public void WHEN_Template_Use_SubTemplate_Dependencies_SHOULD_Contains_All_TemplateNames_From_the_Tree()
{
//Arrange
var controllerContext = new Mock <ControllerContext>(MockBehavior.Strict);
var cachedView = new HandlebarsView((w, o) => { }, GetRandom.String(32), new Dictionary <string, HandlebarsView>());
cachedView.Dependencies.Add("SubLevel1", cachedView);
cachedView.Dependencies.Add("SubLevel2", cachedView);
cachedView.Dependencies.Add("OtherLeaf", cachedView);
var cacheProvider = CacheProviderFactory.CreateForHandlebars(cachedView);
var viewEngine = new UnitTestableHandlebarsViewEngine(cacheProvider.Object);
viewEngine.ViewLocationFormats = new string[] { "~/ViewEngine/Assets/{0}.hbs" };
viewEngine.PartialViewLocationFormats = new string[] { "~/ViewEngine/Assets/{0}.hbs" };
//Act
ViewEngineResult result = viewEngine.FindPartialView(controllerContext.Object, "Root", false);
//Assert
result.View.Should().BeOfType <HandlebarsView>();
result.View.As <HandlebarsView>().CompiledTemplate.Should().NotBeNull();
result.View.As <HandlebarsView>().VirtualPath.Should().NotBeNull();
result.View.As <HandlebarsView>().Dependencies.Should().ContainKey("SubLevel1");
result.View.As <HandlebarsView>().Dependencies.Should().ContainKey("SubLevel2");
result.View.As <HandlebarsView>().Dependencies.Should().ContainKey("OtherLeaf");
}
public void UsingDeepObjectAndDictionaryIntKeys()
{
var dict = new Dictionary <int, object>();
dict.Add(0, "Romeo");
dict.Add(42, "Tango");
dict.Add(9, "Foxtrot");
dict.Add(13, "Mike");
_vdd.Model = new
{
firstname = "John",
lastname = "Doe",
Dict = dict
};
// overwriting the ones set in this test class' constructor
var funcView = _handlebars.Compile("Hello, {{firstName}} {{Lastname}}!\n{{#each Dict}} {{@value}}{{/each}}");
_compiledView = new CompiledView(funcView, fileHash: null, layout: null);
_hbsview = new HandlebarsView(_controllerContext, _compiledView, layouts: null);
// end overwriting
string html = GetHtmlFromView();
Assert.Equal("Hello, John Doe!\n Romeo Tango Foxtrot Mike", html);
Assert.Equal(4, dict.Keys.Count); // making sure the added properties in HandlebarsView weren't added to the dictionary
}
public void MimicRealWorld()
{
var hbsview = new HandlebarsView(_controllerContext, _fixture.ViewUsingViewdata, layouts: null);
ViewDataDictionary vdd = new ViewDataDictionary();
vdd["title"] = "Greetings";
vdd.Model = new Person()
{
FirstName = "John",
LastName = "Doe"
};
// The lines above are equivalent to (in a controller):
// ViewBag.title = "Greetings";
// var model = new Person
// {
// FirstName = "John",
// LastName = "Doe"
// };
// return View(model);
string html;
using (var textWriter = new StringWriter())
{
ViewContext viewContext = new ViewContext(_controllerContext, hbsview, vdd, tempData: new TempDataDictionary(), writer: textWriter);
hbsview.Render(viewContext, textWriter);
html = textWriter.GetStringBuilder().ToString();
}
Assert.Equal("Title: Greetings. Hello, John Doe!", html);
}
public void NoLayoutOnlyRendersViewEvenIfViewSpecifiesLayout()
{
var hbsview = new HandlebarsView(_controllerContext, _fixture.ViewWithLayout, layouts: null);
string html = GetHtmlFromView(hbsview);
Assert.Equal("Hello World!", html);
}
public void LayoutsSpecifiedRendersViewAndSeveralLayouts()
{
var hbsview = new HandlebarsView(_controllerContext, _fixture.ViewWithLayout, layouts: new CompiledView[] { _fixture.LayoutView, _fixture.LayoutView });
string html = GetHtmlFromView(hbsview);
Assert.Equal("<html><html>Hello World!</html></html>", html);
}
private string GetHtmlFromView(HandlebarsView hbsview)
{
string html = null;
using (var textWriter = new StringWriter())
{
ViewContext viewContext = new ViewContext(_controllerContext, hbsview, new ViewDataDictionary(_model), tempData: new TempDataDictionary(), writer: textWriter);
hbsview.Render(viewContext, textWriter);
html = textWriter.GetStringBuilder().ToString();
}
return(html);
}
internal static Mock <ICacheProvider> CreateForHandlebars(HandlebarsView cachedView)
{
Mock <ICacheProvider> cacheProvider = new Mock <ICacheProvider>(MockBehavior.Strict);
cacheProvider
.Setup(provider => provider.GetOrAdd(
It.IsNotNull <CacheKey>(),
It.IsNotNull <Func <HandlebarsView> >(),
null,
null))
.Returns(cachedView);
return(cacheProvider);
}
public Models()
{
_controllerContext = new ControllerContext();
_handlebars = HandlebarsDotNet.Handlebars.Create();
_vdd = new ViewDataDictionary();
// The view. Note that we're also testing for case-insensitivity (lastname is lowercase here, but not in the models).
