| // *************************************************************************************************************************** |
| // * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file * |
| // * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file * |
| // * to you 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.apache.juneau.assertions; |
| |
| import static java.util.Collections.*; |
| import static org.apache.juneau.common.internal.ArgUtils.*; |
| import static org.apache.juneau.common.internal.ThrowableUtils.*; |
| import static org.apache.juneau.internal.CollectionUtils.list; |
| |
| import java.io.*; |
| import java.util.*; |
| import java.util.function.*; |
| |
| import org.apache.juneau.cp.*; |
| import org.apache.juneau.internal.*; |
| import org.apache.juneau.serializer.*; |
| |
| /** |
| * Used for fluent assertion calls against throwables. |
| * |
| * <h5 class='section'>Test Methods:</h5> |
| * <p> |
| * <ul class='javatree'> |
| * <li class='jc'>{@link FluentObjectAssertion} |
| * <ul class='javatreec'> |
| * <li class='jm'>{@link FluentObjectAssertion#isExists() isExists()} |
| * <li class='jm'>{@link FluentObjectAssertion#is(Object) is(Object)} |
| * <li class='jm'>{@link FluentObjectAssertion#is(Predicate) is(Predicate)} |
| * <li class='jm'>{@link FluentObjectAssertion#isNot(Object) isNot(Object)} |
| * <li class='jm'>{@link FluentObjectAssertion#isAny(Object...) isAny(Object...)} |
| * <li class='jm'>{@link FluentObjectAssertion#isNotAny(Object...) isNotAny(Object...)} |
| * <li class='jm'>{@link FluentObjectAssertion#isNull() isNull()} |
| * <li class='jm'>{@link FluentObjectAssertion#isNotNull() isNotNull()} |
| * <li class='jm'>{@link FluentObjectAssertion#isString(String) isString(String)} |
| * <li class='jm'>{@link FluentObjectAssertion#isJson(String) isJson(String)} |
| * <li class='jm'>{@link FluentObjectAssertion#isSame(Object) isSame(Object)} |
| * <li class='jm'>{@link FluentObjectAssertion#isSameJsonAs(Object) isSameJsonAs(Object)} |
| * <li class='jm'>{@link FluentObjectAssertion#isSameSortedJsonAs(Object) isSameSortedJsonAs(Object)} |
| * <li class='jm'>{@link FluentObjectAssertion#isSameSerializedAs(Object, WriterSerializer) isSameSerializedAs(Object, WriterSerializer)} |
| * <li class='jm'>{@link FluentObjectAssertion#isType(Class) isType(Class)} |
| * <li class='jm'>{@link FluentObjectAssertion#isExactType(Class) isExactType(Class)} |
| * </ul> |
| * </ul> |
| * |
| * <h5 class='section'>Transform Methods:</h5> |
| * <p> |
| * <ul class='javatree'> |
| * <li class='jc'>{@link FluentThrowableAssertion} |
| * <ul class='javatreec'> |
| * <li class='jm'>{@link FluentThrowableAssertion#asMessage() asMessage()} |
| * <li class='jm'>{@link FluentThrowableAssertion#asMessages() asMessages()} |
| * <li class='jm'>{@link FluentThrowableAssertion#asLocalizedMessage() asLocalizedMessage()} |
| * <li class='jm'>{@link FluentThrowableAssertion#asLocalizedMessages() asLocalizedMessages()} |
| * <li class='jm'>{@link FluentThrowableAssertion#asStackTrace() asStackTrace()} |
| * <li class='jm'>{@link FluentThrowableAssertion#asCausedBy() asCausedBy()} |
| * <li class='jm'>{@link FluentThrowableAssertion#asCausedBy(Class) asCausedBy(Class)} |
| * <li class='jm'>{@link FluentThrowableAssertion#asFind(Class) asFind(Class)} |
| * </ul> |
| * <li class='jc'>{@link FluentObjectAssertion} |
| * <ul class='javatreec'> |
| * <li class='jm'>{@link FluentObjectAssertion#asString() asString()} |
| * <li class='jm'>{@link FluentObjectAssertion#asString(WriterSerializer) asString(WriterSerializer)} |
| * <li class='jm'>{@link FluentObjectAssertion#asString(Function) asString(Function)} |
