databindertests.java

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	public void testBindingWithOverlappingAllowedAndDisallowedFields() throws Exception {
		TestBean rod = new TestBean();
		DataBinder binder = new DataBinder(rod);
		binder.setAllowedFields(new String[] {"name", "age"});
		binder.setDisallowedFields(new String[] {"age"});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("name", "Rod");
		pvs.addPropertyValue("age", "32x");

		binder.bind(pvs);
		binder.close();
		assertTrue("changed name correctly", rod.getName().equals("Rod"));
		assertTrue("did not change age", rod.getAge() == 0);
		String[] disallowedFields = binder.getBindingResult().getSuppressedFields();
		assertEquals(1, disallowedFields.length);
		assertEquals("age", disallowedFields[0]);
	}

	public void testBindingWithAllowedFieldsUsingAsterisks() throws Exception {
		TestBean rod = new TestBean();
		DataBinder binder = new DataBinder(rod, "person");
		binder.setAllowedFields(new String[] {"nam*", "*ouchy"});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("name", "Rod");
		pvs.addPropertyValue("touchy", "Rod");
		pvs.addPropertyValue("age", "32x");

		binder.bind(pvs);
		binder.close();

		assertTrue("changed name correctly", "Rod".equals(rod.getName()));
		assertTrue("changed touchy correctly", "Rod".equals(rod.getTouchy()));
		assertTrue("did not change age", rod.getAge() == 0);
		String[] disallowedFields = binder.getBindingResult().getSuppressedFields();
		assertEquals(1, disallowedFields.length);
		assertEquals("age", disallowedFields[0]);

		Map m = binder.getBindingResult().getModel();
		assertTrue("There is one element in map", m.size() == 2);
		TestBean tb = (TestBean) m.get("person");
		assertTrue("Same object", tb.equals(rod));
	}

	public void testBindingWithAllowedAndDisallowedMapFields() throws Exception {
		TestBean rod = new TestBean();
		DataBinder binder = new DataBinder(rod);
		binder.setAllowedFields(new String[] {"someMap[key1]", "someMap[key2]"});
		binder.setDisallowedFields(new String[] {"someMap['key3']", "someMap[key4]"});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("someMap[key1]", "value1");
		pvs.addPropertyValue("someMap['key2']", "value2");
		pvs.addPropertyValue("someMap[key3]", "value3");
		pvs.addPropertyValue("someMap['key4']", "value4");

		binder.bind(pvs);
		binder.close();
		assertEquals("value1", rod.getSomeMap().get("key1"));
		assertEquals("value2", rod.getSomeMap().get("key2"));
		assertNull(rod.getSomeMap().get("key3"));
		assertNull(rod.getSomeMap().get("key4"));
		String[] disallowedFields = binder.getBindingResult().getSuppressedFields();
		assertEquals(2, disallowedFields.length);
		assertEquals("someMap[key3]", disallowedFields[0]);
		assertEquals("someMap[key4]", disallowedFields[1]);
	}

	/**
	 * Tests for required field, both null, non-existing and empty strings.
	 */
	public void testBindingWithRequiredFields() throws Exception {
		TestBean tb = new TestBean();
		tb.setSpouse(new TestBean());

		DataBinder binder = new DataBinder(tb, "person");
		binder.setRequiredFields(new String[] {"touchy", "name", "age", "date", "spouse.name"});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("touchy", "");
		pvs.addPropertyValue("name", null);
		pvs.addPropertyValue("age", null);
		pvs.addPropertyValue("spouse.name", "     ");

		binder.bind(pvs);

		BindingResult br = binder.getBindingResult();
		assertEquals("Wrong number of errors", 5, br.getErrorCount());

		assertEquals("required", br.getFieldError("touchy").getCode());
		assertEquals("", br.getFieldValue("touchy"));
		assertEquals("required", br.getFieldError("name").getCode());
		assertEquals("", br.getFieldValue("name"));
		assertEquals("required", br.getFieldError("age").getCode());
		assertEquals("", br.getFieldValue("age"));
		assertEquals("required", br.getFieldError("date").getCode());
		assertEquals("", br.getFieldValue("date"));
		assertEquals("required", br.getFieldError("spouse.name").getCode());
		assertEquals("", br.getFieldValue("spouse.name"));
	}

	public void testBindingWithRequiredMapFields() throws Exception {
		TestBean tb = new TestBean();
		tb.setSpouse(new TestBean());

		DataBinder binder = new DataBinder(tb, "person");
		binder.setRequiredFields(new String[] {"someMap[key1]", "someMap[key2]", "someMap['key3']", "someMap[key4]"});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("someMap[key1]", "value1");
		pvs.addPropertyValue("someMap['key2']", "value2");
		pvs.addPropertyValue("someMap[key3]", "value3");

		binder.bind(pvs);

		BindingResult br = binder.getBindingResult();
		assertEquals("Wrong number of errors", 1, br.getErrorCount());
		assertEquals("required", br.getFieldError("someMap[key4]").getCode());
	}

	public void testBindingWithNestedObjectCreation() throws Exception {
		TestBean tb = new TestBean();

