Java tutorial
/* * Copyright 2002-2007 the original author or authors. * * 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 org.hdiv.web.servlet.tags.form; import java.beans.PropertyEditor; import java.beans.PropertyEditorSupport; import java.io.Serializable; import java.util.ArrayList; import java.util.List; import javax.servlet.jsp.tagext.BodyTag; import javax.servlet.jsp.tagext.Tag; import org.hdiv.beans.Colour; import org.hdiv.beans.TestBean; import org.springframework.beans.propertyeditors.StringArrayPropertyEditor; import org.springframework.mock.web.MockHttpServletRequest; import org.springframework.test.AssertThrows; import org.springframework.util.StringUtils; import org.springframework.validation.BeanPropertyBindingResult; import org.springframework.web.servlet.support.BindStatus; import org.springframework.web.servlet.tags.form.OptionTag; import org.springframework.web.servlet.tags.form.SelectTag; import org.springframework.web.servlet.tags.form.TagWriter; /** * Unit tests for the {@link OptionTag} class. * * @author Gorka Vicente * @since 2.0.6 */ public class OptionTagTests extends AbstractHtmlElementTagTests { private static final String ARRAY_SOURCE = "abc,123,def"; private static final String[] ARRAY = StringUtils.commaDelimitedListToStringArray(ARRAY_SOURCE); private OptionTagHDIV tag; private boolean confidentiality; protected void onSetUp() { this.tag = new OptionTagHDIV() { protected TagWriter createTagWriter() { return new TagWriter(getWriter()); } }; this.tag.setPageContext(getPageContext()); SelectTagHDIV selectTag = new SelectTagHDIV(); selectTag.setPath("selectTest"); getPageContext().getRequest().setAttribute("selectTest", "1"); selectTag.setPageContext(getPageContext()); try { selectTag.doStartTag(); } catch (Exception e) { e.printStackTrace(); throw new RuntimeException(e); } this.tag.setParent(selectTag); confidentiality = ((Boolean) getHdivContext().getBean("confidentiality")).booleanValue(); } public void testCanBeDisabledEvenWhenSelected() throws Exception { getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, new BindStatus(getRequestContext(), "testBean.name", false)); this.tag.setValue("bar"); this.tag.setLabel("Bar"); this.tag.setDisabled("true"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); String hdivValue = this.confidentiality ? "0" : "bar"; assertContainsAttribute(output, "value", hdivValue); assertContainsAttribute(output, "disabled", "disabled"); assertBlockTagContains(output, "Bar"); } public void testRenderNotSelected() throws Exception { getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, new BindStatus(getRequestContext(), "testBean.name", false)); this.tag.setValue("bar"); this.tag.setLabel("Bar"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); String hdivValue = this.confidentiality ? "0" : "bar"; assertContainsAttribute(output, "value", hdivValue); assertBlockTagContains(output, "Bar"); } public void testRenderSelected() throws Exception { getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, new BindStatus(getRequestContext(), "testBean.name", false)); this.tag.setValue("foo"); this.tag.setLabel("Foo"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); String hdivValue = this.confidentiality ? "0" : "foo"; assertContainsAttribute(output, "value", hdivValue); assertContainsAttribute(output, "selected", "selected"); assertBlockTagContains(output, "Foo"); } public void testWithNoLabel() throws Exception { getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, new BindStatus(getRequestContext(), "testBean.name", false)); this.tag.setValue("bar"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); String hdivValue = this.confidentiality ? "0" : "bar"; assertContainsAttribute(output, "value", hdivValue); assertBlockTagContains(output, "bar"); } public void testWithoutContext() throws Exception { this.tag.setParent(null); this.tag.setValue("foo"); this.tag.setLabel("Foo"); new AssertThrows(IllegalStateException.class, "Must not be able to use <option> tag without exposed context.") { public void test() throws Exception { tag.doStartTag(); } }.runTest(); } public void testWithEnum() throws Exception { getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, new BindStatus(getRequestContext(), "testBean.favouriteColour", false)); String value = Colour.GREEN.getCode().toString(); String label = Colour.GREEN.getLabel(); this.tag.setValue(value); this.tag.setLabel(label); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); String hdivValue = this.confidentiality ? "0" : value; assertContainsAttribute(output, "value", hdivValue); assertContainsAttribute(output, "selected", "selected"); assertBlockTagContains(output, label); } public void testWithEnumNotSelected() throws Exception { getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, new BindStatus(getRequestContext(), "testBean.favouriteColour", false)); String value = Colour.BLUE.getCode().toString(); String