| * <li class='jm'>{@link FluentObjectAssertion#asJson() asJson()} |
| * <li class='jm'>{@link FluentObjectAssertion#asJsonSorted() asJsonSorted()} |
| * <li class='jm'>{@link FluentObjectAssertion#asTransformed(Function) asApplied(Function)} |
| * <li class='jm'>{@link FluentObjectAssertion#asAny() asAny()} |
| * </ul> |
| * </ul> |
| * |
| * <h5 class='section'>Configuration Methods:</h5> |
| * <p> |
| * <ul class='javatree'> |
| * <li class='jc'>{@link Assertion} |
| * <ul class='javatreec'> |
| * <li class='jm'>{@link Assertion#setMsg(String, Object...) setMsg(String, Object...)} |
| * <li class='jm'>{@link Assertion#setOut(PrintStream) setOut(PrintStream)} |
| * <li class='jm'>{@link Assertion#setSilent() setSilent()} |
| * <li class='jm'>{@link Assertion#setStdOut() setStdOut()} |
| * <li class='jm'>{@link Assertion#setThrowable(Class) setThrowable(Class)} |
| * </ul> |
| * </ul> |
| * |
| * <h5 class='section'>See Also:</h5><ul> |
| * <li class='link'><a class="doclink" href="../../../../index.html#ja.Overview">Overview > juneau-assertions > Overview</a> |
| * </ul> |
| * |
| * @param <T> The throwable type. |
| * @param <R> The return type. |
| */ |
| @FluentSetters(returns="FluentThrowableAssertion<T,R>") |
| public class FluentThrowableAssertion<T extends Throwable,R> extends FluentObjectAssertion<T,R> { |
| |
| //----------------------------------------------------------------------------------------------------------------- |
| // Static |
| //----------------------------------------------------------------------------------------------------------------- |
| |
| private static final Messages MESSAGES = Messages.of(FluentThrowableAssertion.class, "Messages"); |
| private static final String |
| MSG_exceptionWasNotExpectedType = MESSAGES.getString("exceptionWasNotExpectedType"), |
| MSG_exceptionWasNotThrown = MESSAGES.getString("exceptionWasNotThrown"), |
| MSG_causedByExceptionNotExpectedType = MESSAGES.getString("causedByExceptionNotExpectedType"); |
| |
| //----------------------------------------------------------------------------------------------------------------- |
| // Instance |
| //----------------------------------------------------------------------------------------------------------------- |
| |
| /** |
| * Constructor. |
| * |
| * @param value |
| * The object being tested. |
| * <br>Can be <jk>null</jk>. |
| * @param returns |
| * The object to return after a test method is called. |
| * <br>If <jk>null</jk>, the test method returns this object allowing multiple test method calls to be |
| * used on the same assertion. |
| */ |
| public FluentThrowableAssertion(T value, R returns) { |
| this(null, value, returns); |
| } |
| |
| /** |
| * Chained constructor. |
| * |
| * <p> |
| * Used when transforming one assertion into another so that the assertion config can be used by the new assertion. |
| * |
| * @param creator |
| * The assertion that created this assertion. |
| * <br>Should be <jk>null</jk> if this is the top-level assertion. |
| * @param value |
| * The object being tested. |
| * <br>Can be <jk>null</jk>. |
| * @param returns |
| * The object to return after a test method is called. |
| * <br>If <jk>null</jk>, the test method returns this object allowing multiple test method calls to be |
| * used on the same assertion. |
| */ |
| public FluentThrowableAssertion(Assertion creator, T value, R returns) { |
| super(creator, value, returns); |
| } |
| |
| //----------------------------------------------------------------------------------------------------------------- |
| // Transform methods |
