net.kaczmarzyk.spring.data.jpa.web.SimpleSpecificationResolverOnTypeMismatchTest.java Source code

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Here is the source code for net.kaczmarzyk.spring.data.jpa.web.SimpleSpecificationResolverOnTypeMismatchTest.java

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/**
 * Copyright 2014-2016 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 net.kaczmarzyk.spring.data.jpa.web;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.junit.Test;
import org.springframework.core.MethodParameter;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.web.context.request.NativeWebRequest;

import net.kaczmarzyk.spring.data.jpa.domain.EmptyResultOnTypeMismatch;
import net.kaczmarzyk.spring.data.jpa.domain.Equal;
import net.kaczmarzyk.spring.data.jpa.domain.WithoutTypeConversion;
import net.kaczmarzyk.spring.data.jpa.web.annotation.OnTypeMismatch;
import net.kaczmarzyk.spring.data.jpa.web.annotation.Spec;

public class SimpleSpecificationResolverOnTypeMismatchTest extends ResolverTestBase {

    SimpleSpecificationResolver resolver = new SimpleSpecificationResolver();

    @Test
    public void usesEmptyResultSpecWrapperWhenSpecified() throws Exception {
        MethodParameter param = MethodParameter
                .forMethodOrConstructor(testMethod("testMethodWithOnTypeMismatchConfig"), 0);
        NativeWebRequest req = mock(NativeWebRequest.class);
        when(req.getParameterValues("thePath")).thenReturn(new String[] { "theValue" });

        Specification<?> resolved = resolver.resolveArgument(param, null, req, null);

        assertThat(resolved).isInstanceOf(EmptyResultOnTypeMismatch.class);

        assertThat(((EmptyResultOnTypeMismatch<?>) resolved).getWrappedSpec())
                .isEqualTo(new Equal<>("thePath", new String[] { "theValue" }, defaultConverter));
    }

    @Test
    public void doesNotWrapWithEmptyResultSpecWhenSpecificationDoesntRequireDataConversion() throws Exception {
        MethodParameter param = MethodParameter
                .forMethodOrConstructor(testMethod("testMethodWithSpecWithoutDataConversion"), 0);
        NativeWebRequest req = mock(NativeWebRequest.class);
        when(req.getParameterValues("thePath")).thenReturn(new String[] { "theValue" });

        Specification<?> resolved = resolver.resolveArgument(param, null, req, null);

        assertThat(resolved).isNotInstanceOf(EmptyResultOnTypeMismatch.class)
                .isInstanceOf(SpecWithoutDataConversion.class);
    }

    public static class SpecWithoutDataConversion implements Specification<Object>, WithoutTypeConversion {

        public SpecWithoutDataConversion(String path, String[] args) {
        }

        @Override
        public Predicate toPredicate(Root<Object> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
            return null;
        }
    }

    public static class TestController {

        public void testMethodWithSpecWithoutDataConversion(
                @Spec(path = "thePath", spec = SpecWithoutDataConversion.class, onTypeMismatch = OnTypeMismatch.EMPTY_RESULT) Specification<Object> spec) {
        };

        public void testMethodWithOnTypeMismatchConfig(
                @Spec(path = "thePath", spec = Equal.class, onTypeMismatch = OnTypeMismatch.EMPTY_RESULT) Specification<Object> spec) {
        }
    }

    @Override
    protected Class<?> controllerClass() {
        return TestController.class;
    }
}