label = Colour.BLUE.getLabel(); this.tag.setValue(value); this.tag.setLabel(label); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); String hdivValue = this.confidentiality ? "0" : value; assertContainsAttribute(output, "value", hdivValue); assertAttributeNotPresent(output, "selected"); assertBlockTagContains(output, label); } public void testWithPropertyEditor() throws Exception { BindStatus bindStatus = new BindStatus(getRequestContext(), "testBean.stringArray", false) { public PropertyEditor getEditor() { return new StringArrayPropertyEditor(); } }; getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, bindStatus); this.tag.setValue(ARRAY_SOURCE); this.tag.setLabel("someArray"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); String hdivValue = this.confidentiality ? "0" : ARRAY_SOURCE; assertContainsAttribute(output, "value", hdivValue); assertContainsAttribute(output, "selected", "selected"); assertBlockTagContains(output, "someArray"); } public void testWithPropertyEditorStringComparison() throws Exception { final PropertyEditor testBeanEditor = new TestBeanPropertyEditor(); testBeanEditor.setValue(new TestBean("Sally")); BindStatus bindStatus = new BindStatus(getRequestContext(), "testBean.spouse", false) { public PropertyEditor getEditor() { return testBeanEditor; } }; getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, bindStatus); this.tag.setValue("Sally"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); String hdivValue = this.confidentiality ? "0" : "Sally"; assertContainsAttribute(output, "value", hdivValue); assertContainsAttribute(output, "selected", "selected"); assertBlockTagContains(output, "Sally"); } public void testWithCustomObjectSelected() throws Exception { getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, new BindStatus(getRequestContext(), "testBean.someNumber", false)); this.tag.setValue("${myNumber}"); this.tag.setLabel("GBP ${myNumber}"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); String hdivValue = this.confidentiality ? "0" : "12.34"; assertContainsAttribute(output, "value", hdivValue); assertContainsAttribute(output, "selected", "selected"); assertBlockTagContains(output, "GBP 12.34"); } public void testWithCustomObjectNotSelected() throws Exception { getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, new BindStatus(getRequestContext(), "testBean.someNumber", false)); this.tag.setValue("${myOtherNumber}"); this.tag.setLabel("GBP ${myOtherNumber}"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); String hdivValue = this.confidentiality ? "0" : "12.35"; assertContainsAttribute(output, "value", hdivValue); assertAttributeNotPresent(output, "selected"); assertBlockTagContains(output, "GBP 12.35"); } public void testWithCustomObjectAndEditorSelected() throws Exception { final PropertyEditor floatEditor = new SimpleFloatEditor(); floatEditor.setValue(new Float("12.34")); BindStatus bindStatus = new BindStatus(getRequestContext(), "testBean.someNumber", false) { public PropertyEditor getEditor() { return floatEditor; } }; getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, bindStatus); this.tag.setValue("${myNumber}"); this.tag.setLabel("${myNumber}"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); assertContainsAttribute(output, "selected", "selected"); assertBlockTagContains(output, "12.34f"); } public void testWithCustomObjectAndEditorNotSelected() throws Exception { final PropertyEditor floatEditor = new SimpleFloatEditor(); BindStatus bindStatus = new BindStatus(getRequestContext(), "testBean.someNumber", false) { public PropertyEditor getEditor() { return floatEditor; } }; getPageContext().setAttribute(SelectTagHDIV.LIST_VALUE_PAGE_ATTRIBUTE, bindStatus); this.tag.setValue("${myOtherNumber}"); this.tag.setLabel("${myOtherNumber}"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); assertAttributeNotPresent(output, "selected"); assertBlockTagContains(output, "12.35f"); } public void testAsBodyTag() throws Exception { BindStatus bindStatus = new BindStatus(getRequestContext(), "testBean.name", false); getPageContext().setAttribute(SelectTag.LIST_VALUE_PAGE_ATTRIBUTE, bindStatus); String bodyContent = "some content"; this.tag.setValue("foo"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); this.tag.setBodyContent(new MockBodyContent(bodyContent, getWriter())); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); assertContainsAttribute(output, "selected", "selected"); assertBlockTagContains(output, bodyContent); } public void testAsBodyTagSelected() throws Exception { BindStatus bindStatus = new BindStatus(getRequestContext(), "testBean.name", false); getPageContext().setAttribute(SelectTag.LIST_VALUE_PAGE_ATTRIBUTE, bindStatus); String bodyContent = "some content"; this.tag.setValue("Rob Harrop"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); this.tag.setBodyContent(new