| //----------------------------------------------------------------------------------------------------------------- |
| |
| @Override /* FluentObjectAssertion */ |
| public FluentThrowableAssertion<T,R> asTransformed(Function<T,T> function) { |
| return new FluentThrowableAssertion<>(this, function.apply(orElse(null)), returns()); |
| } |
| |
| /** |
| * Returns an assertion against the throwable message. |
| * |
| * <h5 class='section'>Example:</h5> |
| * <p class='bjava'> |
| * <jc>// Asserts that the specified method throws an exception |
| * // with 'foobar' somewhere in the messages. </jc> |
| * ThrowableAssertion.<jsm>assertThrown</jsm>(() -> <jv>foo</jv>.getBar()) |
| * .asMessage() |
| * .isPattern(<js>".*foobar.*"</js>); |
| * </p> |
| * |
| * @return An assertion against the throwable message. Never <jk>null</jk>. |
| */ |
| public FluentStringAssertion<R> asMessage() { |
| return new FluentStringAssertion<>(this, map(Throwable::getMessage).orElse(null), returns()); |
| } |
| |
| /** |
| * Returns an assertion against the throwable message and all caused-by messages. |
| * |
| * <h5 class='section'>Example:</h5> |
| * <p class='bjava'> |
| * <jc>// Asserts that the specified method throws an exception with |
| * // 'foobar' somewhere in the messages. </jc> |
| * ThrowableAssertion.<jsm>assertThrown</jsm>(() -> <jv>foo</jv>.getBar()) |
| * .asMessages() |
| * .isPattern(<js>".*foobar.*"</js>); |
| * </p> |
| * |
| * @return An assertion against the throwable message. Never <jk>null</jk>. |
| */ |
| public FluentListAssertion<String,R> asMessages() { |
| List<String> l = null; |
| Throwable t = orElse(null); |
| if (t != null) { |
| if (t.getCause() == null) |
| l = singletonList(t.getMessage()); |
| else { |
| l = list(); |
| while (t != null) { |
| l.add(t.getMessage()); |
| t = t.getCause(); |
| } |
| } |
| } |
| return new FluentListAssertion<>(this, l, returns()); |
| } |
| |
| /** |
| * Returns an assertion against the throwable localized message. |
| * |
| * <h5 class='section'>Example:</h5> |
| * <p class='bjava'> |
| * <jc>// Asserts that the specified method throws an exception with |
| * // 'foobar' somewhere in the localized messages. </jc> |
| * ThrowableAssertion.<jsm>assertThrown</jsm>(() -> <jv>foo</jv>.getBar()) |
| * .asLocalizedMessage() |
| * .isPattern(<js>".*foobar.*"</js>); |
| * </p> |
| * |
| * @return An assertion against the throwable localized message. Never <jk>null</jk>. |
| */ |
| public FluentStringAssertion<R> asLocalizedMessage() { |
| return new FluentStringAssertion<>(this, map(Throwable::getLocalizedMessage).orElse(null), returns()); |
| } |
| |
| /** |
| * Returns an assertion against the throwable message and all caused-by messages. |
| * |
| * <h5 class='section'>Example:</h5> |
| * <p class='bjava'> |
| * <jc>// Asserts that the specified method throws an exception with |
| * // 'foobar' somewhere in the messages. </jc> |
| * ThrowableAssertion.<jsm>assertThrown</jsm>(() -> <jv>foo</jv>.getBar()) |
| * .asLocalizedMessages() |
| * .isPattern(<js>".*foobar.*"</js>); |
| * </p> |
| * |
| * @return An assertion against the throwable message. Never <jk>null</jk>. |
| */ |
| public FluentListAssertion<String,R> asLocalizedMessages() { |
| List<String> l = null; |
| Throwable t = orElse(null); |
| if (t != null) { |
| if (t.getCause() == null) |
| l = singletonList(t.getMessage()); |
| else { |
| l = list(); |
| while (t != null) { |
| l.add(t.getLocalizedMessage()); |
| t = t.getCause(); |
| } |
| } |
| } |
| return new FluentListAssertion<>(this, l, returns()); |
| } |
| |
| /** |
| * Returns an assertion against the throwable localized message. |
| * |
| * <h5 class='section'>Example:</h5> |
