1 files changed, 87 insertions, 0 deletions
diff --git a/src/java_tools/singlejar/javatests/com/google/devtools/build/singlejar/OptionFileExpanderTest.java b/src/java_tools/singlejar/javatests/com/google/devtools/build/singlejar/OptionFileExpanderTest.java
new file mode 100644
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+++ b/src/java_tools/singlejar/javatests/com/google/devtools/build/singlejar/OptionFileExpanderTest.java
@@ -0,0 +1,87 @@
+// Copyright 2015 Google Inc. 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.singlejar;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+
+import com.google.devtools.build.singlejar.OptionFileExpander.OptionFileProvider;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+import java.io.ByteArrayInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Unit tests for {@link OptionFileExpander}.
+ */
+@RunWith(JUnit4.class)
+public class OptionFileExpanderTest {
+
+  private static class StoredOptionFileProvider implements OptionFileProvider {
+
+    private Map<String, byte[]> availableFiles = new HashMap<>();
+
+    void addFile(String filename, String content) {
+      availableFiles.put(filename, content.getBytes(UTF_8));
+    }
+
+    @Override
+    public InputStream getInputStream(String filename) throws IOException {
+      byte[] result = availableFiles.get(filename);
+      if (result == null) {
+        throw new FileNotFoundException();
+      }
+      return new ByteArrayInputStream(result);
+    }
+  }
+
+  @Test
+  public void testNoExpansion() throws IOException {
+    OptionFileExpander expander = new OptionFileExpander(new StoredOptionFileProvider());
+    assertEquals(Arrays.asList("--some", "option", "list"),
+        expander.expandArguments(Arrays.asList("--some", "option", "list")));
+  }
+
+  @Test
+  public void testExpandSimpleOptionsFile() throws IOException {
+    StoredOptionFileProvider provider = new StoredOptionFileProvider();
+    provider.addFile("options", "--some option list");
+    OptionFileExpander expander = new OptionFileExpander(provider);
+    assertEquals(Arrays.asList("--some", "option", "list"),
+        expander.expandArguments(Arrays.asList("@options")));
+  }
+
+  @Test
+  public void testIllegalOptionsFile() {
+    StoredOptionFileProvider provider = new StoredOptionFileProvider();
+    provider.addFile("options", "'missing apostrophe");
+    OptionFileExpander expander = new OptionFileExpander(provider);
+    try {
+      expander.expandArguments(Arrays.asList("@options"));
+      fail();
+    } catch (IOException e) {
+      // Expected exception.
+    }
+  }
+}