src/third_party/closure_library/closure/goog/string/stringbuffer_test.js

// Copyright 2006 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

goog.provide('goog.string.StringBufferTest');
goog.setTestOnly('goog.string.StringBufferTest');

goog.require('goog.string.StringBuffer');
goog.require('goog.testing.jsunit');

function testStringBuffer() {
  var sb = new goog.string.StringBuffer();
  sb.append('Four score');
  sb.append(' ');
  sb.append('and seven years ago.');
  assertEquals('Test 1', 'Four score and seven years ago.', sb.toString());

  sb.clear();
  assertEquals('Test 2', '', sb.toString());

  sb = new goog.string.StringBuffer('Four score ');
  sb.append('and seven years ago.');
  assertEquals('Test 3', 'Four score and seven years ago.', sb.toString());

  // can pass in non-Strings?
  sb = new goog.string.StringBuffer(1);
  sb.append(2);
  assertEquals('Test 4', '12', sb.toString());
}


function testStringBufferSet() {
  var sb = new goog.string.StringBuffer('foo');
  sb.set('bar');
  assertEquals('Test 1', 'bar', sb.toString());
}


function testStringBufferMultiAppend() {
  var sb = new goog.string.StringBuffer('hey', 'foo');
  sb.append('bar', 'baz');
  assertEquals('Test 1', 'heyfoobarbaz', sb.toString());

  sb = new goog.string.StringBuffer();
  sb.append(1, 2);
  // should not add up to '3'
  assertEquals('Test 2', '12', sb.toString());
}


function testStringBufferToString() {
  var sb = new goog.string.StringBuffer('foo', 'bar');
  assertEquals('Test 1', 'foobar', sb.toString());
}


function testStringBufferWithFalseFirstArgument() {
  var sb = new goog.string.StringBuffer(0, 'more');
  assertEquals('Test 1', '0more', sb.toString());

  sb = new goog.string.StringBuffer(false, 'more');
  assertEquals('Test 2', 'falsemore', sb.toString());

  sb = new goog.string.StringBuffer('', 'more');
  assertEquals('Test 3', 'more', sb.toString());

  sb = new goog.string.StringBuffer(null, 'more');
  assertEquals('Test 4', '', sb.toString());

  sb = new goog.string.StringBuffer(undefined, 'more');
  assertEquals('Test 5', '', sb.toString());
}


function testStringBufferGetLength() {
  var sb = new goog.string.StringBuffer();
  assertEquals(0, sb.getLength());

  sb.append('foo');
  assertEquals(3, sb.getLength());

  sb.append('baroo');
  assertEquals(8, sb.getLength());

  sb.clear();
  assertEquals(0, sb.getLength());
}