| /* |
| * Copyright 2010 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.uibinder.elementparsers; |
| |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.dev.javac.testing.impl.MockJavaResource; |
| import com.google.gwt.uibinder.rebind.FieldWriter; |
| import com.google.gwt.uibinder.rebind.UiBinderContext; |
| |
| import junit.framework.TestCase; |
| |
| import org.xml.sax.SAXParseException; |
| |
| /** |
| * Tests {@link UiChildParser}. |
| */ |
| public class UiChildParserTest extends TestCase { |
| private static final String CHILDREN = "#CHILDREN#"; |
| private static final String PARSED_TYPE = "com.google.gwt.user.client.ui.HasUiChildren"; |
| private static final String UIBINDER = "<g:HasUiChildren>" + CHILDREN |
| + "</g:HasUiChildren>"; |
| |
| public void testAddChildWithParameters() throws SAXParseException, |
| UnableToCompleteException { |
| String b = UIBINDER.replaceAll(CHILDREN, |
| "<g:alimitedchild param1=\"1\"> <g:Label/> </g:alimitedchild>"); |
| ElementParserTester tester = getTester(); |
| |
| FieldWriter w = tester.parse(b.toString()); |
| assertEquals(1, tester.writer.statements.size()); |
| assertEquals("Only call was: " + tester.writer.statements.get(0), |
| "fieldName.addLimitedChild(<g:Label>, 1);", |
| tester.writer.statements.get(0)); |
| assertNull("Parser should never set an initializer.", w.getInitializer()); |
| } |
| |
| public void testAddChildWithParametersMissing() throws SAXParseException, |
| UnableToCompleteException { |
| String b = UIBINDER.replaceAll(CHILDREN, |
| "<g:alimitedchild> <g:Label/> </g:alimitedchild>"); |
| ElementParserTester tester = getTester(); |
| |
| FieldWriter w = tester.parse(b); |
| assertEquals(1, tester.writer.statements.size()); |
| assertEquals("Only call was: " + tester.writer.statements.get(0), |
| "fieldName.addLimitedChild(<g:Label>, 0);", |
| tester.writer.statements.get(0)); |
| assertNull("Parser should never set an initializer.", w.getInitializer()); |
| } |
| |
| public void testAddLimitedChildInvalid() throws SAXParseException, UnableToCompleteException { |
| String b = UIBINDER.replaceAll(CHILDREN, |
| " <g:alimitedchild param1=\"1\"> <g:Label/> </g:alimitedchild>" |
| + " <g:alimitedchild param1=\"2\"> <g:Label/> </g:alimitedchild>"); |
| ElementParserTester tester = getTester(); |
| |
| try { |
| tester.parse(b.toString()); |
| fail(); |
| } catch (UnableToCompleteException exception) { |
| assertEquals(1, tester.writer.statements.size()); |
| assertEquals("Only call should be: " + tester.writer.statements.get(0), |
| "fieldName.addLimitedChild(<g:Label>, 1);", |
| tester.writer.statements.get(0)); |
| } |
| } |
| |
| public void testAddNamedChild() throws SAXParseException, |
| UnableToCompleteException { |
| String b = UIBINDER.replaceAll(CHILDREN, |
| "<g:achild > <g:Label/> </g:achild>"); |
| ElementParserTester tester = getTester(); |
| |
| FieldWriter w = tester.parse(b.toString()); |
| assertEquals(1, tester.writer.statements.size()); |
| assertEquals("fieldName.addNamedChild(<g:Label>);", |
| tester.writer.statements.get(0)); |
| assertNull("Parser should never set an initializer.", w.getInitializer()); |
| } |
| |
| public void testBadChild() throws SAXParseException, |
| UnableToCompleteException { |
| String b = UIBINDER.replaceAll(CHILDREN, |
| "<g:badtag> <g:Label/> </g:badtag>"); |
| ElementParserTester tester = getTester(); |
| |
| FieldWriter w = tester.parse(b); |
| assertEquals("No children should have been consumed.", 0, |
| tester.writer.statements.size()); |
| assertNull("Parser should never set an initializer.", w.getInitializer()); |
| |
| // children tags should be lowercase only |
| b = UIBINDER.replaceAll(CHILDREN, "<g:Child />"); |
| w = tester.parse(b); |
| assertEquals("No children should have been consumed.", 0, |
| tester.writer.statements.size()); |
| assertNull("Parser should never set an initializer.", w.getInitializer()); |
| } |
| |
| public void testBadParamType() throws SAXParseException, UnableToCompleteException { |
| String b = |
| UIBINDER.replaceAll(CHILDREN, "<g:aIntChild > <g:Widget/> </g:aIntChild>"); |
| ElementParserTester tester = getBadParamTester(); |
| |
| try { |
| tester.parse(b.toString()); |
| fail("Expected to choke on non-object param type."); |
