Add auto imports for integration testing

JUnit tests can now be @SpringApplicationConfiguration
and @IntegrationTest without any explicit imports. Also
makes @RunWith(SpringJUnit4ClassRunner) optional.

Fixes gh-969

spring-boot-cli/src/main/java/org/springframework/boot/cli/compiler/autoconfigure/JUnitCompilerAutoConfiguration.java

@@ -38,12 +38,14 @@ public class JUnitCompilerAutoConfiguration extends CompilerAutoConfiguration {
 	@Override
 	public void applyDependencies(DependencyCustomizer dependencies)
 			throws CompilationFailedException {
-		dependencies.add("junit").add("spring-test", "hamcrest-library");
+		dependencies.add("spring-boot-starter-test");
 	}
 
 	@Override
-	public void applyImports(ImportCustomizer imports) throws CompilationFailedException {
-		imports.addStarImports("org.junit").addStaticStars("org.junit.Assert")
+	public void applyImports(ImportCustomizer imports)
+			throws CompilationFailedException {
+		imports.addStarImports("org.junit")
+				.addStaticStars("org.junit.Assert")
 				.addStaticStars("org.hamcrest.MatcherAssert")
 				.addStaticStars("org.hamcrest.Matchers");
 	}

spring-boot-cli/src/main/java/org/springframework/boot/cli/compiler/autoconfigure/SpringTestCompilerAutoConfiguration.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2012-2013 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.boot.cli.compiler.autoconfigure;
+
+import groovy.lang.GroovyClassLoader;
+
+import org.codehaus.groovy.ast.AnnotationNode;
+import org.codehaus.groovy.ast.ClassHelper;
+import org.codehaus.groovy.ast.ClassNode;
+import org.codehaus.groovy.ast.expr.ClassExpression;
+import org.codehaus.groovy.classgen.GeneratorContext;
+import org.codehaus.groovy.control.CompilationFailedException;
+import org.codehaus.groovy.control.SourceUnit;
+import org.codehaus.groovy.control.customizers.ImportCustomizer;
+import org.springframework.boot.cli.compiler.AstUtils;
+import org.springframework.boot.cli.compiler.CompilerAutoConfiguration;
+import org.springframework.boot.cli.compiler.GroovyCompilerConfiguration;
+
+/**
+ * {@link CompilerAutoConfiguration} for Spring Test
+ * 
+ * @author Dave Syer
+ */
+public class SpringTestCompilerAutoConfiguration extends CompilerAutoConfiguration {
+
+	@Override
+	public boolean matches(ClassNode classNode) {
+		return AstUtils.hasAtLeastOneAnnotation(classNode, "SpringApplicationConfiguration");
+	}
+	
+	@Override
+	public void apply(GroovyClassLoader loader,
+			GroovyCompilerConfiguration configuration,
+			GeneratorContext generatorContext, SourceUnit source,
+			ClassNode classNode) throws CompilationFailedException {
+		if (!AstUtils.hasAtLeastOneAnnotation(classNode, "RunWith")) {
+			AnnotationNode runwith = new AnnotationNode(ClassHelper.make("RunWith"));
+			runwith.addMember("value", new ClassExpression(ClassHelper.make("SpringJUnit4ClassRunner")));
+			classNode.addAnnotation(runwith);
+		}
+	}
+
+	@Override
+	public void applyImports(ImportCustomizer imports)
+			throws CompilationFailedException {
+		imports.addStarImports("org.junit.runner")
+				.addStarImports("org.springframework.boot.test")
+				.addStarImports("org.springframework.test.context.junit4");
+	}
+}

spring-boot-cli/src/main/java/org/springframework/boot/cli/compiler/grape/DependencyResolutionFailedException.java

@@ -21,6 +21,7 @@ package org.springframework.boot.cli.compiler.grape;
  * 
  * @author Andy Wilkinson
  */
+@SuppressWarnings("serial")
 public class DependencyResolutionFailedException extends RuntimeException {
 
 	/**