group(0) == 'foo';
});
Expect.equals(2, filtered.length);
var strbuf = new StringBuffer();
for (Match m in filtered) {
strbuf.write(m.group(0));
}
Expect.equals("foofoo", strbuf.toString());
}
static testEvery() {
var matches = new RegExp("foo?").allMatches("foo fo foo fo");
Expect.equals(true, matches.every((Match m) {
return m.group(0).startsWith("fo");
}));
Expect.equals(false, matches.every((Match m) {
return m.group(0).startsWith("foo");
}));
}
static testSome() {
var matches = new RegExp("foo?").allMatches("foo fo foo fo");
Expect.equals(true, matches.any((Match m) {
return m.group(0).startsWith("fo");
}));
Expect.equals(true, matches.any((Match m) {
return m.group(0).startsWith("foo");
}));
Expect.equals(false, matches.any((Match m) {
return m.group(0).startsWith("fooo");
}));
}
static testIsEmpty() {
var matches = new RegExp("foo?").allMatches("foo fo foo fo");
Expect.equals(false, matches.isEmpty);
matches = new RegExp("fooo").allMatches("foo fo foo fo");
Expect.equals(true, matches.isEmpty);
}
static testGetCount() {
var matches = new RegExp("foo?").allMatches("foo fo foo fo");
Expect.equals(4, matches.length);
matches = new RegExp("fooo").allMatches("foo fo foo fo");
Expect.equals(0, matches.length);
}
static testMain() {
testIterator();
testForEach();
testMap();
testFilter();
testEvery();
testSome();
testIsEmpty();
testGetCount();
}
}
main() {
RegExpAllMatchesTest.testMain();
}