| } catch (UnableToCompleteException exception) { |
| assertEquals(0, tester.writer.statements.size()); |
| } |
| } |
| |
| public void testComposedParamTypeChild() throws SAXParseException, UnableToCompleteException { |
| String b = |
| UIBINDER.replaceAll(CHILDREN, "<g:aComposedParamTypeChild > <g:CheckBox/> </g:aComposedParamTypeChild>"); |
| ElementParserTester tester = getTester(); |
| |
| FieldWriter w = tester.parse(b.toString()); |
| assertEquals(1, tester.writer.statements.size()); |
| assertEquals("fieldName.addComposedParamTypeChild(<g:CheckBox>);", tester.writer.statements.get(0)); |
| assertNull("Parser should never set an initializer.", w.getInitializer()); |
| } |
| |
| public void testIncompatibleChild() throws SAXParseException, UnableToCompleteException { |
| String b = UIBINDER.replaceAll(CHILDREN, "<g:child> <div/> </g:child>"); |
| ElementParserTester tester = getTester(); |
| |
| try { |
| tester.parse(b); |
| fail("Incompatible type should have thrown an error."); |
| } catch (UnableToCompleteException exception) { |
| assertEquals(0, tester.writer.statements.size()); |
| } |
| } |
| |
| public void testInterfaceChild() throws SAXParseException, UnableToCompleteException { |
| String b = |
| UIBINDER.replaceAll(CHILDREN, "<g:anInterfaceChild > <g:IsWidget/> </g:anInterfaceChild>"); |
| ElementParserTester tester = getTester(); |
| |
| FieldWriter w = tester.parse(b.toString()); |
| assertEquals(1, tester.writer.statements.size()); |
| assertEquals("fieldName.addInterfaceChild(<g:IsWidget>);", tester.writer.statements.get(0)); |
| assertNull("Parser should never set an initializer.", w.getInitializer()); |
| } |
| |
| public void testMultipleChildrenInvalid() throws SAXParseException, UnableToCompleteException { |
| String b = UIBINDER.replaceAll(CHILDREN, |
| "<g:child ><g:Label/><g:Label/></g:child>"); |
| ElementParserTester tester = getTester(); |
| |
| try { |
| tester.parse(b.toString()); |
| fail("Cannot have multiple children under an @UiChild tag."); |
| } catch (UnableToCompleteException exception) { |
| assertEquals(0, tester.writer.statements.size()); |
| } |
| } |
| |
| public void testNonWidgetChild() throws SAXParseException, UnableToCompleteException { |
| String b = |
| UIBINDER.replaceAll(CHILDREN, "<g:aSpecificChild > <g:MenuItem/> </g:aSpecificChild>"); |
| ElementParserTester tester = getTester(); |
| |
| FieldWriter w = tester.parse(b.toString()); |
| assertEquals(1, tester.writer.statements.size()); |
| assertEquals("fieldName.addSpecificTypeOfChild(<g:MenuItem>);", tester.writer.statements.get(0)); |
| assertNull("Parser should never set an initializer.", w.getInitializer()); |
| } |
| |
| public void testNoAttributes() throws SAXParseException, UnableToCompleteException { |
| String b = UIBINDER.replaceAll(CHILDREN, "<g:achild ui:field='oops'> <g:Label/> </g:achild>"); |
| ElementParserTester tester = getTester(); |
| |
| try { |
| tester.parse(b.toString()); |
| fail("Expected to choke on disallowed parameter."); |
| } catch (UnableToCompleteException exception) { |
| assertEquals(0, tester.writer.statements.size()); |
| } |
| } |
| |
| public void testNoParameterChild() throws SAXParseException, |
| UnableToCompleteException { |
| String b = UIBINDER.replaceAll(CHILDREN, "<g:child> <g:Label/> </g:child>"); |
| ElementParserTester tester = getTester(); |
| |
| FieldWriter w = tester.parse(b); |
| assertEquals(1, tester.writer.statements.size()); |
| assertNull("Parser should never set an initializer.", w.getInitializer()); |
| assertEquals("fieldName.addChild(<g:Label>);", |
| tester.writer.statements.get(0)); |
| } |
| |
| public void testParamTypeChild() throws SAXParseException, UnableToCompleteException { |
| String b = |
| UIBINDER.replaceAll(CHILDREN, "<g:aParamTypeChild > <g:ParamTypeImpl/> </g:aParamTypeChild>"); |
| ElementParserTester tester = getTester(); |
| |
| FieldWriter w = tester.parse(b.toString()); |
| assertEquals(1, tester.writer.statements.size()); |
| assertEquals("fieldName.addParamTypeChild(<g:ParamTypeImpl>);", tester.writer.statements.get(0)); |
| assertNull("Parser should never set an initializer.", w.getInitializer()); |
| } |
| |
| public void testTypeMismatchChild() throws SAXParseException, UnableToCompleteException { |
