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JacocoTestRelocationIntegrationTest.groovy
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JacocoTestRelocationIntegrationTest.groovy
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/*
* Copyright 2016 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.testing.jacoco.plugins
import org.gradle.integtests.fixtures.AbstractTaskRelocationIntegrationTest
import org.gradle.testing.jacoco.plugins.fixtures.JavaProjectUnderTest
import org.gradle.util.Requires
import static org.gradle.util.BinaryDiffUtils.levenshteinDistance
import static org.gradle.util.BinaryDiffUtils.toHexStrings
import static org.gradle.util.TestPrecondition.FIX_TO_WORK_ON_JAVA9
@Requires(FIX_TO_WORK_ON_JAVA9)
class JacocoTestRelocationIntegrationTest extends AbstractTaskRelocationIntegrationTest {
private final JavaProjectUnderTest javaProjectUnderTest = new JavaProjectUnderTest(testDirectory)
@Override
protected String getTaskName() {
return ":test"
}
@Override
protected void setupProjectInOriginalLocation() {
javaProjectUnderTest.writeBuildScript().writeSourceFiles()
}
@Override
protected void moveFilesAround() {
buildFile << """
sourceSets.test.output.classesDir = file("build/test-classes")
"""
file("build/classes/test").assertIsDir().deleteDir()
}
@Override
protected extractResults() {
file("build/jacoco/test.exec").bytes
}
@Override
protected void assertResultsEqual(def originalResult, def movedResult) {
byte[] originalBytes = originalResult
byte[] movedBytes = movedResult
def originalLength = originalBytes.length
def movedLength = movedBytes.length
def lengthDiff = Math.abs(originalLength - movedLength)
def length = Math.min(originalLength, movedLength)
println String.format("Original is %d bytes, moved is %d bytes (%.2f%% difference)", originalLength, movedLength, 100d * lengthDiff / length)
def distance = levenshteinDistance(originalBytes, movedBytes)
println String.format("Levenshtein distance if %s (%.2f%% difference)", distance, 100d * distance / length)
// We are okay with 2% distance
if (distance > length * 0.02) {
// If we had too big a difference we fall back to Groovy reporting it
def originalAsHex = toHexStrings(originalBytes)
def movedAsHex = toHexStrings(movedBytes)
assert movedAsHex == originalAsHex
}
}
}