Merge pull request #31 from kemitix/thenthrow-otherwisethrow
Add thenThrow and otherwiseThrow
This commit is contained in:
commit
d56d864ef2
8 changed files with 134 additions and 4 deletions
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@ -1,6 +1,12 @@
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CHANGELOG
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=========
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0.5.0
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-----
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* Add `thenThrow(Exception)`
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* Add `otherwiseThrow(Exception)`
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0.4.0
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-----
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1
pom.xml
1
pom.xml
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@ -59,7 +59,6 @@
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<configuration>
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<tiles>
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<tile>net.kemitix.tiles:all:${kemitix-tiles.version}</tile>
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<tile>net.kemitix.tiles:pmd-strict:${kemitix-tiles.version}</tile>
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<tile>net.kemitix.checkstyle:tile:${kemitix-checkstyle.version}</tile>
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</tiles>
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</configuration>
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@ -28,6 +28,7 @@ import java.util.function.Supplier;
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*
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* @author Paul Campbell (pcampbell@kemitix.net).
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*/
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@SuppressWarnings({"methodcount", "PMD.TooManyMethods"})
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public interface Condition {
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/**
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@ -123,4 +124,21 @@ public interface Condition {
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return where(clause.get());
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}
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/**
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* Throw then exception if the {@code Condition} is {@code true}.
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*
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* @param exception the Exception to throw
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* @throws Exception the exception
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*/
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@SuppressWarnings(SuppressHelper.CS_ILLEGALTHROWS)
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void thenThrow(Exception exception) throws Exception;
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/**
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* Throw then exception if the {@code Condition} is {@code false}.
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*
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* @param exception the Exception to throw
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* @throws Exception the exception
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*/
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@SuppressWarnings(SuppressHelper.CS_ILLEGALTHROWS)
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void otherwiseThrow(Exception exception) throws Exception;
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}
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@ -53,4 +53,13 @@ final class FalseCondition implements Condition {
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response.perform();
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}
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@Override
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public void thenThrow(final Exception exception) {
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// do nothing
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}
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@Override
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public void otherwiseThrow(final Exception exception) throws Exception {
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throw exception;
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}
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}
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38
src/main/java/net/kemitix/conditional/SuppressHelper.java
Normal file
38
src/main/java/net/kemitix/conditional/SuppressHelper.java
Normal file
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@ -0,0 +1,38 @@
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/**
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Paul Campbell
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
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* and associated documentation files (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies
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* or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
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* AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package net.kemitix.conditional;
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/**
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* Holder for strings for suppressing Checkstyle and PMD warnings.
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*
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* @author Paul Campbell (pcampbell@kemitix.net).
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*/
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final class SuppressHelper {
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public static final String CS_ILLEGALTHROWS = "illegalthrows";
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/**
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* Restricted constructor.
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*/
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protected SuppressHelper() {
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throw new UnsupportedOperationException();
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}
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}
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@ -54,4 +54,14 @@ final class TrueCondition implements Condition {
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// do nothing
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}
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@Override
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public void thenThrow(final Exception exception) throws Exception {
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throw exception;
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}
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@Override
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public void otherwiseThrow(final Exception exception) throws Exception {
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// do nothing
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}
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}
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@ -1,16 +1,16 @@
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package net.kemitix.conditional;
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import org.assertj.core.api.WithAssertions;
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import org.junit.Before;
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import org.junit.Test;
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import java.io.IOException;
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import java.util.concurrent.atomic.AtomicInteger;
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import static org.assertj.core.api.Assertions.assertThat;
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/**
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* @author Paul Campbell (pcampbell@kemitix.net).
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*/
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public class ConditionalTest {
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public class ConditionalTest implements WithAssertions {
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private Action thenResponse;
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@ -311,4 +311,36 @@ public class ConditionalTest {
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assertThatTheThenResponseDidNotRun();
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assertThat(atomicInteger).hasValue(0);
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}
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@Test
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public void whereTrueThenThrowException() {
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//given
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assertThatExceptionOfType(IOException.class)
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.isThrownBy(() -> Condition.where(true)
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.thenThrow(new IOException()));
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}
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@Test
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public void whereFalseThenDoNotThrowException() throws Exception {
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assertThatCode(() ->
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Condition.where(false)
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.thenThrow(new IOException()))
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.doesNotThrowAnyException();
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}
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@Test
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public void whereFalseOtherwiseThenThrowException() {
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//given
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assertThatExceptionOfType(IOException.class)
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.isThrownBy(() -> Condition.where(false)
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.otherwiseThrow(new IOException()));
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}
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@Test
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public void whereTrueOtherwiseThenDoNotThrowException() throws Exception {
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assertThatCode(() ->
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Condition.where(true)
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.otherwiseThrow(new IOException()))
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.doesNotThrowAnyException();
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}
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}
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@ -0,0 +1,18 @@
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package net.kemitix.conditional;
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import org.assertj.core.api.WithAssertions;
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import org.junit.Test;
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import java.lang.reflect.Constructor;
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public class SuppressHelperTest implements WithAssertions {
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@Test
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public void utilityClassCannotBeInstantiate() throws NoSuchMethodException {
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final Constructor<SuppressHelper> constructor = SuppressHelper.class.getDeclaredConstructor();
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constructor.setAccessible(true);
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assertThatExceptionOfType(UnsupportedOperationException.class)
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.isThrownBy(() -> new SuppressHelper());
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}
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}
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