Initial landing of Screen, Terminal, and VT100 classes.

chrome/browser/resources/hterm/js/terminal_tests.js

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * @fileoverview hterm.Terminal unit tests.
+ */
+
+hterm.Terminal.Tests = new TestManager.Suite('hterm.Terminal.Tests');
+
+hterm.Terminal.Tests.prototype.setup = function(cx) {
+  this.setDefaults(cx,
+      { visibleColumnCount: 80,
+        visibleRowCount: 25,
+        fontSize: 15,
+        lineHeight: 17,
+        charWidth: 9,
+        scrollbarWidth: 16,
+      });
+};
+
+/**
+ * Clear out the current document and create a new hterm.Terminal object for
+ * testing.
+ *
+ * Called before each test case in this suite.
+ */
+hterm.Terminal.Tests.prototype.preamble = function(result, cx) {
+  var document = cx.window.document;
+
+  document.body.innerHTML = '';
+
+  var div = document.createElement('div');
+  div.style.position = 'absolute';
+  div.style.height = this.lineHeight * this.visibleRowCount + 'px';
+  div.style.width = this.charWidth * this.visibleColumnCount +
+      this.scrollbarWidth + 'px';
+  document.body.appendChild(div);
+
+  cx.window.terminal = this.terminal = new hterm.Terminal(
+      this.fontSize, this.lineHeight);
+
+  this.terminal.decorate(div);
+};
+
+/**
+ * Overridden addTest method.
+ *
+ * Every test in this suite needs to wait for the terminal initialization to
+ * complete asynchronously.  Rather than stick a bunch of biolerplate into each
+ * test case, we use this overridden addTest method to add a proxy around the
+ * actual test.
+ */
+hterm.Terminal.Tests.addTest = function(name, callback) {
+  function testProxy(result, cx) {
+    setTimeout(function() {
+        this.terminal.setCursorPosition(0, 0);
+        callback.apply(this, [result, cx]);
+      }, 0);
+
+    result.requestTime(200);
+  }
+
+  TestManager.Suite.addTest.apply(this, [name, testProxy]);
+};
+
+/**
+ * Fill the screen with 'X' characters one character at a time, in a way
+ * that should stress the cursor positioning code.
+ */
+hterm.Terminal.Tests.addTest('plaintext-stress-cursor-ltr',
+                             function(result, cx) {
+    for (var col = 0; col < this.visibleColumnCount; col++) {
+      for (var row = 0; row < this.visibleRowCount; row++) {
+        console.log(row, col);
+        this.terminal.screen_.setCursorPosition(row, col);
+        this.terminal.screen_.insertString('X');
+      }
+    }
+
+    result.pass();
+  });
+
+/**
+ * Fill the screen with 'X' characters one character at a time, in a way
+ * that should stress the cursor positioning code and the overwriteString()
+ * code.
+ */
+hterm.Terminal.Tests.addTest('plaintext-stress-cursor-rtl',
+                             function(result, cx) {
+    for (var col = this.visibleColumnCount - 1; col >= 0; col--) {
+      for (var row = 0; row < this.visibleRowCount; row++) {
+        this.terminal.screen_.setCursorPosition(row, col);
+        this.terminal.screen_.overwriteString('X');
+      }
+    }
+
+    result.pass();
+  });
+
+/**
+ * Fill the terminal with a lot of text as quickly as possible.
+ *
+ * This test doesn't actually assert anything, but the timing data in the test
+ * log is useful.
+ */
+hterm.Terminal.Tests.addTest('plaintext-stress-insert',
+                             function(result, cx) {
+    var chunkSize = 1000;
+    var testCount = 10;
+    var self = this;
+
+    function test(count) {
+      for (var i = count * chunkSize; i < (count + 1) * chunkSize; i++) {
+        if (i != 0)
+          self.terminal.newLine();
+        self.terminal.screen_.insertString(
+            'line ' + i + ': All work and no play makes jack a dull boy.');
+      }
+
+      if (count + 1 >= testCount) {
+        result.pass();
+      } else {
+        result.requestTime(200);
+        setTimeout(test, 0, count + 1);
+      }
+    }
+
+    test(0);
+  });