Move frontend tests out of zerver/tests/.

This fixes an unfortunate bug where the backend tests in
zerver/tests.py were not being run automatically, and also makes these
a bit easier to find.

frontend_tests/casperjs/samples/googlematch.js

@@ -0,0 +1,68 @@
+/*jshint strict:false*/
+/*global CasperError console phantom require*/
+
+/**
+ * Takes provided terms passed as arguments and query google for the number of
+ * estimated results each have.
+ *
+ * Usage:
+ *     $ casperjs googlematch.js nicolas chuck borris
+ *     nicolas: 69600000
+ *     chuck:   49500000
+ *     borris:  2370000
+ *     winner is "nicolas" with 69600000 results
+ */
+
+var casper = require("casper").create({
+    verbose: true
+});
+
+casper.fetchScore = function() {
+    return this.evaluate(function() {
+        var result = __utils__.findOne('#resultStats').innerText;
+        return parseInt(/Environ ([0-9\s]{1,}).*/.exec(result)[1].replace(/\s/g, ''), 10);
+    });
+};
+
+var terms = casper.cli.args;
+
+if (terms.length < 2) {
+    casper
+        .echo("Usage: $ casperjs googlematch.js term1 term2 [term3]...")
+        .exit(1)
+    ;
+}
+
+var scores = [];
+
+casper.echo("Let the match begin between \"" + (terms.join('", "')) + "\"!");
+
+casper.start("http://google.fr/");
+
+casper.each(terms, function(casper, term, i) {
+    this.echo('Fecthing score for ' + term);
+    this.then(function() {
+        this.fill('form[action="/search"]', {q: term}, true);
+    });
+    this.then(function() {
+        var score = this.fetchScore();
+        scores.push({
+            term: term,
+            score: score
+        });
+        this.echo(term + ': ' + score);
+    });
+});
+
+casper.run(function() {
+    if (scores.length === 0) {
+        this.echo("No result found");
+    } else {
+        scores.sort(function(a, b) {
+            return b.score - a.score;
+        });
+        var winner = scores[0];
+        this.echo("Winner is \"" + winner.term + "\" with " + winner.score + " results");
+    }
+    this.exit();
+});