| /* |
| * Copyright 2015 Google Inc. |
| * |
| * 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. |
| */ |
| package com.google.gwt.emultest.java8.util; |
| |
| import com.google.gwt.core.client.JavaScriptException; |
| import com.google.gwt.junit.client.GWTTestCase; |
| |
| import java.util.StringJoiner; |
| |
| /** |
| * Tests StringJoiner. |
| */ |
| public class StringJoinerTest extends GWTTestCase { |
| |
| private StringJoiner joiner; |
| |
| @Override |
| public String getModuleName() { |
| return "com.google.gwt.emultest.EmulSuite"; |
| } |
| |
| @Override |
| protected void gwtSetUp() throws Exception { |
| super.gwtSetUp(); |
| joiner = new StringJoiner("|", "[", "]"); |
| } |
| |
| public void testConstructor() { |
| try { |
| new StringJoiner(null, null, null); |
| fail("NullPointerException must be thrown if any constructor parameter is null"); |
| } catch (NullPointerException e) { |
| // expected |
| } catch (JavaScriptException e) { |
| // expected |
| } |
| } |
| |
| public void testAdd() throws Exception { |
| joiner.add("0").add(null); |
| assertEquals("[0|null]", joiner.toString()); |
| } |
| |
| public void testLength() throws Exception { |
| assertEquals(joiner.toString().length(), joiner.length()); |
| |
| joiner.setEmptyValue("empty"); |
| assertEquals(joiner.toString().length(), joiner.length()); |
| |
| joiner.add("0").add("1"); |
| assertEquals(joiner.toString().length(), joiner.length()); |
| } |
| |
| public void testMerge() throws Exception { |
| joiner.add("0").add("1"); |
| joiner.merge(new StringJoiner(",", "(", ")").add("2").add("3")); |
| joiner.add("4").add("5"); |
| assertEquals("[0|1|2,3|4|5]", joiner.toString()); |
| |
| joiner.merge(joiner); |
| assertEquals("[0|1|2,3|4|5|0|1|2,3|4|5]", joiner.toString()); |
| |
| try { |
| joiner.merge(null); |
| fail("NullPointerException must be thrown if other joiner is null"); |
| } catch (NullPointerException e) { |
| // expected |
| } catch (JavaScriptException e) { |
| // expected |
| } |
| } |
| |
| public void testSetEmptyValue() throws Exception { |
| joiner.setEmptyValue("empty"); |
| assertEquals("empty", joiner.toString()); |
| |
| try { |
| joiner.setEmptyValue(null); |
| fail("NullPointerException must be thrown if emptyValue is null"); |
| } catch (NullPointerException e) { |
| // expected |
| } catch (JavaScriptException e) { |
| // expected |
| } |
| } |
| } |