Revert "Fixes build breakage because we cannot target 1.8 without running at least JDK 8"
Revert "Fixes build breakage because we cannot target 1.8 without running at least JDK 8"

This reverts commit 33bfd2a522ff9a57d5f875b5ea02f8072d2b99f3.

/*
 * Copyright 2014 the original author or authors.
 *
 * Licensed 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.gradle.java

import org.gradle.api.JavaVersion
import org.gradle.integtests.fixtures.AvailableJavaHomes
import org.gradle.integtests.fixtures.MultiVersionIntegrationSpec
import org.gradle.integtests.fixtures.TargetVersions
import org.gradle.internal.jvm.JavaInfo
import org.gradle.util.TextUtil
import org.junit.Assume

@TargetVersions(["1.5", "1.6", "1.7", "1.8"])
class JavaCrossCompilationIntegrationTest extends MultiVersionIntegrationSpec {
    def JavaInfo getTarget() {
        return AvailableJavaHomes.getJdk(JavaVersion.toVersion(version))
    }

    def setup() {
        Assume.assumeTrue(target != null)
        def java = TextUtil.escapeString(target.getJavaExecutable())
        def javac = TextUtil.escapeString(target.getExecutable("javac"))
        def javadoc = TextUtil.escapeString(target.getExecutable("javadoc"))

        buildFile << """
apply plugin: 'java'
sourceCompatibility = ${version}
targetCompatibility = ${version}
repositories { mavenCentral() }
tasks.withType(JavaCompile) {
    options.with {
        fork = true
        forkOptions.executable = "$javac"
    }
}
tasks.withType(Javadoc) {
    executable = "$javadoc"
}
tasks.withType(Test) {
    executable = "$java"
}
"""

        file("src/main/java/Thing.java") << """
/** Some thing. */
public class Thing { }
"""
    }

    def "can compile source and run JUnit tests using target Java version"() {
        given:
        buildFile << """
dependencies { testCompile 'junit:junit:4.11' }
"""

        file("src/test/java/ThingTest.java") << """
import org.junit.Test;
import static org.junit.Assert.*;

public class ThingTest {
    @Test
    public void verify() {
        assertTrue(System.getProperty("java.version").startsWith("${version}."));
    }
}
"""

        expect:
        succeeds 'test'
    }

    def "can compile source and run TestNG tests using target Java version"() {
        given:
        buildFile << """
dependencies { testCompile 'org.testng:testng:6.8.8' }
"""

        file("src/test/java/ThingTest.java") << """
import org.testng.annotations.Test;

public class ThingTest {
    @Test
    public void verify() {
        assert System.getProperty("java.version").startsWith("${version}.");
    }
}
"""

        expect:
        succeeds 'test'
    }

    def "can generate Javadocs using target Java version"() {
        expect:
        succeeds 'javadoc'
        file('build/docs/javadoc/Thing.html').text.matches("(?s).*Generated by javadoc \\(.*?\\Q${version}.\\E.*")
    }
}

/*
 * Copyright 2014 the original author or authors.
 *
 * Licensed 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.gradle.java

import org.gradle.api.JavaVersion
import org.gradle.integtests.fixtures.AvailableJavaHomes
import org.gradle.integtests.fixtures.MultiVersionIntegrationSpec
import org.gradle.integtests.fixtures.TargetVersions
import org.gradle.internal.jvm.JavaInfo
import org.gradle.util.Requires
import org.gradle.util.TestPrecondition
import org.gradle.util.TextUtil
import org.junit.Assume

@TargetVersions(["1.5", "1.6", "1.7", "1.8"])
@Requires(TestPrecondition.JDK8_OR_LATER)
class JavaCrossCompilationIntegrationTest extends MultiVersionIntegrationSpec {
    def JavaInfo getTarget() {
        return AvailableJavaHomes.getJdk(JavaVersion.toVersion(version))
    }

    def setup() {
        Assume.assumeTrue(target != null)
        def java = TextUtil.escapeString(target.getJavaExecutable())
        def javac = TextUtil.escapeString(target.getExecutable("javac"))
        def javadoc = TextUtil.escapeString(target.getExecutable("javadoc"))

        buildFile << """
apply plugin: 'java'
sourceCompatibility = ${version}
targetCompatibility = ${version}
repositories { mavenCentral() }
tasks.withType(JavaCompile) {
    options.with {
        fork = true
        forkOptions.executable = "$javac"
    }
}
tasks.withType(Javadoc) {
    executable = "$javadoc"
}
tasks.withType(Test) {
    executable = "$java"
}
"""

        file("src/main/java/Thing.java") << """
/** Some thing. */
public class Thing { }
"""
    }

    def "can compile source and run JUnit tests using target Java version"() {
        given:
        buildFile << """
dependencies { testCompile 'junit:junit:4.11' }
"""

        file("src/test/java/ThingTest.java") << """
import org.junit.Test;
import static org.junit.Assert.*;

public class ThingTest {
    @Test
    public void verify() {
        assertTrue(System.getProperty("java.version").startsWith("${version}."));
    }
}
"""

        expect:
        succeeds 'test'
    }

    def "can compile source and run TestNG tests using target Java version"() {
        given:
        buildFile << """
dependencies { testCompile 'org.testng:testng:6.8.8' }
"""

        file("src/test/java/ThingTest.java") << """
import org.testng.annotations.Test;

public class ThingTest {
    @Test
    public void verify() {
        assert System.getProperty("java.version").startsWith("${version}.");
    }
}
"""

        expect:
        succeeds 'test'
    }

    def "can generate Javadocs using target Java version"() {
        expect:
        succeeds 'javadoc'
        file('build/docs/javadoc/Thing.html').text.matches("(?s).*Generated by javadoc \\(.*?\\Q${version}.\\E.*")
    }
}
