Open source CreateIncSymlinkAction.

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MOS_MIGRATED_REVID=117573654

1 files changed, 109 insertions, 0 deletions

diff --git a/src/test/java/com/google/devtools/build/lib/analysis/actions/CreateIncSymlinkActionTest.java b/src/test/java/com/google/devtools/build/lib/analysis/actions/CreateIncSymlinkActionTest.java
new file mode 100644
index 0000000000..2ff8f70372
--- /dev/null
+++ b/src/test/java/com/google/devtools/build/lib/analysis/actions/CreateIncSymlinkActionTest.java
@@ -0,0 +1,109 @@
+// Copyright 2016 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.actions;
+
+import static com.google.common.truth.Truth.assertThat;
+import static com.google.devtools.build.lib.actions.util.ActionsTestUtil.NULL_ACTION_OWNER;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.devtools.build.lib.actions.Artifact;
+import com.google.devtools.build.lib.actions.Root;
+import com.google.devtools.build.lib.testutil.FoundationTestCase;
+import com.google.devtools.build.lib.testutil.Suite;
+import com.google.devtools.build.lib.testutil.TestSpec;
+import com.google.devtools.build.lib.vfs.Path;
+import com.google.devtools.build.lib.vfs.PathFragment;
+import com.google.devtools.build.lib.vfs.Symlinks;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/**
+ * A test for {@link CreateIncSymlinkAction}.
+ */
+@TestSpec(size = Suite.SMALL_TESTS)
+@RunWith(JUnit4.class)
+public class CreateIncSymlinkActionTest extends FoundationTestCase {
+
+  @Test
+  public void testDifferentOrderSameActionKey() throws Exception {
+    Root root = Root.asDerivedRoot(rootDirectory, rootDirectory.getRelative("out"));
+    Artifact a = new Artifact(new PathFragment("a"), root);
+    Artifact b = new Artifact(new PathFragment("b"), root);
+    Artifact c = new Artifact(new PathFragment("c"), root);
+    Artifact d = new Artifact(new PathFragment("d"), root);
+    CreateIncSymlinkAction action1 = new CreateIncSymlinkAction(NULL_ACTION_OWNER,
+        ImmutableMap.of(a, b, c, d));
+    // Can't reuse the artifacts here; that would lead to DuplicateArtifactException.
+    a = new Artifact(new PathFragment("a"), root);
+    b = new Artifact(new PathFragment("b"), root);
+    c = new Artifact(new PathFragment("c"), root);
+    d = new Artifact(new PathFragment("d"), root);
+    CreateIncSymlinkAction action2 = new CreateIncSymlinkAction(NULL_ACTION_OWNER,
+        ImmutableMap.of(c, d, a, b));
+    assertEquals(action1.computeKey(), action2.computeKey());
+  }
+
+  @Test
+  public void testDifferentTargetsDifferentActionKey() throws Exception {
+    Root root = Root.asDerivedRoot(rootDirectory, rootDirectory.getRelative("out"));
+    Artifact a = new Artifact(new PathFragment("a"), root);
+    Artifact b = new Artifact(new PathFragment("b"), root);
+    CreateIncSymlinkAction action1 = new CreateIncSymlinkAction(NULL_ACTION_OWNER,
+        ImmutableMap.of(a, b));
+    // Can't reuse the artifacts here; that would lead to DuplicateArtifactException.
+    a = new Artifact(new PathFragment("a"), root);
+    b = new Artifact(new PathFragment("c"), root);
+    CreateIncSymlinkAction action2 = new CreateIncSymlinkAction(NULL_ACTION_OWNER,
+        ImmutableMap.of(a, b));
+    assertThat(action2.computeKey()).isNotEqualTo(action1.computeKey());
+  }
+
+  @Test
+  public void testDifferentSymlinksDifferentActionKey() throws Exception {
+    Root root = Root.asDerivedRoot(rootDirectory, rootDirectory.getRelative("out"));
+    Artifact a = new Artifact(new PathFragment("a"), root);
+    Artifact b = new Artifact(new PathFragment("b"), root);
+    CreateIncSymlinkAction action1 = new CreateIncSymlinkAction(NULL_ACTION_OWNER,
+        ImmutableMap.of(a, b));
+    // Can't reuse the artifacts here; that would lead to DuplicateArtifactException.
+    a = new Artifact(new PathFragment("c"), root);
+    b = new Artifact(new PathFragment("b"), root);
+    CreateIncSymlinkAction action2 = new CreateIncSymlinkAction(NULL_ACTION_OWNER,
+        ImmutableMap.of(a, b));
+    assertThat(action2.computeKey()).isNotEqualTo(action1.computeKey());
+  }
+
+  @Test
+  public void testExecute() throws Exception {
+    Path outputDir = rootDirectory.getRelative("out");
+    outputDir.createDirectory();
+    Root root = Root.asDerivedRoot(rootDirectory, outputDir);
+    Path symlink = rootDirectory.getRelative("out/a");
+    Artifact a = new Artifact(symlink, root);
+    Artifact b = new Artifact(new PathFragment("b"), root);
+    CreateIncSymlinkAction action = new CreateIncSymlinkAction(NULL_ACTION_OWNER,
+        ImmutableMap.of(a, b));
+    action.execute(null);
+    symlink.stat(Symlinks.NOFOLLOW);
+    assertTrue(symlink.isSymbolicLink());
+    assertEquals(symlink.readSymbolicLink(), b.getPath().asFragment());
+    assertFalse(rootDirectory.getRelative("a").exists());
+  }
+}