Add unit test to ensure PumpReader works correctly

terminal/src/test/java/org/jline/utils/PumpReaderTest.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2002-2017, the original author or authors.
+ *
+ * This software is distributable under the BSD license. See the terms of the
+ * BSD license in the documentation provided with this software.
+ *
+ * http://www.opensource.org/licenses/bsd-license.php
+ */
+package org.jline.utils;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.nio.charset.StandardCharsets;
+
+public class PumpReaderTest {
+
+    private PumpReader writeInput() {
+        PumpReader pump = new PumpReader();
+        PrintWriter writer = new PrintWriter(pump.getWriter());
+
+        // Write some input
+        writer.println("Hello world!");
+        writer.println("㐀");
+
+        return pump;
+    }
+
+    @Test
+    public void testReader() throws IOException {
+        PumpReader pump = writeInput();
+
+        // Read it again
+        BufferedReader reader = new BufferedReader(pump);
+        assertEquals("Hello world!", reader.readLine());
+        assertEquals("㐀", reader.readLine());
+    }
+
+    @Test
+    public void testInputStream() throws IOException {
+        PumpReader pump = writeInput();
+
+        // Read it using an input stream
+        BufferedReader reader = new BufferedReader(new InputStreamReader(pump.createInputStream(StandardCharsets.UTF_8), StandardCharsets.UTF_8));
+        assertEquals("Hello world!", reader.readLine());
+        assertEquals("㐀", reader.readLine());
+    }
+
+}