Add unit test for StreamReaderUtil

Change-Id: I333d7a498862cc1dfb6dfe467f97cdaa3372b273
Reviewed-on: http://gerrit.dmdirc.com/4064
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

test/com/dmdirc/util/io/StreamReaderTest.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2006-2014 DMDirc Developers
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package com.dmdirc.util.io;
+
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.runners.MockitoJUnitRunner;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+@RunWith(MockitoJUnitRunner.class)
+public class StreamReaderTest {
+
+    @Test
+    public void testGetListDiscarding() throws Exception {
+        final InputStream inputStream = spy(getClass().getResource("test5.txt").openStream());
+        final StreamReader streamReader = new StreamReader(inputStream);
+        assertNull(streamReader.getList());
+        streamReader.run();
+        assertNull(streamReader.getList());
+        verify(inputStream, atLeastOnce()).read(any(byte[].class), anyInt(), anyInt());
+    }
+
+    @Test
+    public void testGetListBuffer() throws Exception {
+        final StringBuffer stringBuffer = new StringBuffer();
+        final StreamReader streamReader = new StreamReader(getClass().getResource("test5.txt")
+                .openStream(),
+                stringBuffer);
+        assertNull(streamReader.getList());
+        streamReader.run();
+        assertNull(streamReader.getList());
+        assertEquals("Line 1\nLine 2\nLine 3", stringBuffer.toString());
+    }
+
+    @Test
+    public void testGetListList() throws Exception {
+        final List<String> list = new ArrayList<>();
+        final StreamReader streamReader = new StreamReader(getClass().getResource("test5.txt")
+                .openStream(), list);
+        assertTrue(streamReader.getList().isEmpty());
+        streamReader.run();
+        assertEquals(4, list.size());
+        assertEquals("", list.get(0));
+        assertEquals("Line 1", list.get(1));
+        assertEquals("Line 2", list.get(2));
+        assertEquals("Line 3", list.get(3));
+    }
+}