| * <p class='bjava'> |
| * <jc>// Asserts that the specified method throws an exception with |
| * // 'foobar' somewhere in the stack trace. </jc> |
| * ThrowableAssertion.<jsm>assertThrown</jsm>(() -> <jv>foo</jv>.getBar()) |
| * .asStackTrace() |
| * .isPattern(<js>"foobar"</js>); |
| * </p> |
| * |
| * @return An assertion against the throwable stacktrace. Never <jk>null</jk>. |
| */ |
| public FluentStringListAssertion<R> asStackTrace() { |
| return new FluentStringListAssertion<>(this, valueIsNull() ? null : Arrays.asList(getStackTrace(value())), returns()); |
| } |
| |
| /** |
| * Returns an assertion against the caused-by throwable. |
| * |
| * <h5 class='section'>Example:</h5> |
| * <p class='bjava'> |
| * <jc>// Asserts that the specified method throws an exception whose |
| * // caused-by message contains 'foobar'. </jc> |
| * ThrowableAssertion.<jsm>assertThrown</jsm>(() -> <jv>foo</jv>.getBar()) |
| * .asCausedBy() |
| * .asMessage() |
| * .isPattern(<js>"foobar"</js>); |
| * </p> |
| * |
| * @return An assertion against the caused-by. Never <jk>null</jk>. |
| */ |
| public FluentThrowableAssertion<Throwable,R> asCausedBy() { |
| return asCausedBy(Throwable.class); |
| } |
| |
| /** |
| * Returns an assertion against the caused-by throwable. |
| * |
| * <h5 class='section'>Example:</h5> |
| * <p class='bjava'> |
| * <jc>// Asserts that the specified method throws an exception whose |
| * // caused-by message contains 'foobar'. </jc> |
| * ThrowableAssertion.<jsm>assertThrown</jsm>(() -> <jv>foo</jv>.getBar()) |
| * .asCausedBy(RuntimeException.<jk>class</jk>) |
| * .asMessage() |
| * .isPattern(<js>"foobar"</js>); |
| * </p> |
| * |
| * @param <X> The throwable type. |
| * @param type The expected exception type. |
| * @return An assertion against the caused-by. Never <jk>null</jk>. |
| */ |
| public <X extends Throwable> FluentThrowableAssertion<X,R> asCausedBy(Class<X> type) { |
| Throwable t = map(Throwable::getCause).orElse(null); |
| if (t == null || type.isInstance(t)) |
| return new FluentThrowableAssertion<>(this, type.cast(t), returns()); |
| throw error(MSG_causedByExceptionNotExpectedType, type, t.getClass()); |
| } |
| |
| /** |
| * Returns an assertion against the throwable localized message. |
| * |
| * <h5 class='section'>Example:</h5> |
| * <p class='bjava'> |
| * <jc>// Asserts that the specified method throws an exception with a |
| * // caused-by RuntimeException containing 'foobar'</jc> |
| * ThrowableAssertion.<jsm>assertThrown</jsm>(() -> <jv>foo</jv>.getBar()) |
| * .findCausedBy(RuntimeException.<jk>class</jk>) |
| * .isExists() |
| * .asMessage() |
| * .isPattern(<js>"foobar"</js>); |
| * </p> |
| * |
| * @param <X> The throwable type. |
| * @param throwableClass The class type to search for in the caused-by chain. |
| * @return An assertion against the caused-by throwable. Never <jk>null</jk>. |
| */ |
| public <X extends Throwable> FluentThrowableAssertion<X,R> asFind(Class<X> throwableClass) { |
| Throwable t = orElse(null); |
| while (t != null) { |
| if (throwableClass.isInstance(t)) |
| return new FluentThrowableAssertion<>(this, throwableClass.cast(t), returns()); |
| t = t.getCause(); |
| } |
| return new FluentThrowableAssertion<>(this, (X)null, returns()); |
| } |
| |
| //----------------------------------------------------------------------------------------------------------------- |
| // Test methods |
| //----------------------------------------------------------------------------------------------------------------- |
| |
| /** |
| * Asserts that this throwable is of the specified type. |
| * |
| * <h5 class='section'>Example:</h5> |
