chore(ngdocs): provide test code for lunr search in docs

docs/component-spec/NavigationCtrlSpec.js

@@ -0,0 +1,72 @@
+describe("DocsNavigationCtrl", function() {
+
+  beforeEach(module('docsApp'));
+
+  var ctrl, $scope;
+
+  beforeEach(function() {
+    module(function($provide) {
+      $provide.value('docsPages', []);
+      $provide.factory('docsSearch', function() {
+        return function(q) {
+          return ['one','two','three'];
+        };
+      });
+    });
+    inject(function($controller, $rootScope, $location, docsSearch) {
+      $scope = $rootScope.$new();
+      ctrl = $controller('DocsNavigationCtrl', {
+        $scope : $scope,
+        $location : $location,
+        docsSearch : docsSearch
+      });
+    });
+  });
+
+  it("should search and return data from docsSearch", function() {
+    $scope.search('1234')
+    expect($scope.results.join(',')).toBe('one,two,three');
+    expect($scope.hasResults).toBe(true);
+  });
+
+  it("should avoid searching if the search term is too short", function() {
+    $scope.search('1')
+    expect($scope.results.length).toBe(0);
+    expect($scope.hasResults).toBe(false);
+  });
+
+  it("should set the columns classname based on the total grouped results", function() {
+    $scope.search('1234');
+    expect($scope.colClassName).toBe('cols-3');
+
+    $scope.search('1');
+    expect($scope.colClassName).toBe(null);
+  });
+
+  it("should hide and clear the results when called", function() {
+    $scope.hasResults = true;
+    $scope.results = ['one'];
+    $scope.colClassName = '...';
+    $scope.hideResults();
+    expect($scope.hasResults).toBe(false);
+    expect($scope.results.length).toBe(0);
+    expect($scope.colClassName).toBe(null);
+  });
+
+  it("should hide, clear and change the path of the page when submitted", inject(function($location) {
+    $scope.hasResults = true;
+    $scope.results = {
+      api : [
+        {url : '/home'}
+      ],
+      tutorial : [
+        {url : '/tutorial'}
+      ]
+    };
+    $scope.submit();
+    expect($location.path()).toBe('/home');
+    expect($scope.results.length).toBe(0);
+    expect($scope.hasResults).toBe(false);
+  }));
+
+});