1 files changed, 101 insertions, 0 deletions
diff --git a/src/test/java/org/yaml/snakeyaml/reader/ReaderBomTest.java b/src/test/java/org/yaml/snakeyaml/reader/ReaderBomTest.java
new file mode 100644
index 00000000..b5d6578c
--- /dev/null
+++ b/src/test/java/org/yaml/snakeyaml/reader/ReaderBomTest.java
@@ -0,0 +1,101 @@
+/*
+ * See LICENSE file in distribution for copyright and licensing information.
+ */
+package org.yaml.snakeyaml.reader;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StringReader;
+import java.nio.charset.Charset;
+
+import junit.framework.TestCase;
+
+public class ReaderBomTest extends TestCase {
+
+    public void testReader() throws IOException {
+        java.io.Reader input = new StringReader("test");
+        Reader reader = new Reader(input);
+        assertEquals('t', reader.peek());
+        reader.forward(1);
+        assertEquals('e', reader.peek());
+        reader.forward(1);
+        assertEquals('s', reader.peek());
+        reader.forward(1);
+        assertEquals('t', reader.peek());
+        reader.forward(1);
+        assertEquals('\u0000', reader.peek());
+    }
+
+    public void testNoBom() throws IOException {
+        byte[] data = "test".getBytes("UTF-8");
+        ByteArrayInputStream input = new ByteArrayInputStream(data);
+        java.io.Reader r = new UnicodeReader(input);
+        Reader reader = new Reader(r);
+        assertEquals('t', reader.peek());
+        assertEquals(Charset.forName("UTF-8"), reader.getEncoding());
+        reader.forward(1);
+        assertEquals('e', reader.peek());
+        reader.forward(1);
+        assertEquals('s', reader.peek());
+        reader.forward(1);
+        assertEquals('t', reader.peek());
+        reader.forward(1);
+        assertEquals('\u0000', reader.peek());
+        r.close();
+    }
+
+    public void testUtf8Bom() throws IOException {
+        File file = new File("src/test/resources/reader/utf-8.txt");
+        assertTrue("Test file not found: " + file.getAbsolutePath(), file.exists());
+        InputStream input = new FileInputStream(file);
+        Reader reader = new Reader(new UnicodeReader(input));
+        assertEquals('t', reader.peek());
+        reader.forward(1);
+        assertEquals('e', reader.peek());
+        reader.forward(1);
+        assertEquals('s', reader.peek());
+        reader.forward(1);
+        assertEquals('t', reader.peek());
+        reader.forward(1);
+        assertEquals('\u0000', reader.peek());
+        assertEquals(Charset.forName("UTF-8"), reader.getEncoding());
+    }
+
+    public void testUnicodeLeBom() throws IOException {
+        File file = new File("src/test/resources/reader/unicode-16le.txt");
+        assertTrue("Test file not found: " + file.getAbsolutePath(), file.exists());
+        InputStream input = new FileInputStream(file);
+        Reader reader = new Reader(new UnicodeReader(input));
+        assertEquals('t', reader.peek());
+        reader.forward(1);
+        assertEquals('e', reader.peek());
+        reader.forward(1);
+        assertEquals('s', reader.peek());
+        reader.forward(1);
+        assertEquals('t', reader.peek());
+        reader.forward(1);
+        assertEquals('\u0000', reader.peek());
+        assertEquals(Charset.forName("UTF-16LE"), reader.getEncoding());
+    }
+
+    public void testUnicodeBeBom() throws IOException {
+        File file = new File("src/test/resources/reader/unicode-16be.txt");
+        assertTrue("Test file not found: " + file.getAbsolutePath(), file.exists());
+        InputStream input = new FileInputStream(file);
+        Reader reader = new Reader(new UnicodeReader(input));
+        assertEquals('t', reader.peek());
+        reader.forward(1);
+        assertEquals('e', reader.peek());
+        reader.forward(1);
+        assertEquals('s', reader.peek());
+        reader.forward(1);
+        assertEquals('t', reader.peek());
+        reader.forward(1);
+        assertEquals('\u0000', reader.peek());
+        assertEquals(Charset.forName("UTF-16BE"), reader.getEncoding());
+    }
+
+}