1 files changed, 127 insertions, 0 deletions
diff --git a/jimfs/src/test/java/com/google/common/jimfs/UrlTest.java b/jimfs/src/test/java/com/google/common/jimfs/UrlTest.java
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+++ b/jimfs/src/test/java/com/google/common/jimfs/UrlTest.java
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+/*
+ * Copyright 2015 Google Inc.
+ *
+ * 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.common.jimfs;
+
+import static com.google.common.base.StandardSystemProperty.LINE_SEPARATOR;
+import static com.google.common.truth.Truth.assertThat;
+import static java.nio.charset.StandardCharsets.UTF_8;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Range;
+import com.google.common.io.Resources;
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
+import java.nio.file.FileSystem;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.attribute.FileTime;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/**
+ * Tests that {@link URL} instances can be created and used from jimfs URIs.
+ *
+ * @author Colin Decker
+ */
+@RunWith(JUnit4.class)
+public class UrlTest {
+
+  private final FileSystem fs = Jimfs.newFileSystem(Configuration.unix());
+  private Path path = fs.getPath("foo");
+
+  @Test
+  public void creatUrl() throws MalformedURLException {
+    URL url = path.toUri().toURL();
+    assertThat(url).isNotNull();
+  }
+
+  @Test
+  public void readFromUrl() throws IOException {
+    Files.write(path, ImmutableList.of("Hello World"), UTF_8);
+
+    URL url = path.toUri().toURL();
+    assertThat(Resources.asCharSource(url, UTF_8).read())
+        .isEqualTo("Hello World" + LINE_SEPARATOR.value());
+  }
+
+  @Test
+  public void readDirectoryContents() throws IOException {
+    Files.createDirectory(path);
+    Files.createFile(path.resolve("a.txt"));
+    Files.createFile(path.resolve("b.txt"));
+    Files.createDirectory(path.resolve("c"));
+
+    URL url = path.toUri().toURL();
+    assertThat(Resources.asCharSource(url, UTF_8).read()).isEqualTo("a.txt\nb.txt\nc\n");
+  }
+
+  @Test
+  public void headers() throws IOException {
+    byte[] bytes = {1, 2, 3};
+    Files.write(path, bytes);
+    FileTime lastModified = Files.getLastModifiedTime(path);
+
+    URL url = path.toUri().toURL();
+    URLConnection conn = url.openConnection();
+
+    // read header fields directly
+    assertThat(conn.getHeaderFields()).containsEntry("content-length", ImmutableList.of("3"));
+    assertThat(conn.getHeaderFields())
+        .containsEntry("content-type", ImmutableList.of("application/octet-stream"));
+
+    if (lastModified != null) {
+      assertThat(conn.getHeaderFields()).containsKey("last-modified");
+      assertThat(conn.getHeaderFields()).hasSize(3);
+    } else {
+      assertThat(conn.getHeaderFields()).hasSize(2);
+    }
+
+    // use the specific methods for reading the expected headers
+    assertThat(conn.getContentLengthLong()).isEqualTo(Files.size(path));
+    assertThat(conn.getContentType()).isEqualTo("application/octet-stream");
+
+    if (lastModified != null) {
+      // The HTTP date format does not include milliseconds, which means that the last modified time
+      // returned from the connection may not be exactly the same as that of the file system itself.
+      // The difference should less than 1000ms though, and should never be greater.
+      long difference = lastModified.toMillis() - conn.getLastModified();
+      assertThat(difference).isIn(Range.closedOpen(0L, 1000L));
+    } else {
+      assertThat(conn.getLastModified()).isEqualTo(0L);
+    }
+  }
+
+  @Test
+  public void contentType() throws IOException {
+    path = fs.getPath("foo.txt");
+    Files.write(path, ImmutableList.of("Hello World"), UTF_8);
+
+    URL url = path.toUri().toURL();
+    URLConnection conn = url.openConnection();
+
+    // Should be text/plain, but this is entirely dependent on the installed FileTypeDetectors
+    String detectedContentType = Files.probeContentType(path);
+    if (detectedContentType == null) {
+      assertThat(conn.getContentType()).isEqualTo("application/octet-stream");
+    } else {
+      assertThat(conn.getContentType()).isEqualTo(detectedContentType);
+    }
+  }
+}