		DataBinder binder = new DataBinder(tb, "person");
		binder.registerCustomEditor(ITestBean.class, new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue(new TestBean());
			}
		});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("spouse", "someValue");
		pvs.addPropertyValue("spouse.name", "test");
		binder.bind(pvs);

		assertNotNull(tb.getSpouse());
		assertEquals("test", tb.getSpouse().getName());
	}

	public void testCustomEditorForSingleProperty() {
		TestBean tb = new TestBean();
		tb.setSpouse(new TestBean());
		DataBinder binder = new DataBinder(tb, "tb");

		binder.registerCustomEditor(String.class, "name", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue("prefix" + text);
			}
			public String getAsText() {
				return ((String) getValue()).substring(6);
			}
		});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("name", "value");
		pvs.addPropertyValue("touchy", "value");
		pvs.addPropertyValue("spouse.name", "sue");
		binder.bind(pvs);

		binder.getBindingResult().rejectValue("name", "someCode", "someMessage");
		binder.getBindingResult().rejectValue("touchy", "someCode", "someMessage");
		binder.getBindingResult().rejectValue("spouse.name", "someCode", "someMessage");

		assertEquals("", binder.getBindingResult().getNestedPath());
		assertEquals("value", binder.getBindingResult().getFieldValue("name"));
		assertEquals("prefixvalue", binder.getBindingResult().getFieldError("name").getRejectedValue());
		assertEquals("prefixvalue", tb.getName());
		assertEquals("value", binder.getBindingResult().getFieldValue("touchy"));
		assertEquals("value", binder.getBindingResult().getFieldError("touchy").getRejectedValue());
		assertEquals("value", tb.getTouchy());

		assertTrue(binder.getBindingResult().hasFieldErrors("spouse.*"));
		assertEquals(1, binder.getBindingResult().getFieldErrorCount("spouse.*"));
		assertEquals("spouse.name", binder.getBindingResult().getFieldError("spouse.*").getField());
	}

	public void testCustomEditorForPrimitiveProperty() {
		TestBean tb = new TestBean();
		DataBinder binder = new DataBinder(tb, "tb");

		binder.registerCustomEditor(int.class, "age", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue(new Integer(99));
			}
			public String getAsText() {
				return "argh";
			}
		});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("age", "");
		binder.bind(pvs);

		assertEquals("argh", binder.getBindingResult().getFieldValue("age"));
		assertEquals(99, tb.getAge());
	}

	public void testCustomEditorForAllStringProperties() {
		TestBean tb = new TestBean();
		DataBinder binder = new DataBinder(tb, "tb");

		binder.registerCustomEditor(String.class, null, new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue("prefix" + text);
			}
			public String getAsText() {
				return ((String) getValue()).substring(6);
			}
		});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("name", "value");
		pvs.addPropertyValue("touchy", "value");
		binder.bind(pvs);

		binder.getBindingResult().rejectValue("name", "someCode", "someMessage");
		binder.getBindingResult().rejectValue("touchy", "someCode", "someMessage");

		assertEquals("value", binder.getBindingResult().getFieldValue("name"));
		assertEquals("prefixvalue", binder.getBindingResult().getFieldError("name").getRejectedValue());
		assertEquals("prefixvalue", tb.getName());
		assertEquals("value", binder.getBindingResult().getFieldValue("touchy"));
		assertEquals("prefixvalue", binder.getBindingResult().getFieldError("touchy").getRejectedValue());
		assertEquals("prefixvalue", tb.getTouchy());
	}

	public void testCustomEditorWithOldValueAccess() {
		TestBean tb = new TestBean();
		DataBinder binder = new DataBinder(tb, "tb");

		binder.registerCustomEditor(String.class, null, new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				if (getValue() == null || !text.equalsIgnoreCase(getValue().toString())) {
					setValue(text);
				}
			}
		});

		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("name", "value");
		binder.bind(pvs);
		assertEquals("value", tb.getName());

		pvs = new MutablePropertyValues();
		pvs.addPropertyValue("name", "vaLue");
		binder.bind(pvs);
		assertEquals("value", tb.getName());
	}

	public void testValidatorNoErrors() {
		TestBean tb = new TestBean();
		tb.setAge(33);
		tb.setName("Rod");
		try {
			tb.setTouchy("Rod");
		}
		catch (Exception e) {
			fail("Should not throw any Exception");
		}
		TestBean tb2 = new TestBean();
		tb2.setAge(34);
		tb.setSpouse(tb2);
		DataBinder db = new DataBinder(tb, "tb");
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue("spouse.age", "argh");
		db.bind(pvs);
		Errors errors = db.getBindingResult();
		Validator testValidator = new TestBeanValidator();
		testValidator.validate(tb, errors);

		errors.setNestedPath("spouse");
		assertEquals("spouse.", errors.getNestedPath());
		assertEquals("argh", errors.getFieldValue("age"));
		Validator spouseValidator = new SpouseValidator();
		spouseValidator.validate(tb.getSpouse(), errors);

		errors.setNestedPath("");
		assertEquals("", errors.getNestedPath());
		errors.pushNestedPath("spouse");
		assertEquals("spouse.", errors.getNestedPath());
		errors.pushNestedPath("spouse");
		assertEquals("spouse.spouse.", errors.getNestedPath());
		errors.popNestedPath();
		assertEquals("spouse.", errors.getNestedPath());
		errors.popNestedPath();
		assertEquals("", errors.getNestedPath());
		try {
			errors.popNestedPath();
		}
		catch (IllegalStateException ex) {
			// expected, because stack was empty
		}
		errors.pushNestedPath("spouse");
		assertEquals("spouse.", errors.getNestedPath());
		errors.setNestedPath("");
		assertEquals("", errors.getNestedPath());
		try {
			errors.popNestedPath();
		}
		catch (IllegalStateException ex) {
			// expected, because stack was reset by setNestedPath
		}

		errors.pushNestedPath("spouse");
		assertEquals("spouse.", errors.getNestedPath());

		assertEquals(1, errors.getErrorCount());
		assertTrue(!errors.hasGlobalErrors());
		assertEquals(1, errors.getFieldErrorCount("age"));
		assertTrue(!errors.hasFieldErrors("name"));
	}