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// Copyright 2015 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.sandbox;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.fail;
import com.google.common.collect.ImmutableMap;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.io.IOException;
/**
* Tests for {@code MountMap}.
*/
@RunWith(JUnit4.class)
public class MountMapTest extends LinuxSandboxedStrategyTestCase {
@Test
public void testMountMapWithNormalMounts() throws IOException {
// Allowed: Just two normal mounts (a -> sandbox/a, b -> sandbox/b)
MountMap mounts = new MountMap();
mounts.put(fileSystem.getPath("/a"), workspaceDir.getRelative("a"));
mounts.put(fileSystem.getPath("/b"), workspaceDir.getRelative("b"));
assertThat(mounts)
.isEqualTo(
ImmutableMap.of(
fileSystem.getPath("/a"), workspaceDir.getRelative("a"),
fileSystem.getPath("/b"), workspaceDir.getRelative("b")));
}
@Test
public void testMountMapWithSameMountTwice() throws IOException {
// Allowed: Mount same thing twice (a -> sandbox/a, a -> sandbox/a, b -> sandbox/b)
MountMap mounts = new MountMap();
mounts.put(fileSystem.getPath("/a"), workspaceDir.getRelative("a"));
mounts.put(fileSystem.getPath("/a"), workspaceDir.getRelative("a"));
mounts.put(fileSystem.getPath("/b"), workspaceDir.getRelative("b"));
assertThat(mounts)
.isEqualTo(
ImmutableMap.of(
fileSystem.getPath("/a"), workspaceDir.getRelative("a"),
fileSystem.getPath("/b"), workspaceDir.getRelative("b")));
}
@Test
public void testMountMapWithOneThingTwoTargets() throws IOException {
// Allowed: Mount one thing in two targets (x -> sandbox/a, x -> sandbox/b)
MountMap mounts = new MountMap();
mounts.put(fileSystem.getPath("/a"), workspaceDir.getRelative("x"));
mounts.put(fileSystem.getPath("/b"), workspaceDir.getRelative("x"));
assertThat(mounts)
.isEqualTo(
ImmutableMap.of(
fileSystem.getPath("/a"), workspaceDir.getRelative("x"),
fileSystem.getPath("/b"), workspaceDir.getRelative("x")));
}
@Test
public void testMountMapWithTwoThingsOneTarget() throws IOException {
// Forbidden: Mount two things onto the same target (x -> sandbox/a, y -> sandbox/a)
try {
MountMap mounts = new MountMap();
mounts.put(fileSystem.getPath("/x"), workspaceDir.getRelative("a"));
mounts.put(fileSystem.getPath("/x"), workspaceDir.getRelative("b"));
fail();
} catch (IllegalArgumentException e) {
assertThat(e)
.hasMessage(
String.format(
"Cannot mount both '%s' and '%s' onto '%s'",
workspaceDir.getRelative("a"),
workspaceDir.getRelative("b"),
fileSystem.getPath("/x")));
}
}
@Test
public void testMountMapGuaranteesOrdering() {
MountMap mounts = new MountMap();
mounts.put(fileSystem.getPath("/a/c"), workspaceDir.getRelative("x"));
mounts.put(fileSystem.getPath("/b"), workspaceDir.getRelative("x"));
mounts.put(fileSystem.getPath("/a/b"), workspaceDir.getRelative("x"));
mounts.put(fileSystem.getPath("/a"), workspaceDir.getRelative("x"));
assertThat(mounts.entrySet())
.containsExactlyElementsIn(
ImmutableMap.builder()
.put(fileSystem.getPath("/a"), workspaceDir.getRelative("x"))
.put(fileSystem.getPath("/a/b"), workspaceDir.getRelative("x"))
.put(fileSystem.getPath("/a/c"), workspaceDir.getRelative("x"))
.put(fileSystem.getPath("/b"), workspaceDir.getRelative("x"))
.build()
.entrySet())
.inOrder();
}
}
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