1 files changed, 88 insertions, 0 deletions
diff --git a/src/test/java/com/google/devtools/build/lib/skyframe/PackageErrorMessageFunctionTest.java b/src/test/java/com/google/devtools/build/lib/skyframe/PackageErrorMessageFunctionTest.java
new file mode 100644
index 0000000000..411381de5f
--- /dev/null
+++ b/src/test/java/com/google/devtools/build/lib/skyframe/PackageErrorMessageFunctionTest.java
@@ -0,0 +1,88 @@
+// Copyright 2018 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 com.google.common.collect.ImmutableList;
+import com.google.devtools.build.lib.analysis.util.BuildViewTestCase;
+import com.google.devtools.build.lib.cmdline.PackageIdentifier;
+import com.google.devtools.build.lib.skyframe.PackageErrorMessageValue.Result;
+import com.google.devtools.build.skyframe.EvaluationResult;
+import com.google.devtools.build.skyframe.SkyKey;
+import com.google.devtools.build.skyframe.SkyValue;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** Tests for {@link PackageErrorMessageFunction}. */
+@RunWith(JUnit4.class)
+public class PackageErrorMessageFunctionTest extends BuildViewTestCase {
+
+  private SkyframeExecutor skyframeExecutor;
+
+  @Before
+  public final void createSkyframeExecutor() {
+    skyframeExecutor = getSkyframeExecutor();
+  }
+
+  @Test
+  public void testNoErrorMessage() throws Exception {
+    scratch.file("a/BUILD");
+    assertThat(getPackageErrorMessageValue(/*keepGoing=*/ false).getResult())
+        .isEqualTo(Result.NO_ERROR);
+  }
+
+  @Test
+  public void testPackageWithErrors() throws Exception {
+    // Opt out of failing fast on an error event.
+    reporter.removeHandler(failFastHandler);
+
+    scratch.file("a/BUILD", "imaginary_macro(name = 'this macro is not defined')");
+
+    assertThat(getPackageErrorMessageValue(/*keepGoing=*/ false).getResult())
+        .isEqualTo(Result.ERROR);
+  }
+
+  @Test
+  public void testNoSuchPackageException() throws Exception {
+    scratch.file("a/BUILD", "load('//a:does_not_exist.bzl', 'imaginary_macro')");
+
+    PackageErrorMessageValue packageErrorMessageValue =
+        getPackageErrorMessageValue(/*keepGoing=*/ true);
+    assertThat(packageErrorMessageValue.getResult()).isEqualTo(Result.NO_SUCH_PACKAGE_EXCEPTION);
+    assertThat(packageErrorMessageValue.getNoSuchPackageExceptionMessage())
+        .isEqualTo(
+            "error loading package 'a': Extension file not found. Unable to load file "
+                + "'//a:does_not_exist.bzl': file doesn't exist or isn't a file");
+  }
+
+  private PackageErrorMessageValue getPackageErrorMessageValue(boolean keepGoing)
+      throws InterruptedException {
+    SkyKey key = PackageErrorMessageValue.key(PackageIdentifier.createInMainRepo("a"));
+    EvaluationResult<SkyValue> result =
+        skyframeExecutor
+            .getDriverForTesting()
+            .evaluate(
+                ImmutableList.of(key),
+                /*keepGoing=*/ keepGoing,
+                SequencedSkyframeExecutor.DEFAULT_THREAD_COUNT,
+                reporter);
+    assertThat(result.hasError()).isFalse();
+    SkyValue value = result.get(key);
+    assertThat(value).isInstanceOf(PackageErrorMessageValue.class);
+    return (PackageErrorMessageValue) value;
+  }
+}