| /* |
| * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package jdk.internal.net.http.hpack; |
| |
| import org.testng.annotations.Test; |
| |
| import java.util.Objects; |
| import java.util.Random; |
| |
| public final class TestHelper { |
| |
| public static Random newRandom() { |
| long seed = Long.getLong("jdk.test.lib.random.seed", System.currentTimeMillis()); |
| System.out.println("new java.util.Random(" + seed + ")"); |
| return new Random(seed); |
| } |
| |
| public static <T extends Throwable> T assertVoidThrows(Class<T> clazz, Block<?> code) { |
| return assertThrows(clazz, () -> { |
| code.run(); |
| return null; |
| }); |
| } |
| |
| public static <T extends Throwable> T assertThrows(Class<T> clazz, ReturningBlock<?> code) { |
| Objects.requireNonNull(clazz, "clazz == null"); |
| Objects.requireNonNull(code, "code == null"); |
| try { |
| code.run(); |
| } catch (Throwable t) { |
| if (clazz.isInstance(t)) { |
| return clazz.cast(t); |
| } |
| throw new AssertionError("Expected to catch exception of type " |
| + clazz.getCanonicalName() + ", instead caught " |
| + t.getClass().getCanonicalName(), t); |
| |
| } |
| throw new AssertionError( |
| "Expected to catch exception of type " + clazz.getCanonicalName() |
| + ", but caught nothing"); |
| } |
| |
| public static <T> T assertDoesNotThrow(ReturningBlock<T> code) { |
| Objects.requireNonNull(code, "code == null"); |
| try { |
| return code.run(); |
| } catch (Throwable t) { |
| throw new AssertionError( |
| "Expected code block to exit normally, instead " + |
| "caught " + t.getClass().getCanonicalName(), t); |
| } |
| } |
| |
| public static void assertVoidDoesNotThrow(Block<?> code) { |
| Objects.requireNonNull(code, "code == null"); |
| try { |
| code.run(); |
| } catch (Throwable t) { |
| throw new AssertionError( |
| "Expected code block to exit normally, instead " + |
| "caught " + t.getClass().getCanonicalName(), t); |
| } |
| } |
| |
| |
| public static void assertExceptionMessageContains(Throwable t, |
| CharSequence firstSubsequence, |
| CharSequence... others) { |
| assertCharSequenceContains(t.getMessage(), firstSubsequence, others); |
| } |
| |
| public static void assertCharSequenceContains(CharSequence s, |
| CharSequence firstSubsequence, |
| CharSequence... others) { |
| if (s == null) { |
| throw new NullPointerException("Exception message is null"); |
| } |
| String str = s.toString(); |
| String missing = null; |
| if (!str.contains(firstSubsequence.toString())) { |
| missing = firstSubsequence.toString(); |
| } else { |
| for (CharSequence o : others) { |
| if (!str.contains(o.toString())) { |
| missing = o.toString(); |
| break; |
| } |
| } |
| } |
| if (missing != null) { |
| throw new AssertionError("CharSequence '" + s + "'" + " does not " |
| + "contain subsequence '" + missing + "'"); |
| } |
| } |
| |
| public interface ReturningBlock<T> { |
| T run() throws Throwable; |
| } |
| |
| public interface Block<T> { |
| void run() throws Throwable; |
| } |
| |
| // tests |
| |
| @Test |
| public void assertThrows() { |
| assertThrows(NullPointerException.class, () -> ((Object) null).toString()); |
| } |
| |
| @Test |
| public void assertThrowsWrongType() { |
| try { |
| assertThrows(IllegalArgumentException.class, () -> ((Object) null).toString()); |
| } catch (AssertionError e) { |
| Throwable cause = e.getCause(); |
| String message = e.getMessage(); |
| if (cause != null |
| && cause instanceof NullPointerException |
| && message != null |
| && message.contains("instead caught")) { |
| return; |
| } |
| } |
| throw new AssertionError(); |
| } |
| |
| @Test |
| public void assertThrowsNoneCaught() { |
| try { |
| assertThrows(IllegalArgumentException.class, () -> null); |
| } catch (AssertionError e) { |
| Throwable cause = e.getCause(); |
| String message = e.getMessage(); |
| if (cause == null |
| && message != null |
| && message.contains("but caught nothing")) { |
| return; |
| } |
| } |
| throw new AssertionError(); |
| } |
| } |