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/*
* Copyright (c) 2018 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.Fact.fact;
import static com.google.common.truth.Fact.simpleFact;
import static com.google.common.truth.TruthFailureSubject.HOW_TO_TEST_KEYS_WITHOUT_VALUES;
import static com.google.common.truth.TruthFailureSubject.truthFailures;
import static org.junit.Assert.fail;
import com.google.common.collect.ImmutableList;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link TruthFailureSubject}. */
@RunWith(JUnit4.class)
public class TruthFailureSubjectTest extends BaseSubjectTestCase {
// factKeys()
@Test
public void factKeys() {
assertThat(fact("foo", "the foo")).factKeys().containsExactly("foo");
}
@Test
public void factKeysNoValue() {
assertThat(simpleFact("foo")).factKeys().containsExactly("foo");
}
@Test
public void factKeysFail() {
expectFailureWhenTestingThat(fact("foo", "the foo")).factKeys().containsExactly("bar");
Truth.assertThat(expectFailure.getFailure())
.hasMessageThat()
.contains("value of: failure.factKeys()");
// TODO(cpovirk): Switch to using fact-based assertions once IterableSubject uses them.
}
// factValue(String)
@Test
public void factValue() {
assertThat(fact("foo", "the foo")).factValue("foo").isEqualTo("the foo");
}
@Test
public void factValueFailWrongValue() {
expectFailureWhenTestingThat(fact("foo", "the foo")).factValue("foo").isEqualTo("the bar");
assertFailureValue("value of", "failure.factValue(foo)");
}
@Test
public void factValueFailNoSuchKey() {
Object unused = expectFailureWhenTestingThat(fact("foo", "the foo")).factValue("bar");
assertFailureKeys("expected to contain fact", "but contained only");
assertFailureValue("expected to contain fact", "bar");
assertFailureValue("but contained only", "[foo]");
}
@Test
public void factValueFailMultipleKeys() {
Object unused =
expectFailureWhenTestingThat(fact("foo", "the foo"), fact("foo", "the other foo"))
.factValue("foo");
assertFailureKeys("expected to contain a single fact with key", "but contained multiple");
assertFailureValue("expected to contain a single fact with key", "foo");
assertFailureValue("but contained multiple", "[foo: the foo, foo: the other foo]");
}
@Test
public void factValueFailNoValue() {
Object unused = expectFailureWhenTestingThat(simpleFact("foo")).factValue("foo");
assertFailureKeys(
"expected to have a value",
"for key",
"but the key was present with no value",
HOW_TO_TEST_KEYS_WITHOUT_VALUES.key);
assertFailureValue("for key", "foo");
}
// factValue(String, int)
@Test
public void factValueInt() {
assertThat(fact("foo", "the foo")).factValue("foo", 0).isEqualTo("the foo");
}
@Test
public void factValueIntMultipleKeys() {
assertThat(fact("foo", "the foo"), fact("foo", "the other foo"))
.factValue("foo", 1)
.isEqualTo("the other foo");
}
@Test
public void factValueIntFailNegative() {
try {
assertThat(fact("foo", "the foo")).factValue("foo", -1);
fail();
} catch (IllegalArgumentException expected) {
}
}
@Test
public void factValueIntFailWrongValue() {
expectFailureWhenTestingThat(fact("foo", "the foo")).factValue("foo", 0).isEqualTo("the bar");
assertFailureValue("value of", "failure.factValue(foo, 0)");
}
@Test
public void factValueIntFailNoSuchKey() {
Object unused = expectFailureWhenTestingThat(fact("foo", "the foo")).factValue("bar", 0);
assertFailureKeys("expected to contain fact", "but contained only");
assertFailureValue("expected to contain fact", "bar");
assertFailureValue("but contained only", "[foo]");
}
@Test
public void factValueIntFailNotEnoughWithKey() {
Object unused = expectFailureWhenTestingThat(fact("foo", "the foo")).factValue("foo", 5);
assertFailureKeys("for key", "index too high", "fact count was");
assertFailureValue("for key", "foo");
assertFailureValue("index too high", "5");
assertFailureValue("fact count was", "1");
}
@Test
public void factValueIntFailNoValue() {
Object unused = expectFailureWhenTestingThat(simpleFact("foo")).factValue("foo", 0);
assertFailureKeys(
"expected to have a value",
"for key",
"and index",
"but the key was present with no value",
HOW_TO_TEST_KEYS_WITHOUT_VALUES.key);
assertFailureValue("for key", "foo");
assertFailureValue("and index", "0");
}
// other tests
@Test
public void nonTruthErrorFactKeys() {
Object unused = expectFailureWhenTestingThat(new AssertionError()).factKeys();
assertFailureKeys("expected a failure thrown by Truth's new failure API", "but was");
}
@Test
public void nonTruthErrorFactValue() {
Object unused = expectFailureWhenTestingThat(new AssertionError()).factValue("foo");
assertFailureKeys("expected a failure thrown by Truth's new failure API", "but was");
}
private TruthFailureSubject assertThat(Fact... facts) {
return ExpectFailure.assertThat(failure(facts));
}
private TruthFailureSubject expectFailureWhenTestingThat(Fact... facts) {
return expectFailureWhenTestingThat(failure(facts));
}
private TruthFailureSubject expectFailureWhenTestingThat(AssertionError failure) {
return (TruthFailureSubject) expectFailure.whenTesting().about(truthFailures()).that(failure);
}
private AssertionErrorWithFacts failure(Fact... facts) {
return new AssertionErrorWithFacts(
ImmutableList.<String>of(), ImmutableList.copyOf(facts), /* cause= */ null);
}
}
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