/*
* Copyright (c) 2011 Google, Inc.
*
* 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 com.google.common.truth;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assert_;
import static com.google.common.truth.TruthJUnit.assume;
import static com.google.common.truth.delegation.FooSubject.FOO;
import static org.junit.Assert.fail;
import com.google.common.collect.Range;
import com.google.common.truth.Expect;
import com.google.common.truth.delegation.Foo;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.theories.DataPoints;
import org.junit.experimental.theories.Theories;
import org.junit.experimental.theories.Theory;
import org.junit.runner.RunWith;
import java.util.Arrays;
@RunWith(Theories.class)
public class ExampleTest {
@Test public void stringContains() {
assertThat("abc").contains("c");
}
@Test public void listHasElements() {
// single item
assertThat(Arrays.asList(1, 2, 3)).contains(1);
// at least these items
assertThat(Arrays.asList(1, 2, 3)).has().allOf(1, 2);
// at least one of these items
assertThat(Arrays.asList(1, 2, 3)).has().anyOf(1, 5);
}
@Test public void equalityFail() {
int x = 2 + 2;
try {
assertThat(x).isEqualTo(5);
fail("Should have thrown");
} catch (AssertionError expected) {
assertThat(expected.getMessage()).contains("Not true that <4> is equal to <5>");
}
}
@DataPoints public static int[] ints = { -1, 0, 1, 2 };
@Theory public void divideBySelf(int x) {
assume().that(x).isNotEqualTo(0);
assertThat(x / x).isEqualTo(1);
}
@Rule public final Expect EXPECT = Expect.create();
@Test public void expectRange() {
int x = 4;
EXPECT.that(x).isNotNull();
EXPECT.that(x).isIn(Range.open(3, 5));
EXPECT.that(x).isEqualTo(4);
}
@Test public void customTypeCompares() {
assert_().about(FOO).that(new Foo(5)).matches(new Foo(2 + 3));
}
}