/*
* Copyright 2010-2013 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.data.gemfire.snapshot.filter;
import static org.hamcrest.CoreMatchers.*;
import static org.hamcrest.CoreMatchers.isA;
import static org.junit.Assert.*;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.*;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.geode.cache.snapshot.SnapshotFilter;
import org.junit.Test;
import org.springframework.data.gemfire.TestUtils;
import org.springframework.data.gemfire.snapshot.filter.ComposableSnapshotFilter.Operator;
/**
* The ComposableSnapshotFilterTest class is a test suite of test cases testing the contract and functionality
* of the ComposableSnapshotFilter class.
*
* @author John Blum
* @see org.junit.Test
* @see org.mockito.Mockito
* @see org.springframework.data.gemfire.snapshot.filter.ComposableSnapshotFilter
* @see org.springframework.data.gemfire.snapshot.filter.ComposableSnapshotFilter.Operator
* @see org.apache.geode.cache.snapshot.SnapshotFilter
* @since 1.7.0
*/
public class ComposableSnapshotFilterTest {
private static final AtomicInteger ID_SEQUENCE = new AtomicInteger(0);
@SuppressWarnings("unchecked")
protected SnapshotFilter mockSnapshotFilter(boolean accept) {
SnapshotFilter mockSnapshotFilter = mock(SnapshotFilter.class, String.format(
"MockSnapshotFilter-%1$d", ID_SEQUENCE.incrementAndGet()));
when(mockSnapshotFilter.accept((Map.Entry) any())).thenReturn(accept);
return mockSnapshotFilter;
}
@Test
public void operatorIdentityIsSuccessful() {
assertThat(Operator.AND.isAnd(), is(true));
assertThat(Operator.AND.isOr(), is(false));
assertThat(Operator.OR.isAnd(), is(false));
assertThat(Operator.OR.isOr(), is(true));
}
@Test
public void andOperatorOperationIsValid() {
assertThat(Operator.AND.operate(true, true), is(true));
assertThat(Operator.AND.operate(true, false), is(false));
assertThat(Operator.AND.operate(false, true), is(false));
assertThat(Operator.AND.operate(false, false), is(false));
}
@Test
public void orOperatorOperationIsValid() {
assertThat(Operator.OR.operate(true, true), is(true));
assertThat(Operator.OR.operate(true, false), is(true));
assertThat(Operator.OR.operate(false, true), is(true));
assertThat(Operator.OR.operate(false, false), is(false));
}
@Test
public void nullSafeArrayWithNonNullArray() {
SnapshotFilter[] expectedArray = {};
assertThat(ComposableSnapshotFilter.nullSafeArray(expectedArray), is(sameInstance(expectedArray)));
}
@Test
public void nullSafeArrayWithNullArray() {
SnapshotFilter[] actualArray = ComposableSnapshotFilter.nullSafeArray((SnapshotFilter[]) null);
assertThat(actualArray, is(notNullValue()));
assertThat(actualArray.length, is(equalTo(0)));
}
@Test
public void composeSingle() {
SnapshotFilter mockSnapshotFilter = mockSnapshotFilter(false);
SnapshotFilter composedFilter = ComposableSnapshotFilter.compose(Operator.AND, mockSnapshotFilter);
assertThat(composedFilter, is(sameInstance(mockSnapshotFilter)));
}
@Test
public void composeMultiple() throws Exception {
SnapshotFilter mockSnapshotFilterOne = mockSnapshotFilter(false);
SnapshotFilter mockSnapshotFilterTwo = mockSnapshotFilter(true);
SnapshotFilter composedFilter = ComposableSnapshotFilter.compose(Operator.AND, mockSnapshotFilterOne,
mockSnapshotFilterTwo);
assertThat(composedFilter, is(not(sameInstance(mockSnapshotFilterOne))));
assertThat(composedFilter, is(not(sameInstance(mockSnapshotFilterTwo))));
assertThat((ComposableSnapshotFilter) composedFilter, isA(ComposableSnapshotFilter.class));
assertThat((SnapshotFilter) TestUtils.readField("leftOperand", composedFilter),
is(equalTo(mockSnapshotFilterTwo)));
assertThat((Operator) TestUtils.readField("operator", composedFilter), is(equalTo(Operator.AND)));
assertThat((SnapshotFilter) TestUtils.readField("rightOperand", composedFilter),
is(equalTo(mockSnapshotFilterOne)));
}
@Test
@SuppressWarnings("unchecked")
public void composeAndThenAccept() {
SnapshotFilter falseFilter = mockSnapshotFilter(false);
SnapshotFilter trueFilter = mockSnapshotFilter(true);
SnapshotFilter composedFilter = ComposableSnapshotFilter.and(trueFilter, trueFilter);
assertThat((ComposableSnapshotFilter) composedFilter, isA(ComposableSnapshotFilter.class));
assertThat(composedFilter.accept(null), is(true));
composedFilter = ComposableSnapshotFilter.and(falseFilter, trueFilter);
assertThat((ComposableSnapshotFilter) composedFilter, isA(ComposableSnapshotFilter.class));
assertThat(composedFilter.accept(null), is(false));
composedFilter = ComposableSnapshotFilter.and(falseFilter, falseFilter);
assertThat((ComposableSnapshotFilter) composedFilter, isA(ComposableSnapshotFilter.class));
assertThat(composedFilter.accept(null), is(false));
}
@Test
@SuppressWarnings("unchecked")
public void composeOrThenAccept() {
SnapshotFilter falseFilter = mockSnapshotFilter(false);
SnapshotFilter trueFilter = mockSnapshotFilter(true);
SnapshotFilter composedFilter = ComposableSnapshotFilter.or(trueFilter, trueFilter);
assertThat((ComposableSnapshotFilter) composedFilter, isA(ComposableSnapshotFilter.class));
assertThat(composedFilter.accept(null), is(true));
composedFilter = ComposableSnapshotFilter.or(falseFilter, trueFilter);
assertThat((ComposableSnapshotFilter) composedFilter, isA(ComposableSnapshotFilter.class));
assertThat(composedFilter.accept(null), is(true));
composedFilter = ComposableSnapshotFilter.or(falseFilter, falseFilter);
assertThat((ComposableSnapshotFilter) composedFilter, isA(ComposableSnapshotFilter.class));
assertThat(composedFilter.accept(null), is(false));
}
}