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/*
* Copyright (C) 2023 The Android Open Source Project
*
* 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 com.android.build.api.metalava
import com.android.testutils.TestUtils
import com.google.common.io.Resources
import org.junit.Test
import java.lang.AssertionError
import java.nio.charset.StandardCharsets
import java.nio.file.Files
import java.nio.file.Path
import java.nio.file.Paths
/**
* Test that tries to ensure that our public API remains stable.
*/
class StableApiTest {
@Test
fun checkCurrentApi() {
@Suppress("UnstableApiUsage")
val expected: List<String> = Resources.asCharSource(EXPECTED_FILE, StandardCharsets.UTF_8).readLines()
val actual = Files.readAllLines(CURRENT, StandardCharsets.UTF_8)
if (expected != actual) {
throw AssertionError(
"""
The Android Gradle Plugin API does not match the expectation file.
Either:
* revert the api change
* or apply the below changes by running the updateApi task:
gradle :base:build-system:gradle-settings-api:updateMetalavaApi
To update all the API expectation files, run
gradlew updateApi
""".trimIndent() +
TestUtils.getDiff(expected.toTypedArray(), actual.toTypedArray())
)
}
}
companion object {
@Suppress("UnstableApiUsage")
private val EXPECTED_FILE = Resources.getResource("current.txt")
val CURRENT: Path = Paths.get(System.getProperty("metalavaCurrentApiFile")!!).resolve("current.txt")
}
}
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