SPR-8755 Add Button tag.

org.springframework.web.servlet/src/test/java/org/springframework/web/servlet/tags/form/ButtonTagTests.java

@@ -0,0 +1,91 @@
+/*
+ * Copyright 2002-2011 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.springframework.web.servlet.tags.form;
+
+import java.io.Writer;
+
+import javax.servlet.jsp.tagext.Tag;
+
+import org.springframework.beans.TestBean;
+
+/**
+ * @author Rossen Stoyanchev
+ */
+public class ButtonTagTests extends AbstractFormTagTests {
+
+	private ButtonTag tag;
+
+	protected void onSetUp() {
+		this.tag = createTag(getWriter());
+		this.tag.setParent(getFormTag());
+		this.tag.setPageContext(getPageContext());
+		this.tag.setId("My Id");
+		this.tag.setName("My Name");
+		this.tag.setValue("My Button");
+	}
+	
+	public void testButtonTag() throws Exception {
+		assertEquals(Tag.EVAL_BODY_INCLUDE, this.tag.doStartTag());
+		assertEquals(Tag.EVAL_PAGE, this.tag.doEndTag());
+		
+		String output = getOutput();
+		assertTagOpened(output);
+		assertTagClosed(output);
+
+		assertContainsAttribute(output, "id", "My Id");
+		assertContainsAttribute(output, "name", "My Name");
+		assertContainsAttribute(output, "type", "submit");
+		assertContainsAttribute(output, "value", "My Button");
+		assertAttributeNotPresent(output, "disabled");
+	}
+	
+	public void testDisabled() throws Exception {
+		this.tag.setDisabled("true");
+		
+		this.tag.doStartTag();
+		this.tag.doEndTag();
+
+		String output = getOutput();
+		assertTagOpened(output);
+		assertTagClosed(output);
+
+		assertContainsAttribute(output, "disabled", "disabled");
+	}
+	
+	@Override
+	protected TestBean createTestBean() {
+		return new TestBean();
+	}
+
+	protected final void assertTagClosed(String output) {
+		assertTrue("Tag not closed properly", output.endsWith("</button>"));
+	}
+
+	protected final void assertTagOpened(String output) {
+		assertTrue("Tag not opened properly", output.startsWith("<button "));
+	}
+	
+	@SuppressWarnings("serial")
+	protected ButtonTag createTag(final Writer writer) {
+		return new ButtonTag() {
+			protected TagWriter createTagWriter() {
+				return new TagWriter(writer);
+			}
+		};
+	}
+
+}