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Truth first checkin
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‎.classpath‎

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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" path="src/main/java"/>
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<classpathentry kind="src" path="src/test/java"/>
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<classpathentry kind="lib" path="truth0.1/truth-0.1-tests.jar"/>
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<classpathentry kind="lib" path="truth0.1/truth-0.1.jar"/>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
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<classpathentry combineaccessrules="false" kind="src" path="/junit"/>
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<classpathentry kind="output" path="bin"/>
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</classpath>

‎.gitignore‎

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bin
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target
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truth*

‎.project‎

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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>truth</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.eclipse.jdt.core.javanature</nature>
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</natures>
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</projectDescription>

‎build.xml‎

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<project>
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<property name="target" location="target" />
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<property name="version-base" value="0.1" />
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<property name="version-status" value="" />
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<property name="version" value="${version-base}${version-status}" />
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<property name="dist" value="truth${version}" />
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<property name="src" value="src/main/java" />
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<property name="binjar" value="truth-${version}.jar" />
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<property name="testjar" value="truth-${version}-tests.jar" />
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<property name="testsrc" location="src/test/java" />
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<property name="testbin" location="${target}/test/java" />
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<property name="bin" location="${target}/main" />
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<macrodef name="truth_compilation">
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<attribute name="srcdir"/>
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<attribute name="destdir"/>
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<attribute name="classpath"/>
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<sequential>
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<mkdir dir="@{destdir}"/>
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<javac
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srcdir="@{srcdir}"
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destdir="@{destdir}"
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debug="on"
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classpath="@{classpath}"
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includeantruntime="false"
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target="1.5"
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>
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<compilerarg value="-Xlint:unchecked" />
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<classpath>
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<pathelement location="../junit/junit4.9b2/junit-4.9b2.jar" />
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</classpath>
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</javac>
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</sequential>
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</macrodef>
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<macrodef name="run-tests">
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<element name="extra-args" implicit="yes" />
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<sequential>
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<java classname="org.junit.runner.JUnitCore" fork="yes" failonerror="true">
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<extra-args />
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<arg value="test.org.junit.contrib.truth.AllTests"/>
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<classpath>
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<pathelement location="${dist}" />
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<pathelement location="${dist}/${binjar}" />
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<pathelement location="${dist}/${testjar}" />
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<!-- TODO: don't hard-code JUnit version -->
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<pathelement location="../junit/junit4.9b2/junit-4.9b2.jar" />
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</classpath>
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</java>
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</sequential>
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</macrodef>
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<target name="build">
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<truth_compilation srcdir="${src}" destdir="${bin}" classpath=""/>
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<truth_compilation srcdir="${testsrc}" destdir="${testbin}" classpath="${bin}"/>
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</target>
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<target name="jars" depends="build">
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<mkdir dir="${dist}" />
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<jar
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jarfile="${dist}/${binjar}"
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basedir="${bin}"
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/>
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<jar
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jarfile="${dist}/${testjar}"
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basedir="${testbin}"
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/>
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</target>
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<target name="populate-dist"
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depends="build, jars"
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>
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</target>
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<target name="dist" depends="populate-dist">
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<run-tests>
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<jvmarg value="-Dignore.this=ignored" />
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</run-tests>
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</target>
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</project>
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<!-- TODO: cheating -->

‎src/main/java/org/junit/contrib/truth/Expect.java‎

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package org.junit.contrib.truth;
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import java.util.ArrayList;
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import java.util.List;
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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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public class Expect extends TestVerb implements TestRule {
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private static class ExpectationGatherer implements FailureStrategy {
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List<String> messages = new ArrayList<String>();
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@Override
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public void fail(String message) {
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messages.add(message);
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}
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}
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private final ExpectationGatherer gatherer;
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private boolean inRuleContext = false;
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public static Expect create() {
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return new Expect(new ExpectationGatherer());
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}
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private Expect(ExpectationGatherer gatherer) {
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super(gatherer);
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this.gatherer = gatherer;
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}
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@Override
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public Statement apply(final Statement base, Description description) {
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inRuleContext = true;
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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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base.evaluate();
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if (! gatherer.messages.isEmpty()) {
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String message = "All failed expectations:\n";
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for (int i = 0; i < gatherer.messages.size(); i++) {
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message += " " + (i+1) + ". " + gatherer.messages.get(i) + "\n";
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}
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throw new AssertionError(message);
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}
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}
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};
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}
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}

‎src/main/java/org/junit/contrib/truth/FailureStrategy.java‎

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package org.junit.contrib.truth;
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public interface FailureStrategy {
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void fail(String message);
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}

‎src/main/java/org/junit/contrib/truth/IntSubject.java‎

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package org.junit.contrib.truth;
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public class IntSubject extends Subject<Integer> {
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public IntSubject(FailureStrategy failureStrategy, int i) {
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super(failureStrategy, i);
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}
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}

‎src/main/java/org/junit/contrib/truth/StringSubject.java‎

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package org.junit.contrib.truth;
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public class StringSubject extends Subject<String> {
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public StringSubject(FailureStrategy failureStrategy, String string) {
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super(failureStrategy, string);
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}
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public StringSubject contains(String string) {
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if (!getSubject().contains(string)) {
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fail("contains", string);
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}
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return this;
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}
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}

‎src/main/java/org/junit/contrib/truth/Subject.java‎

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package org.junit.contrib.truth;
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public class Subject<T> {
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private final FailureStrategy failureStrategy;
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private final T subject;
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public Subject(FailureStrategy failureStrategy, T subject) {
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this.failureStrategy = failureStrategy;
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this.subject = subject;
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}
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public Subject<T> is(Object other) {
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if (!getSubject().equals(other)) {
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fail("is", other);
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}
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return this;
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}
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protected T getSubject() {
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return subject;
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}
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protected void fail(String verb, Object... messageParts) {
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String message = "Not true: ";
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message += "<" + getSubject() + "> " + verb;
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for (Object part : messageParts) {
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message += " <" + part + ">";
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}
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failureStrategy.fail(message);
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}
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}

‎src/main/java/org/junit/contrib/truth/TestVerb.java‎

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package org.junit.contrib.truth;
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public class TestVerb {
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private final FailureStrategy failureStrategy;
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public TestVerb(FailureStrategy failureStrategy) {
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this.failureStrategy = failureStrategy;
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}
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public IntSubject that(int i) {
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return new IntSubject(getFailureStrategy(), i);
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}
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public StringSubject that(String string) {
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return new StringSubject(getFailureStrategy(), string);
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}
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protected FailureStrategy getFailureStrategy() {
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return failureStrategy;
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}
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}

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