var funcView = _handlebars.Compile("Hello, {{FirstName}} {{lastname}}!");
_compiledView = new CompiledView(funcView, fileHash: null, layout: null);
_hbsview = new HandlebarsView(_controllerContext, _compiledView, layouts: null);
}
public void RenderSection_doesnt_throw_for_undefined_section_when_not_required()
{
var hbsve = new HandlebarsViewEngine();
hbsve.RegisterSectionsHelpers();
var handlebars = Handlebars.Create(hbsve.HandlebarsConfiguration);
var view = new CompiledView(handlebars.Compile("Body not rendered."), null, null);
var layout = new CompiledView(handlebars.Compile("Name: {{rendersection \"name\" required=false}}."), null, null);
var controllerContext = new ControllerContext();
var hbsview = new HandlebarsView(controllerContext, view, new[] { layout });
var html = GetHtmlFromView(hbsview);
Assert.Equal("Name: .", html);
}
public void Sidebar_not_defined_renders_default_content()
{
var hbsve = new HandlebarsViewEngine();
hbsve.RegisterSectionsHelpers();
var handlebars = Handlebars.Create(hbsve.HandlebarsConfiguration);
var view = new CompiledView(handlebars.Compile("No section here."), null, null);
var layout = new CompiledView(handlebars.Compile(source), null, null);
var controllerContext = new ControllerContext();
var hbsview = new HandlebarsView(controllerContext, view, new[] { layout });
var html = GetHtmlFromView(hbsview);
Assert.Equal("<p>Default sidebar content...</p>", html);
}
public void Sidebar_defined_renders_content_and_chrome()
{
var hbsve = new HandlebarsViewEngine();
hbsve.RegisterSectionsHelpers();
var handlebars = Handlebars.Create(hbsve.HandlebarsConfiguration);
var view = new CompiledView(handlebars.Compile("{{#definesection \"sidebar\"}}Sidebar{{/definesection}}"), null, null);
var layout = new CompiledView(handlebars.Compile(source), null, null);
var controllerContext = new ControllerContext();
var hbsview = new HandlebarsView(controllerContext, view, new[] { layout });
var html = GetHtmlFromView(hbsview);
Assert.Equal("<div id=\"sidebar\">Sidebar</div>", html);
}
public void DefineSection_can_append()
{
var hbsve = new HandlebarsViewEngine();
hbsve.RegisterSectionsHelpers();
var handlebars = Handlebars.Create(hbsve.HandlebarsConfiguration);
var view = new CompiledView(handlebars.Compile("{{#definesection \"name\"}}From view.{{/definesection}}"), null, null);
var layout1 = new CompiledView(handlebars.Compile("{{#definesection \"name\" mode=\"append\"}}Appended.{{/definesection}}"), null, null);
var layout2 = new CompiledView(handlebars.Compile("{{rendersection \"name\"}}"), null, null);
var controllerContext = new ControllerContext();
var hbsview = new HandlebarsView(controllerContext, view, new[] { layout1, layout2 });
var html = GetHtmlFromView(hbsview);
Assert.Equal("From view.Appended.", html);
}
public void Handlebars_1_9_doesnt_throw_when_compiling_mustache_as_part_of_string()
{
var vpp = new VPP(
new VPP.Dir("Views",
new VPP.Dir("Home",
new VPP.File("index.hbs", "Pi is about {{formatvalue pi '{0:N}'}}")
)
)
);
var hbsve = new HandlebarsViewEngine();
hbsve.VirtualPathProvider = vpp;
hbsve.RegisterHelper("formatvalue", (writer, context, args) =>
{
object val = args[0];
string format = args[1] as string;
ViewContext viewContext = HandlebarsView.GetViewContext(context);
