// Copyright 2017 The Bazel Authors. All rights reserved.
//
// 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.google.devtools.build.lib.analysis.whitelisting;

import com.google.devtools.build.lib.analysis.ConfiguredRuleClassProvider;
import com.google.devtools.build.lib.analysis.util.BuildViewTestCase;
import com.google.devtools.build.lib.testutil.TestRuleClassProvider;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for the Whitelist methods. */
@RunWith(JUnit4.class)
public final class WhitelistTest extends BuildViewTestCase {

  @Override
  protected ConfiguredRuleClassProvider getRuleClassProvider() {
    ConfiguredRuleClassProvider.Builder builder = new ConfiguredRuleClassProvider.Builder();
    TestRuleClassProvider.addStandardRules(builder);
    return builder.addRuleDefinition(WhitelistDummyRule.DEFINITION).build();
  }

  @Test
  public void testDirectPackage() throws Exception {
    scratch.file(
        "whitelist/BUILD",
        "package_group(",
        "    name='whitelist',",
        "    packages=[",
        "        '//direct',",
        "    ])");
    scratch.file("direct/BUILD", "rule_with_whitelist(name='x')");
    getConfiguredTarget("//direct:x");
    assertNoEvents();
  }

  @Test
  public void testRecursivePackage() throws Exception {
    scratch.file(
        "whitelist/BUILD",
        "package_group(",
        "    name='whitelist',",
        "    packages=[",
        "        '//recursive/...',",
        "    ])");
    scratch.file("recursive/x/BUILD", "rule_with_whitelist(name='y')");
    getConfiguredTarget("//recursive/x:y");
    assertNoEvents();
  }

  @Test
  public void testAbsentPackage() throws Exception {
    scratch.file(
        "whitelist/BUILD",
        "package_group(",
        "    name='whitelist',",
        "    packages=[",
        "        '//somethingelse/...',",
        "    ])");
    checkError("absent", "x", "Dummy is not available.", "rule_with_whitelist(name='x')");
  }

  @Test
  public void testCatchAll() throws Exception {
    scratch.file(
        "whitelist/BUILD",
        "package_group(",
        "    name='whitelist',",
        "    packages=[",
        "        '//...',",
        "    ])");
    scratch.file("notingroup/BUILD", "rule_with_whitelist(name='x')");
    getConfiguredTarget("//notingroup:x");
    assertNoEvents();
  }

  @Test
  public void testEmptyPackageGroup() throws Exception {
    scratch.file("whitelist/BUILD", "package_group(name='whitelist', packages=[])");
    checkError("x", "x", "Dummy is not available.", "rule_with_whitelist(name='x')");
  }

  @Test
  public void testNonExistentPackageGroup() throws Exception {
    checkError(
        "x",
        "x",
        "every rule of type rule_with_whitelist implicitly depends upon the target"
            + " '//whitelist:whitelist', but this target could not be found because of: no such"
            + " package 'whitelist': BUILD file not found on package path",
        "rule_with_whitelist(name='x')");
  }

  @Test
  public void testIncludes() throws Exception {
    scratch.file(
        "subwhitelist/BUILD",
        "package_group(",
        "    name='whitelist',",
        "    packages=[",
        "        '//x',",
        "    ])");
    scratch.file(
        "whitelist/BUILD",
        "package_group(",
        "    name='whitelist',",
        "    includes=[",
        "        '//subwhitelist:whitelist',",
        "    ],",
        "    packages=[",
        "    ])");
    scratch.file("x/BUILD", "rule_with_whitelist(", "name='x'", ")");
    getConfiguredTarget("//x:x");
    assertNoEvents();
  }
}