| String b = |
| UIBINDER.replaceAll(CHILDREN, "<g:aSpecificChild > <g:Widget/> </g:aSpecificChild>"); |
| ElementParserTester tester = getTester(); |
| |
| try { |
| tester.parse(b.toString()); |
| fail("Expected to choke on type mismatch."); |
| } catch (UnableToCompleteException exception) { |
| assertEquals(0, tester.writer.statements.size()); |
| } |
| } |
| |
| private ElementParserTester getBadParamTester() throws UnableToCompleteException { |
| MockJavaResource invalidParamType = new MockJavaResource(PARSED_TYPE) { |
| @Override |
| public CharSequence getContent() { |
| StringBuffer code = new StringBuffer(); |
| code.append("package com.google.gwt.user.client.ui;\n"); |
| code.append("import com.google.gwt.uibinder.client.UiChild;\n"); |
| code.append("public class HasUiChildren {\n"); |
| code.append(" @UiChild\n"); |
| code.append(" void addIntChild(int child) {\n"); |
| code.append(" }\n\n"); |
| code.append("}\n"); |
| return code; |
| } |
| }; |
| return new ElementParserTester(PARSED_TYPE, |
| new UiChildParser(new UiBinderContext()), invalidParamType); |
| } |
| |
| private ElementParserTester getTester() throws UnableToCompleteException { |
| MockJavaResource editor = new MockJavaResource("com.google.gwt.user.client.ui.Editor") { |
| @Override |
| public CharSequence getContent() { |
| StringBuffer code = new StringBuffer(); |
| code.append("package com.google.gwt.user.client.ui;\n"); |
| code.append("public interface Editor<T>{\n"); |
| code.append("}\n"); |
| return code; |
| } |
| }; |
| MockJavaResource checkBox = new MockJavaResource("com.google.gwt.user.client.ui.CheckBox") { |
| @Override |
| public CharSequence getContent() { |
| StringBuffer code = new StringBuffer(); |
| code.append("package com.google.gwt.user.client.ui;\n"); |
| code.append("public class CheckBox extends Widget implements Editor<Boolean> {"); |
| code.append("}\n"); |
| return code; |
| } |
| }; |
| MockJavaResource paramType = new MockJavaResource("com.google.gwt.user.client.ui.ParamType") { |
| @Override |
| public CharSequence getContent() { |
| StringBuffer code = new StringBuffer(); |
| code.append("package com.google.gwt.user.client.ui;\n"); |
| code.append("public interface ParamType<T> {}\n"); |
| return code; |
| } |
| }; |
| |
| MockJavaResource paramTypeImpl = |
| new MockJavaResource("com.google.gwt.user.client.ui.ParamTypeImpl") { |
| @Override |
| public CharSequence getContent() { |
| StringBuffer code = new StringBuffer(); |
| code.append("package com.google.gwt.user.client.ui;\n"); |
| code.append("public class ParamTypeImpl<T> implements ParamType<T> {}\n"); |
| return code; |
| } |
| }; |
| |
| MockJavaResource hasUiChildren = new MockJavaResource(PARSED_TYPE) { |
| @Override |
| public CharSequence getContent() { |
| StringBuffer code = new StringBuffer(); |
| code.append("package com.google.gwt.user.client.ui;\n"); |
| code.append("import com.google.gwt.uibinder.client.UiChild;\n"); |
| code.append("import com.google.gwt.event.dom.client.ClickHandler;\n"); |
| code.append("public class HasUiChildren<T> {\n"); |
| |
| code.append(" @UiChild\n"); |
| code.append(" void addChild(Object child) {}\n\n"); |
| |
| code.append(" @UiChild(tagname=\"achild\")\n"); |
| code.append(" void addNamedChild(Object child) {}\n\n"); |
| |
| code.append(" @UiChild(tagname=\"alimitedchild\", limit=1)\n"); |
| code.append(" void addLimitedChild(Object child, int param1) {}\n\n"); |
| |
| code.append(" @UiChild(tagname=\"aSpecificChild\")\n"); |
| code.append(" void addSpecificTypeOfChild(MenuItem child) {}\n\n"); |
| |
| code.append(" @UiChild(tagname=\"anInterfaceChild\")\n"); |
| code.append(" void addInterfaceChild(IsWidget child) {}\n\n"); |
| |
| code.append(" @UiChild(tagname=\"aParamTypeChild\")\n"); |
| code.append(" void addParamTypeChild(ParamType<T> child) {}\n\n"); |
| |
| code.append(" @UiChild(tagname=\"aComposedParamTypeChild\")\n"); |
| code.append(" <W extends IsWidget & Editor<T>> void \n"); |
| code.append(" addComposedParamTypeChild(W child) {}\n\n"); |
| code.append("}\n"); |
| return code; |
| } |
| }; |
| |
| return new ElementParserTester(PARSED_TYPE, new UiChildParser(new UiBinderContext()), |
| paramType, paramTypeImpl, editor, checkBox, hasUiChildren); |
| } |
| } |