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c458c05801
The dark lord Gosling designed the Java package naming system so that ownership flows from the DNS system. Since we own the domain name registry.google, it seems only appropriate that we should use google.registry as our package name.
107 lines
3.9 KiB
Java
107 lines
3.9 KiB
Java
// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.testing;
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import static com.google.common.base.Preconditions.checkState;
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import static com.google.common.base.Strings.nullToEmpty;
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import static com.google.common.base.Throwables.getRootCause;
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import static google.registry.flows.EppXmlTransformer.marshal;
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import google.registry.flows.EppException;
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import google.registry.model.eppcommon.Trid;
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import google.registry.model.eppoutput.EppOutput;
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import google.registry.model.eppoutput.Response;
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import google.registry.util.Clock;
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import google.registry.util.SystemClock;
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import google.registry.xml.ValidationMode;
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import org.junit.rules.TestRule;
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import org.junit.runner.Description;
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import org.junit.runners.model.Statement;
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import javax.annotation.Nullable;
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/**
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* A test rule similar to JUnit's {@code ExpectedException} rule that does extra checking to ensure
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* that {@link EppException} derivatives have EPP-compliant error messages.
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*/
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public class ExceptionRule implements TestRule {
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private static final Clock CLOCK = new SystemClock();
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@Nullable
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Class<? extends Throwable> expectedExceptionClass;
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@Nullable
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String expectedMessage;
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private boolean useRootCause;
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@Override
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public Statement apply(final Statement base, Description description) {
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return new Statement() {
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@Override
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public void evaluate() throws Throwable {
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try {
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base.evaluate();
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if (expectedExceptionClass != null) {
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throw new AssertionError(String.format(
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"Expected test to throw %s%s",
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expectedExceptionClass.getSimpleName(),
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expectedMessage == null ? "" : (" with message: " + expectedMessage)));
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}
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} catch (Throwable e) {
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Throwable cause = useRootCause ? getRootCause(e) : e;
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if (expectedExceptionClass == null
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|| !(expectedExceptionClass.isAssignableFrom(cause.getClass())
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&& nullToEmpty(cause.getMessage()).contains(nullToEmpty(expectedMessage)))) {
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throw e; // We didn't expect this so pass it through.
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}
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if (e instanceof EppException) {
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// Attempt to marshall the exception to EPP. If it doesn't work, this will throw.
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marshal(
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EppOutput.create(new Response.Builder()
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.setTrid(Trid.create(null))
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.setResult(((EppException) e).getResult())
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.setExecutionTime(CLOCK.nowUtc())
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.build()),
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ValidationMode.STRICT);
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}
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}
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}};
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}
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public void expect(Class<? extends Throwable> expectedExceptionClass) {
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checkState(this.expectedExceptionClass == null,
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"Don't use multiple `thrown.expect()` statements in your test.");
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this.expectedExceptionClass = expectedExceptionClass;
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}
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public void expect(Class<? extends Throwable> expectedExceptionClass, String expectedMessage) {
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expect(expectedExceptionClass);
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this.expectedMessage = expectedMessage;
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}
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public void expectRootCause(Class<? extends Throwable> expectedExceptionClass) {
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expect(expectedExceptionClass);
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this.useRootCause = true;
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}
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public void expectRootCause(
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Class<? extends Throwable> expectedExceptionClass, String expectedMessage) {
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expect(expectedExceptionClass, expectedMessage);
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this.useRootCause = true;
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}
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}
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