more test for command history

src/__tests__/casperjs/casperUtils.js

@@ -78,6 +78,20 @@ var CasperUtils = {
       };
     },
 
+    selectorMatchesRegex: function(selector, regex) {
+      return function then() {
+        this.test.assertEvalEquals(function(selector, regex) {
+            return !!document.querySelector(selector).innerText
+              .match(regex);
+          },
+          true,
+          'Checking that selector "' + selector + '" matches regex "' +
+            regex + '".',
+          {selector: selector, regex: regex}
+        );
+      };
+    },
+
     selectorContainsText: function(selector, text) {
       return function then() {
         this.test.assertEvalEquals(function(selector) {

src/__tests__/casperjs/command_history_test.js

@@ -0,0 +1,25 @@
+var CasperUtils = require('./casperUtils').CasperUtils;
+
+casper.start(
+  CasperUtils.getUrl(),
+  function() {
+    this.test.assertTitle('Learn Git Branching');
+
+    casper.waitFor(CasperUtils.waits.jsMount)
+    .wait(300)
+    .then(CasperUtils.enterCommand('git commit'))
+    .wait(800)
+    .then(CasperUtils.screenshot.entirePage)
+    .then(function() {
+      this.page.sendEvent('keypress', this.page.event.key.Up);
+    })
+    .wait(700)
+    .then(CasperUtils.screenshot.entirePage)
+    // Our command got remembered
+    .then(CasperUtils.asserts.selectorMatchesRegex(
+      '#commandLineBar p.command',
+      // some weird whitespace conversion of non-breaking space
+      /git\scommit/g
+    ))
+    .then(CasperUtils.testDone);
+}).run();