Implement tests for `Buffer` and `BufferSet`

[mirror_xterm.js.git] / src / Buffer.test.ts

diff --git a/src/Buffer.test.ts b/src/Buffer.test.ts
new file mode 100644 (file)
index 0000000..f68baa8
--- /dev/null
+++ b/src/Buffer.test.ts
@@ -0,0 +1,31 @@
+/**
+ * @license MIT
+ */
+import { assert } from 'chai';
+import { ITerminal } from './Interfaces';
+import { Buffer } from './Buffer';
+import { CircularList } from './utils/CircularList';
+
+describe('Buffer', () => {
+  let terminal: ITerminal;
+  let buffer: Buffer;
+
+  beforeEach(() => {
+    terminal = <any>{
+      cols: 80,
+      rows: 24,
+      scrollback: 1000
+    };
+    buffer = new Buffer(terminal);
+  });
+
+  describe('constructor', () => {
+    it('should create a CircularList with max length equal to scrollback, for its lines', () => {
+      assert.instanceOf(buffer.lines, CircularList);
+      assert.equal(buffer.lines.maxLength, terminal.scrollback);
+    });
+    it('should set the Buffer\'s scrollBottom value equal to the terminal\'s rows -1', () => {
+      assert.equal(buffer.scrollBottom, terminal.rows - 1);
+    });
+  });
+});