java - JMock 期望 IllegalArgumentException

Question

我正在尝试使用 allowing 方法来修复我的模拟对象之一的方法的返回值。我在模拟对象 jdbc 上有以下方法，我想允许这样做:

List<T> query(String sql, RowMapper<T> rowMapper)

我正在使用 with(any(RowMapper.class)) 因为我真的不在乎使用哪个 RowMapper - 我只是想确保当它使用该 SQL 调用 query 它返回一个带有 "bob" 的 List。

import java.util.Arrays;

import org.jmock.Expectations;
import org.jmock.Mockery;
import org.jmock.auto.Mock;
import org.jmock.integration.junit4.JUnitRuleMockery;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.core.simple.SimpleJdbcOperations;

public class GetCustomersPhaseTest
{
    @Rule
    public final JUnitRuleMockery mockery = new JUnitRuleMockery();

    @Mock
    private SimpleJdbcOperations jdbc;

    @Mock
    private EventPublisher events;

    @Mock
    private Context context;

    private GetCustomersPhase phase;

    @Before
    public void setup()
    {
        phase = new GetCustomersPhase(jdbc, events);
    }

    @Test
    public void testGetCustomers()
    {
        mockery.checking(new Expectations() {
            {
                allowing(jdbc).query(with(equal("SELECT Name FROM Customers")), with(any(RowMapper.class)));
                will(returnValue(Arrays.asList("Bob")));
            }
        });

        phase.execute(context);
    }
}

然而这给了我，

java.lang.IllegalArgumentException: not all parameters were given explicit matchers: either all parameters must be specified by matchers or all must be specified by values, you cannot mix matchers and values
    at org.jmock.internal.InvocationExpectationBuilder.checkParameterMatcherCount(InvocationExpectationBuilder.java:98)
    at org.jmock.internal.InvocationExpectationBuilder.createExpectationFrom(InvocationExpectationBuilder.java:91)
    at org.jmock.internal.InvocationToExpectationTranslator.invoke(InvocationToExpectationTranslator.java:19)
    at org.jmock.internal.FakeObjectMethods.invoke(FakeObjectMethods.java:38)
    at org.jmock.lib.JavaReflectionImposteriser$1.invoke(JavaReflectionImposteriser.java:33)
    at $Proxy10.query(Unknown Source)
    at com.thecat.test.GetCustomersPhaseTest$1.<init>(GetCustomersPhaseTest.java:45)
    at com.thecat.test.GetCustomersPhaseTest.testGetCustomers(GetCustomersPhaseTest.java:43)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
    at org.jmock.integration.junit4.JUnitRuleMockery$1.evaluate(JUnitRuleMockery.java:49)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

我看了这个question并尝试解决问题，但我仍然无法解决问题。

Answer 1

SimpleJdbcOperations#query 将 Object... 作为最终参数。发生错误是因为 with 方法没有考虑到这一点，我认为这是因为这会编译为将一个空数组传递给这个没有考虑到的方法。

如果你使用，它会起作用，

allowing(jdbc).query(with(equal("SELECT Name FROM Customers")), with(any(RowMapper.class)), with(equal(new Object[0])));
will(returnValue(Arrays.asList("Bob")));