| // Copyright 2021 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.collect.nestedset; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Unit tests for {@link NestedSetVisitor}. */ |
| @RunWith(JUnit4.class) |
| public final class NestedSetVisitorTest { |
| |
| @Test |
| public void stableOrder() throws InterruptedException { |
| NestedSet<Integer> set = |
| NestedSetBuilder.<Integer>stableOrder() |
| .addTransitive(NestedSetBuilder.<Integer>stableOrder().add(1).add(2).add(3).build()) |
| .add(4) |
| .add(5) |
| .add(6) |
| .addTransitive(NestedSetBuilder.<Integer>stableOrder().add(7).add(8).add(9).build()) |
| .build(); |
| |
| List<Integer> visited = new ArrayList<>(); |
| new NestedSetVisitor<Integer>(visited::add, new HashSet<>()::add).visit(set); |
| |
| assertThat(visited).isEqualTo(set.toList()); |
| } |
| |
| @Test |
| public void compileOrder() throws InterruptedException { |
| NestedSet<Integer> set = |
| NestedSetBuilder.<Integer>compileOrder() |
| .addTransitive(NestedSetBuilder.<Integer>compileOrder().add(1).add(2).add(3).build()) |
| .add(4) |
| .add(5) |
| .add(6) |
| .addTransitive(NestedSetBuilder.<Integer>compileOrder().add(7).add(8).add(9).build()) |
| .build(); |
| |
| List<Integer> visited = new ArrayList<>(); |
| new NestedSetVisitor<Integer>(visited::add, new HashSet<>()::add).visit(set); |
| |
| assertThat(visited).isEqualTo(set.toList()); |
| } |
| |
| @Test |
| public void linkOrder() throws InterruptedException { |
| NestedSet<Integer> set = |
| NestedSetBuilder.<Integer>linkOrder() |
| .addTransitive(NestedSetBuilder.<Integer>linkOrder().add(1).add(2).add(3).build()) |
| .add(4) |
| .add(5) |
| .add(6) |
| .addTransitive(NestedSetBuilder.<Integer>linkOrder().add(7).add(8).add(9).build()) |
| .build(); |
| |
| List<Integer> visited = new ArrayList<>(); |
| new NestedSetVisitor<Integer>(visited::add, new HashSet<>()::add).visit(set); |
| |
| // #toList() for LINK_ORDER reverses the result list. |
| assertThat(visited).isEqualTo(set.toList().reverse()); |
| } |
| |
| @Test |
| public void naiveLinkOrder() throws InterruptedException { |
| NestedSet<Integer> set = |
| NestedSetBuilder.<Integer>naiveLinkOrder() |
| .addTransitive(NestedSetBuilder.<Integer>naiveLinkOrder().add(1).add(2).add(3).build()) |
| .add(4) |
| .add(5) |
| .add(6) |
| .addTransitive(NestedSetBuilder.<Integer>naiveLinkOrder().add(7).add(8).add(9).build()) |
| .build(); |
| |
| List<Integer> visited = new ArrayList<>(); |
| new NestedSetVisitor<Integer>(visited::add, new HashSet<>()::add).visit(set); |
| |
| assertThat(visited).isEqualTo(set.toList()); |
| } |
| |
| @Test |
| public void mixedOrders() throws InterruptedException { |
| NestedSet<Integer> set = |
| NestedSetBuilder.<Integer>stableOrder() |
| .addTransitive( |
| NestedSetBuilder.<Integer>linkOrder() |
| .add(1) |
| .addTransitive(NestedSetBuilder.<Integer>linkOrder().add(2).add(3).build()) |
| .addTransitive(NestedSetBuilder.<Integer>linkOrder().add(4).add(5).build()) |
| .build()) |
| .add(6) |
| .add(7) |
| .add(8) |
| .addTransitive( |
| NestedSetBuilder.<Integer>naiveLinkOrder() |
| .addTransitive(NestedSetBuilder.<Integer>naiveLinkOrder().add(7).add(8).build()) |
| .addTransitive( |
| NestedSetBuilder.<Integer>naiveLinkOrder().add(9).add(10).build()) |
| .add(11) |
| .build()) |
| .build(); |
| |
| List<Integer> visited = new ArrayList<>(); |
| new NestedSetVisitor<Integer>(visited::add, new HashSet<>()::add).visit(set); |
| |
| assertThat(visited).isEqualTo(set.toList()); |
| } |
| |
| @Test |
| public void duplicatesSkipped() throws InterruptedException { |
| NestedSet<Integer> subset = |
| NestedSetBuilder.<Integer>compileOrder().add(1).add(2).add(3).build(); |
| NestedSet<Integer> set = |
| NestedSetBuilder.<Integer>compileOrder() |
| .addTransitive(subset) |
| .addTransitive( |
| NestedSetBuilder.<Integer>compileOrder().add(4).addTransitive(subset).build()) |
| .add(5) |
| .add(6) |
| .add(7) |
| .addTransitive( |
| NestedSetBuilder.<Integer>compileOrder() |
| .add(8) |
| .add(9) |
| .addTransitive(subset) |
| .build()) |
| .build(); |
| |
| List<Integer> visited = new ArrayList<>(); |
| new NestedSetVisitor<Integer>(visited::add, new HashSet<>()::add).visit(set); |
| |
| assertThat(visited).isEqualTo(set.toList()); |
| assertThat(visited).hasSize(9); |
| } |
| } |