@Test
public void supportedParameters() throws Exception {
// Only @ModelAttribute arguments
assertTrue(processor.supportsParameter(paramNamedValidModelAttr));
assertTrue(processor.supportsParameter(paramModelAttr));
assertFalse(processor.supportsParameter(paramErrors));
assertFalse(processor.supportsParameter(paramInt));
assertFalse(processor.supportsParameter(paramNonSimpleType));
}
@Test
public void supportedParametersInDefaultResolutionMode() throws Exception {
processor = new ModelAttributeMethodProcessor(true);
// Only non-simple types, even if not annotated
assertTrue(processor.supportsParameter(paramNamedValidModelAttr));
assertTrue(processor.supportsParameter(paramErrors));
assertTrue(processor.supportsParameter(paramModelAttr));
assertTrue(processor.supportsParameter(paramNonSimpleType));
assertFalse(processor.supportsParameter(paramInt));
}
@Test
public void handleNotAnnotatedReturnValue() throws Exception {
TestBean testBean = new TestBean("expected");
processor.handleReturnValue(testBean, returnParamNonSimpleType, mavContainer, webRequest);
assertSame(testBean, mavContainer.getModel().get("testBean"));
}
@Test
public void resolveArgumentOrdering() throws Exception {
String name = "testBean";
Object testBean = new TestBean(name);
mavContainer.addAttribute(name, testBean);
mavContainer.addAttribute(BindingResult.MODEL_KEY_PREFIX + name, testBean);
Object anotherTestBean = new TestBean();
mavContainer.addAttribute("anotherTestBean", anotherTestBean);
StubRequestDataBinder dataBinder = new StubRequestDataBinder(testBean, name);
WebDataBinderFactory binderFactory = createMock(WebDataBinderFactory.class);
expect(binderFactory.createBinder(webRequest, testBean, name)).andReturn(dataBinder);
replay(binderFactory);
processor.resolveArgument(paramModelAttr, mavContainer, webRequest, binderFactory);
assertSame(
"Resolved attribute should be updated to be last in the order",
testBean,
mavContainer.getModel().values().toArray()[1]);
assertSame(
"BindingResult of resolved attribute should be last in the order",
dataBinder.getBindingResult(),
mavContainer.getModel().values().toArray()[2]);
}
@Test
public void resovleArgumentViaDefaultConstructor() throws Exception {
WebDataBinder dataBinder = new WebRequestDataBinder(null);
WebDataBinderFactory factory = createMock(WebDataBinderFactory.class);
expect(factory.createBinder((NativeWebRequest) anyObject(), notNull(), eq("attrName")))
.andReturn(dataBinder);
replay(factory);
processor.resolveArgument(paramNamedValidModelAttr, mavContainer, webRequest, factory);
verify(factory);
}
private void getAttributeFromModel(String expectedAttributeName, MethodParameter param)
throws Exception {
Object target = new TestBean();
mavContainer.addAttribute(expectedAttributeName, target);
WebDataBinder dataBinder = new WebRequestDataBinder(target);
WebDataBinderFactory factory = createMock(WebDataBinderFactory.class);
expect(factory.createBinder(webRequest, target, expectedAttributeName)).andReturn(dataBinder);
replay(factory);
processor.resolveArgument(param, mavContainer, webRequest, factory);
verify(factory);
}
@Test(expected = BindException.class)
public void resovleArgumentBindException() throws Exception {
String name = "testBean";
Object target = new TestBean();
mavContainer.getModel().addAttribute(target);
StubRequestDataBinder dataBinder = new StubRequestDataBinder(target, name);
dataBinder.getBindingResult().reject("error");
WebDataBinderFactory binderFactory = createMock(WebDataBinderFactory.class);
expect(binderFactory.createBinder(webRequest, target, name)).andReturn(dataBinder);
replay(binderFactory);
processor.resolveArgument(paramNonSimpleType, mavContainer, webRequest, binderFactory);
}
@Test
public void resovleArgumentValidation() throws Exception {
String name = "attrName";
Object target = new TestBean();
mavContainer.addAttribute(name, target);
StubRequestDataBinder dataBinder = new StubRequestDataBinder(target, name);
WebDataBinderFactory binderFactory = createMock(WebDataBinderFactory.class);
expect(binderFactory.createBinder(webRequest, target, name)).andReturn(dataBinder);
replay(binderFactory);
processor.resolveArgument(paramNamedValidModelAttr, mavContainer, webRequest, binderFactory);
assertTrue(dataBinder.isBindInvoked());
assertTrue(dataBinder.isValidateInvoked());
}
@Test
public void handleAnnotatedReturnValue() throws Exception {
processor.handleReturnValue("expected", returnParamNamedModelAttr, mavContainer, webRequest);
assertEquals("expected", mavContainer.getModel().get("modelAttrName"));
}
@Test
public void bindExceptionNotRequired() throws Exception {
assertFalse(processor.isBindExceptionRequired(null, paramNamedValidModelAttr));
}
@Test
public void bindExceptionRequired() throws Exception {
assertTrue(processor.isBindExceptionRequired(null, paramNonSimpleType));
}
@Test
public void supportedReturnTypesInDefaultResolutionMode() throws Exception {
processor = new ModelAttributeMethodProcessor(true);
assertTrue(processor.supportsReturnType(returnParamNamedModelAttr));
assertTrue(processor.supportsReturnType(returnParamNonSimpleType));
}
@Test
public void supportedReturnTypes() throws Exception {
processor = new ModelAttributeMethodProcessor(false);
assertTrue(processor.supportsReturnType(returnParamNamedModelAttr));
assertFalse(processor.supportsReturnType(returnParamNonSimpleType));
}