// 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.skyframe;

import static com.google.common.truth.Truth.assertThat;
import static com.google.devtools.build.lib.analysis.testing.ToolchainContextSubject.assertThat;

import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.platform.ToolchainInfo;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.rules.platform.ToolchainTestCase;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for toolchains computed in BuildViewTestCase. */
@RunWith(JUnit4.class)
public class RuleContextTest extends ToolchainTestCase {

  @Test
  public void testToolchains() throws Exception {
    mockToolsConfig.create("x/BUILD", "mock_toolchain_rule(name='x')");
    useConfiguration("--host_platform=//platforms:linux", "--platforms=//platforms:mac");
    RuleContext ruleContext = getRuleContext(getConfiguredTarget("//x"));
    assertThat(ruleContext.getToolchainContext().resolvedToolchainLabels())
        .contains(Label.parseAbsolute("//toolchain:toolchain_1_impl", ImmutableMap.of()));

    assertThat(ruleContext.getToolchainContext()).hasToolchainType("//toolchain:test_toolchain");
    ToolchainInfo toolchain =
        ruleContext
            .getToolchainContext()
            .forToolchainType(Label.parseAbsolute("//toolchain:test_toolchain", ImmutableMap.of()));
    assertThat(toolchain.getValue("data")).isEqualTo("foo");
  }

  @Test
  public void testTargetPlatformHasConstraint_mac() throws Exception {
    scratch.file("a/BUILD", "filegroup(name = 'a')");
    useConfiguration("--platforms=//platforms:mac");
    RuleContext ruleContext = getRuleContext(getConfiguredTarget("//a"));
    assertThat(ruleContext.targetPlatformHasConstraint(macConstraint)).isTrue();
    assertThat(ruleContext.targetPlatformHasConstraint(linuxConstraint)).isFalse();
  }

  @Test
  public void testTargetPlatformHasConstraint_linux() throws Exception {
    scratch.file("a/BUILD", "filegroup(name = 'a')");
    useConfiguration("--platforms=//platforms:linux");
    RuleContext ruleContext = getRuleContext(getConfiguredTarget("//a"));
    assertThat(ruleContext.targetPlatformHasConstraint(macConstraint)).isFalse();
    assertThat(ruleContext.targetPlatformHasConstraint(linuxConstraint)).isTrue();
  }
}