| * <p class='bjava'> |
| * <jc>// Asserts that the specified method throws a RuntimeException. </jc> |
| * ThrowableAssertion.<jsm>assertThrown</jsm>(() -> <jv>foo</jv>.getBar()) |
| * .isType(RuntimeException.<jk>class</jk>); |
| * </p> |
| * |
| * @param parent The type. |
| * @return The fluent return object. |
| */ |
| @Override |
| public R isType(Class<?> parent) { |
| assertArgNotNull("parent", parent); |
| if (! parent.isInstance(value())) |
| throw error(MSG_exceptionWasNotExpectedType, className(parent), className(value())); |
| return returns(); |
| } |
| |
| /** |
| * Asserts that this throwable is exactly the specified type. |
| * |
| * <h5 class='section'>Example:</h5> |
| * <p class='bjava'> |
| * <jc>// Asserts that the specified method throws a RuntimeException. </jc> |
| * ThrowableAssertion.<jsm>assertThrown</jsm>(() -> <jv>foo</jv>.getBar()) |
| * .isExactType(RuntimeException.<jk>class</jk>); |
| * </p> |
| * |
| * @param type The type. |
| * @return The fluent return object. |
| */ |
| @Override |
| public R isExactType(Class<?> type) { |
| assertArgNotNull("type", type); |
| if (type != value().getClass()) |
| throw error(MSG_exceptionWasNotExpectedType, className(type), className(value())); |
| return returns(); |
| } |
| |
| /** |
| * Asserts that this throwable exists. |
| * |
| * <h5 class='section'>Example:</h5> |
| * <p class='bjava'> |
| * <jc>// Asserts that the specified method throws any exception.</jc> |
| * ThrowableAssertion.<jsm>assertThrown</jsm>(() -> <jv>foo</jv>.getBar()).isExists(); |
| * </p> |
| * |
| * @return The fluent return object. |
| */ |
| @Override |
| public R isExists() { |
| if (valueIsNull()) |
| throw error(MSG_exceptionWasNotThrown); |
| return returns(); |
| } |
| |
| //----------------------------------------------------------------------------------------------------------------- |
| // Fluent setters |
| //----------------------------------------------------------------------------------------------------------------- |
| |
| // <FluentSetters> |
| |
| @Override /* GENERATED - org.apache.juneau.assertions.Assertion */ |
| public FluentThrowableAssertion<T,R> setMsg(String msg, Object...args) { |
| super.setMsg(msg, args); |
| return this; |
| } |
| |
| @Override /* GENERATED - org.apache.juneau.assertions.Assertion */ |
| public FluentThrowableAssertion<T,R> setOut(PrintStream value) { |
| super.setOut(value); |
| return this; |
| } |
| |
| @Override /* GENERATED - org.apache.juneau.assertions.Assertion */ |
| public FluentThrowableAssertion<T,R> setSilent() { |
| super.setSilent(); |
| return this; |
| } |
| |
| @Override /* GENERATED - org.apache.juneau.assertions.Assertion */ |
| public FluentThrowableAssertion<T,R> setStdOut() { |
| super.setStdOut(); |
| return this; |
| } |
| |
| @Override /* GENERATED - org.apache.juneau.assertions.Assertion */ |
| public FluentThrowableAssertion<T,R> setThrowable(Class<? extends java.lang.RuntimeException> value) { |
| super.setThrowable(value); |
| return this; |
| } |
| |
| // </FluentSetters> |
| |
| //----------------------------------------------------------------------------------------------------------------- |
| // Utility methods |
| //----------------------------------------------------------------------------------------------------------------- |
| |
| @Override |
| protected boolean equals(Object o1, Object o2) { |
| if (o1 instanceof Throwable && o2 instanceof Throwable) |
| return ObjectUtils.eq((Throwable)o1, (Throwable)o2, (x,y)->ObjectUtils.eq(x.getClass(),y.getClass()) && ObjectUtils.eq(x.getMessage(),y.getMessage())); |
| return super.equals(o1, o2); |
| } |
| } |