public void InjectsScriptTagReferencingAssemblyAndDependencies()
{
// Arrange
var htmlTemplatePrefix = @"
<html>
<body>
<h1>Hello</h1>
Some text
<script>alert(1)</script>";
var htmlTemplateSuffix = @"
</body>
</html>";
var htmlTemplate =
$@"{htmlTemplatePrefix}
<script type='blazor-boot' custom1 custom2=""value"">some text that should be removed</script>
{htmlTemplateSuffix}";
var assemblyReferences = new string[] { "System.Abc.dll", "MyApp.ClassLib.dll", };
var jsReferences = new string[] { "some/file.js", "another.js" };
var cssReferences = new string[] { "my/styles.css" };
var instance = IndexHtmlWriter.GetIndexHtmlContents(
htmlTemplate,
"MyApp.Entrypoint",
"MyNamespace.MyType::MyMethod",
assemblyReferences,
jsReferences,
cssReferences,
linkerEnabled: true);
// Act & Assert: Start and end is not modified (including formatting)
Assert.StartsWith(htmlTemplatePrefix, instance);
Assert.EndsWith(htmlTemplateSuffix, instance);
// Assert: Boot tag is correct
var scriptTagText = instance.Substring(htmlTemplatePrefix.Length, instance.Length - htmlTemplatePrefix.Length - htmlTemplateSuffix.Length);
var parsedHtml = new HtmlParser().Parse("<html><body>" + scriptTagText + "</body></html>");
var scriptElems = parsedHtml.Body.QuerySelectorAll("script");
var linkElems = parsedHtml.Body.QuerySelectorAll("link");
var scriptElem = scriptElems[0];
Assert.False(scriptElem.HasChildNodes);
Assert.Equal("_framework/blazor.js", scriptElem.GetAttribute("src"));
Assert.Equal("MyApp.Entrypoint.dll", scriptElem.GetAttribute("main"));
Assert.Equal("MyNamespace.MyType::MyMethod", scriptElem.GetAttribute("entrypoint"));
Assert.Equal("System.Abc.dll,MyApp.ClassLib.dll", scriptElem.GetAttribute("references"));
Assert.False(scriptElem.HasAttribute("type"));
Assert.Equal(string.Empty, scriptElem.Attributes["custom1"].Value);
Assert.Equal("value", scriptElem.Attributes["custom2"].Value);
Assert.Equal("true", scriptElem.Attributes["linker-enabled"].Value);
// Assert: Also contains script tags referencing JS files
Assert.Equal(
scriptElems.Skip(1).Select(tag => tag.GetAttribute("src")),
jsReferences);
// Assert: Also contains link tags referencing CSS files
Assert.Equal(
linkElems.Select(tag => tag.GetAttribute("href")),
cssReferences);
}
public void SuppliesHtmlTemplateUnchangedIfNoBootScriptPresent()
{
// Arrange
var htmlTemplate = "<!DOCTYPE html><html><body><h1 style='color:red'>Hello</h1>Some text<script type='irrelevant'>blah</script></body></html>";
var assemblyReferences = new string[] { "System.Abc.dll", "MyApp.ClassLib.dll" };
var jsReferences = new string[] { "some/file.js", "another.js" };
var cssReferences = new string[] { "my/styles.css" };
var content = IndexHtmlWriter.GetIndexHtmlContents(
htmlTemplate, "MyApp.Entrypoint", "MyNamespace.MyType::MyMethod", assemblyReferences, jsReferences, cssReferences, linkerEnabled: true, reloadUri: "/my/reload");
// Assert
Assert.Equal(htmlTemplate, content);
}
public void SuppliesHtmlTemplateUnchangedIfNoBootScriptPresent()
{
// Arrange
var htmlTemplate = "<!DOCTYPE html><html><body><h1 style='color:red'>Hello</h1>Some text<script type='irrelevant'>blah</script></body></html>";
var dependencies = new string[]
{
"System.Abc.dll",
"MyApp.ClassLib.dll",
};
var content = IndexHtmlWriter.GetIndexHtmlContents(
htmlTemplate, "MyApp.Entrypoint", "MyNamespace.MyType::MyMethod", dependencies);
// Assert
Assert.Equal(htmlTemplate, content);
}
public void InjectsAdditionalTagsForEmbeddedContent()
{
// Arrange
var htmlTemplate = "Start <script id='testboot' type='blazor-boot'></script> End";
var embeddedContent = new[]
{
new EmbeddedResourceInfo(EmbeddedResourceKind.Static, "my/static/file"),
new EmbeddedResourceInfo(EmbeddedResourceKind.Css, "css/first.css"),
new EmbeddedResourceInfo(EmbeddedResourceKind.JavaScript, "javascript/first.js"),
new EmbeddedResourceInfo(EmbeddedResourceKind.Css, "css/second.css"),
new EmbeddedResourceInfo(EmbeddedResourceKind.JavaScript, "javascript/second.js"),
};
// Act
var resultHtml = IndexHtmlWriter.GetIndexHtmlContents(
htmlTemplate,
"MyApp.Entrypoint",
"MyNamespace.MyType::MyMethod",
assemblyReferences: new[] { "Something.dll" },
embeddedContent: embeddedContent,
linkerEnabled: true);
// Assert
var parsedHtml = new HtmlParser().Parse(resultHtml);
var blazorBootScript = parsedHtml.GetElementById("testboot");
Assert.NotNull(blazorBootScript);
Assert.Equal(
"Start "
+ blazorBootScript.OuterHtml
// First we insert the CSS file tags in order
+ Environment.NewLine + "<link rel=\"stylesheet\" href=\"css/first.css\" />"
+ Environment.NewLine + "<link rel=\"stylesheet\" href=\"css/second.css\" />"
// Then the JS file tags in order, each with 'defer'
+ Environment.NewLine + "<script src=\"javascript/first.js\" defer></script>"
+ Environment.NewLine + "<script src=\"javascript/second.js\" defer></script>"
+ " End",
resultHtml);
}
public void OmitsReloadAttributeIfNoReloadUriSpecified()
{
// Arrange
var htmlTemplate = "<script type='blazor-boot'></script>";
var assemblyReferences = new string[] { "System.Abc.dll", "MyApp.ClassLib.dll", };
// Act
var fileContents = IndexHtmlWriter.GetIndexHtmlContents(
htmlTemplate,
"MyApp.Entrypoint",
"MyNamespace.MyType::MyMethod",
assemblyReferences,
/* js references */ new string[] {},
/* js references */ new string[] {},
/* linkerEnabled */ true,
/* reloadUri */ null);
// Assert
var parsedHtml = new HtmlParser().Parse(fileContents);
var scriptElem = parsedHtml.QuerySelector("script");
Assert.False(scriptElem.HasAttribute("reload"));
}