#36: Add PreserveStateAddonTest

Author: mvysny

src/test/java/com/flowingcode/vaadin/addons/xterm/PreserveStateAddonTest.java

@@ -0,0 +1,33 @@
+package com.flowingcode.vaadin.addons.xterm;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class PreserveStateAddonTest {
+    @Test
+    public void smoke() {
+        new PreserveStateAddon(new XTerm());
+    }
+
+    @Test
+    public void writeGoesToScrollbackBuffer() {
+        final PreserveStateAddon addon = new PreserveStateAddon(new XTerm());
+        addon.write("foo");
+        addon.writeln("bar");
+        addon.write("baz");
+        assertEquals("foobar\nbaz", addon.getScrollbackBuffer());
+    }
+
+    @Test
+    public void promptGoesToScrollbackBuffer() {
+        final PreserveStateAddon addon = new PreserveStateAddon(new XTerm());
+        addon.setPrompt("a> ");
+        addon.writePrompt();
+        addon.writeln("bar");
+        addon.setPrompt("b> ");
+        addon.writePrompt();
+        addon.writeln("baz");
+        assertEquals("a> bar\nb> baz\n", addon.getScrollbackBuffer());
+    }
+}