From 28adce590d95cb9aa826fcd9f939efbb8e1eab7e Mon Sep 17 00:00:00 2001
From: janakr <janakr@google.com>
Date: Thu, 13 Jul 2017 19:55:32 +0200
Subject: If globbing throws an IOException, fail to construct the package
 instead of constructing the package with an error.

Prior to this change, if a Package.Builder object was constructed, it was guaranteed that a Package (possibly with errors) would be created. This is no longer true: if an IOException is set on the Package.Builder object, it will throw a NoSuchPackageException during #build().

PiperOrigin-RevId: 161832111
---
 .../lib/analysis/AnalysisWithIOExceptionsTest.java | 66 ++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 src/test/java/com/google/devtools/build/lib/analysis/AnalysisWithIOExceptionsTest.java

(limited to 'src/test/java/com/google/devtools/build/lib/analysis')

diff --git a/src/test/java/com/google/devtools/build/lib/analysis/AnalysisWithIOExceptionsTest.java b/src/test/java/com/google/devtools/build/lib/analysis/AnalysisWithIOExceptionsTest.java
new file mode 100644
index 0000000000..7610f637cb
--- /dev/null
+++ b/src/test/java/com/google/devtools/build/lib/analysis/AnalysisWithIOExceptionsTest.java
@@ -0,0 +1,66 @@
+// 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.analysis;
+
+import static org.junit.Assert.fail;
+
+import com.google.devtools.build.lib.analysis.util.AnalysisTestCase;
+import com.google.devtools.build.lib.util.BlazeClock;
+import com.google.devtools.build.lib.vfs.FileStatus;
+import com.google.devtools.build.lib.vfs.FileSystem;
+import com.google.devtools.build.lib.vfs.Path;
+import com.google.devtools.build.lib.vfs.PathFragment;
+import com.google.devtools.build.lib.vfs.inmemoryfs.InMemoryFileSystem;
+import java.io.IOException;
+import java.util.function.Function;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** {@link AnalysisTestCase} with custom filesystem that can throw on stat if desired. */
+@RunWith(JUnit4.class)
+public class AnalysisWithIOExceptionsTest extends AnalysisTestCase {
+  private static final String FS_ROOT = "/fsg";
+
+  private static final Function<Path, String> NULL_FUNCTION = (path) -> null;
+
+  private Function<Path, String> crashMessage = NULL_FUNCTION;
+
+  @Override
+  protected FileSystem createFileSystem() {
+    return new InMemoryFileSystem(BlazeClock.instance(), PathFragment.create(FS_ROOT)) {
+      @Override
+      public FileStatus stat(Path path, boolean followSymlinks) throws IOException {
+        String crash = crashMessage.apply(path);
+        if (crash != null) {
+          throw new IOException(crash);
+        }
+        return super.stat(path, followSymlinks);
+      }
+    };
+  }
+
+  @Test
+  public void testGlobIOException() throws Exception {
+    scratch.file("b/BUILD", "sh_library(name = 'b', deps= ['//a:a'])");
+    scratch.file("a/BUILD", "sh_library(name = 'a', srcs = glob(['a.sh']))");
+    crashMessage = path -> path.toString().contains("a.sh") ? "bork" : null;
+    reporter.removeHandler(failFastHandler);
+    try {
+      update("//b:b");
+      fail("Expected failure");
+    } catch (ViewCreationFailedException expected) {
+    }
+  }
+}
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