MockBodyContent(bodyContent, getWriter())); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); assertBlockTagContains(output, bodyContent); } public void testAsBodyTagCollapsed() throws Exception { BindStatus bindStatus = new BindStatus(getRequestContext(), "testBean.name", false); getPageContext().setAttribute(SelectTag.LIST_VALUE_PAGE_ATTRIBUTE, bindStatus); String bodyContent = "some content"; this.tag.setValue(bodyContent); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); this.tag.setBodyContent(new MockBodyContent(bodyContent, getWriter())); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); String output = getOutput(); assertOptionTagOpened(output); assertOptionTagClosed(output); String hdivValue = this.confidentiality ? "0" : bodyContent; assertContainsAttribute(output, "value", hdivValue); assertBlockTagContains(output, bodyContent); } public void testAsBodyTagWithEditor() throws Exception { BindStatus bindStatus = new BindStatus(getRequestContext(), "testBean.stringArray", false) { public PropertyEditor getEditor() { return new RulesVariantEditor(); } }; getPageContext().setAttribute(SelectTag.LIST_VALUE_PAGE_ATTRIBUTE, bindStatus); RulesVariant rulesVariant = new RulesVariant("someRules", "someVariant"); getPageContext().getRequest().setAttribute("rule", rulesVariant); this.tag.setValue("${rule}"); int result = this.tag.doStartTag(); assertEquals(BodyTag.EVAL_BODY_BUFFERED, result); assertEquals(rulesVariant, getPageContext().getAttribute("value")); assertEquals(rulesVariant.toId(), getPageContext().getAttribute("displayValue")); result = this.tag.doEndTag(); assertEquals(Tag.EVAL_PAGE, result); } public void testMultiBind() throws Exception { BeanPropertyBindingResult result = new BeanPropertyBindingResult(new TestBean(), "testBean"); result.getPropertyAccessor().registerCustomEditor(TestBean.class, "friends", new FriendEditor()); exposeBindingResult(result); BindStatus bindStatus = new BindStatus(getRequestContext(), "testBean.friends", false); getPageContext().setAttribute(SelectTag.LIST_VALUE_PAGE_ATTRIBUTE, bindStatus); this.tag.setValue(new TestBean("foo")); this.tag.doStartTag(); this.tag.doEndTag(); } public void testOptionTagNotNestedWithinSelectTag() throws Exception { new AssertThrows(IllegalStateException.class, "Must throw an IllegalStateException when not nested within a <select/> tag.") { public void test() throws Exception { tag.setParent(null); tag.setValue("foo"); tag.doStartTag(); } }.runTest(); } private void assertOptionTagOpened(String output) { assertTrue(output.startsWith("<option")); } private void assertOptionTagClosed(String output) { assertTrue(output.endsWith("</option>")); } protected void extendRequest(MockHttpServletRequest request) { TestBean bean = new TestBean(); bean.setName("foo"); bean.setFavouriteColour(Colour.GREEN); bean.setStringArray(ARRAY); bean.setSpouse(new TestBean("Sally")); bean.setSomeNumber(new Float("12.34")); List friends = new ArrayList(); friends.add(new TestBean("bar")); friends.add(new TestBean("penc")); bean.setFriends(friends); request.setAttribute("testBean", bean); request.setAttribute("myNumber", new Float(12.34)); request.setAttribute("myOtherNumber", new Float(12.35)); } private static class TestBeanPropertyEditor extends PropertyEditorSupport { public void setAsText(String text) throws IllegalArgumentException { setValue(new TestBean(text + "k", 123)); } public String getAsText() { return ((TestBean) getValue()).getName(); } } public static class RulesVariant implements Serializable { private String rules; private String variant; public RulesVariant(String rules, String variant) { this.setRules(rules); this.setVariant(variant); } private void setRules(String rules) { this.rules = rules; } public String getRules() { return rules; } private void setVariant(String variant) { this.variant = variant; } public String getVariant() { return variant; } public String toId() { if (this.variant != null) { return this.rules + "-" + this.variant; } else { return rules; } } public static RulesVariant fromId(String id) { String[] s = id.split("-", 2); String rules = s[0]; String variant = s.length > 1 ? s[1] : null; return new RulesVariant(rules, variant); } public boolean equals(Object obj) { if (obj instanceof RulesVariant) { RulesVariant other = (RulesVariant) obj; return this.toId().equals(other.toId()); } return false; } public int hashCode() { return this.toId().hashCode(); } } public class RulesVariantEditor extends PropertyEditorSupport { public void setAsText(String text) throws IllegalArgumentException { setValue(RulesVariant.fromId(text)); } public String getAsText() { RulesVariant rulesVariant = (RulesVariant) getValue(); return rulesVariant.toId(); } } private static class FriendEditor extends PropertyEditorSupport { public void setAsText(String text) throws IllegalArgumentException { setValue(new TestBean(text)); } public String getAsText() { return ((TestBean) getValue()).getName(); } } }