SHL-103 Create simple way to test the execution of shell commands. Add missing files from previous commit

src/test/java/org/springframework/shell/commands/BuiltInCommandTests.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2013 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.shell.commands;
+
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.util.Date;
+import java.util.Locale;
+import java.util.concurrent.TimeUnit;
+
+import org.hamcrest.MatcherAssert;
+import org.junit.Test;
+import org.springframework.shell.Bootstrap;
+import org.springframework.shell.core.CommandResult;
+import org.springframework.shell.core.JLineShellComponent;
+
+import uk.co.it.modular.hamcrest.date.DateMatchers;
+
+public class BuiltInCommandTests {
+	
+	@Test
+	public void dateTest() throws ParseException {
+		Bootstrap bootstrap = new Bootstrap();
+		
+		JLineShellComponent shell = bootstrap.getJLineShellComponent();
+		
+		CommandResult cr = shell.executeCommand("date");
+		
+		DateFormat df = DateFormat.getDateTimeInstance(DateFormat.FULL, DateFormat.FULL,Locale.US);
+		Date result = df.parse(cr.getResult().toString());
+		Date now = new Date();
+		MatcherAssert.assertThat(now, DateMatchers.within(5, TimeUnit.SECONDS, result));		
+		
+	}
+	
+
+
+}