HtmlHelper htmlHelper = new HtmlHelper(viewContext, viewContext.View as HandlebarsView);
string formatted = htmlHelper.FormatValue(val, format);
writer.Write(formatted);
});
var httpContext = new Mock <HttpContextBase>();
var controller = new Mock <ControllerBase>();
var routeData = new RouteData();
routeData.Values.Add("controller", "Home");
var controllerContext = new ControllerContext(httpContext.Object, routeData, controller.Object);
var viewengineResult = hbsve.FindView(controllerContext, viewName: "index", masterName: null, useCache: false);
var hbsview = viewengineResult.View;
string actual = GetHtmlFromView(hbsview, new
{
pi = 3.14159265358979
});
Assert.Equal("Pi is about 3.14", actual);
}
public void WHEN_Passing_Any_TemplateName_Resulting_View_SHOULD_Be_Cached_ByTemplateName()
{
//Arrange
var controllerContext = new Mock <ControllerContext>(MockBehavior.Strict);
var cachedView = new HandlebarsView((w, o) => { }, GetRandom.String(32), new Dictionary <string, HandlebarsView>());
var monitor = new CacheProviderFactory.CacheHistMonitor();
var cacheProvider = CacheProviderFactory.CreateForHandlebarsWithMonitor(monitor, cachedView, cachedView);
var viewEngine = new UnitTestableHandlebarsViewEngine(cacheProvider.Object);
string templateNameA = "SubLevel2";
string templateNameB = "OtherLeaf";
//Act
monitor.Reset();
monitor.CacheMissCount.ShouldBeEquivalentTo(0, "Otherwise this test is irrelevent");
monitor.CacheHitCount.ShouldBeEquivalentTo(0, "Otherwise this test is irrelevent");
var result1A = viewEngine.FindPartialView(controllerContext.Object, templateNameA, false);
monitor.CacheMissCount.ShouldBeEquivalentTo(1, "First attempt to load the TemplateA should cache miss");
var result2A = viewEngine.FindPartialView(controllerContext.Object, templateNameA, false);
monitor.CacheHitCount.ShouldBeEquivalentTo(1, "Second attempt to load the TemplateA should cache hit");
monitor.Reset();
for (int i = 0; i < 10; i++)
{
var result3A = viewEngine.FindPartialView(controllerContext.Object, templateNameA, false);
}
monitor.CacheMissCount.ShouldBeEquivalentTo(0, "Subsequent attempt to load the TemplateA should not cache miss");
monitor.CacheHitCount.Should().BeGreaterOrEqualTo(10, "Subsequent attempt to load the TemplateA should cache hit");
//--
monitor.Reset();
var result1B = viewEngine.FindPartialView(controllerContext.Object, templateNameB, false);
monitor.CacheMissCount.ShouldBeEquivalentTo(1, "First attempt to load the CultureB should cache miss, key is culture dependant");
monitor.CacheHitCount.ShouldBeEquivalentTo(0, "First attempt to load the CultureB should not cache hit, key is culture dependant");
}
internal static Mock <ICacheProvider> CreateForHandlebarsWithMonitor <T>(CacheHistMonitor monitor, T mockedOutput, HandlebarsView cachedView)
{
Mock <ICacheProvider> cacheProvider = new Mock <ICacheProvider>(MockBehavior.Strict);
cacheProvider
.Setup(provider => provider.GetOrAdd(
It.IsNotNull <CacheKey>(),
It.IsNotNull <Func <HandlebarsView> >(),
null,
null))
.Returns <CacheKey, object, object, CacheKey>((c, o, a, b) =>
{
if (monitor.CacheKeys.Contains(c.GetFullCacheKey()))
{
//Note: output object will be trash in test only.
monitor.CacheHitCount++;
return(cachedView);
}
else
{
monitor.CacheMissCount++;
monitor.CacheKeys.Add(c.GetFullCacheKey());
return(cachedView);
}
});
return(cacheProvider);
}
