public void RendersImageTag_AddsFileVersion()
{
// Arrange
var context = MakeTagHelperContext(
attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("Alt image text") },
{ "src", "/images/test-image.png" },
{ "asp-append-version", "true" }
});
var output = MakeImageTagHelperOutput(attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("Alt image text") },
});
var hostingEnvironment = MakeHostingEnvironment();
var viewContext = MakeViewContext();
var helper = new ImageTagHelper(hostingEnvironment, MakeCache())
{
ViewContext = viewContext,
Src = "/images/test-image.png",
AppendVersion = true
};
// Act
helper.Process(context, output);
// Assert
Assert.True(output.Content.IsEmpty);
Assert.Equal("img", output.TagName);
Assert.Equal(2, output.Attributes.Count);
var srcAttribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("src"));
Assert.Equal("/images/test-image.png?v=f4OxZX_x_FO5LcGBSKHWXfwtSx-j1ncoSt3SABJtkGk", srcAttribute.Value);
}
public void RendersImageTag_DoesNotAddFileVersion()
{
// Arrange
var context = MakeTagHelperContext(
attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("Alt image text") },
{ "src", "/images/test-image.png" },
{ "asp-file-version", "false" }
});
var output = MakeImageTagHelperOutput(attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("Alt image text") },
});
var hostingEnvironment = MakeHostingEnvironment();
var viewContext = MakeViewContext();
var helper = new ImageTagHelper(hostingEnvironment, MakeCache())
{
ViewContext = viewContext,
Src = "/images/test-image.png",
FileVersion = false,
};
// Act
helper.Process(context, output);
// Assert
Assert.True(output.Content.IsEmpty);
Assert.Equal("img", output.TagName);
Assert.Equal(2, output.Attributes.Count);
var srcAttribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("src"));
Assert.Equal("/images/test-image.png", srcAttribute.Value);
}
public void PreservesOrderOfSourceAttributesWhenRun()
{
// Arrange
var context = MakeTagHelperContext(
attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("alt text") },
{ "data-extra", new HtmlString("something") },
{ "title", new HtmlString("Image title") },
{ "src", "testimage.png" },
{ "asp-append-version", "true" }
});
var output = MakeImageTagHelperOutput(
attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("alt text") },
{ "data-extra", new HtmlString("something") },
{ "title", new HtmlString("Image title") },
});
var expectedOutput = MakeImageTagHelperOutput(
attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("alt text") },
{ "data-extra", new HtmlString("something") },
{ "title", new HtmlString("Image title") },
{ "src", "testimage.png?v=f4OxZX_x_FO5LcGBSKHWXfwtSx-j1ncoSt3SABJtkGk" }
});
var hostingEnvironment = MakeHostingEnvironment();
var viewContext = MakeViewContext();
var helper = new ImageTagHelper(
hostingEnvironment,
MakeCache(),
new HtmlTestEncoder(),
MakeUrlHelperFactory())
{
ViewContext = viewContext,
Src = "testimage.png",
AppendVersion = true,
};
// Act
helper.Process(context, output);
// Assert
Assert.Equal(expectedOutput.TagName, output.TagName);
Assert.Equal(4, output.Attributes.Count);
for (int i = 0; i < expectedOutput.Attributes.Count; i++)
{
var expectedAtribute = expectedOutput.Attributes[i];
var actualAttribute = output.Attributes[i];
Assert.Equal(expectedAtribute.Name, actualAttribute.Name);
Assert.Equal(expectedAtribute.Value.ToString(), actualAttribute.Value.ToString());
}
}
public void Process_SrcDefaultsToTagHelperOutputSrcAttributeAddedByOtherTagHelper(
string src,
string srcOutput,
string expectedSrcPrefix)
{
// Arrange
var allAttributes = new TagHelperAttributeList(
new TagHelperAttributeList
{
{ "alt", new HtmlString("Testing") },
{ "asp-append-version", true },
});
var context = MakeTagHelperContext(allAttributes);
var outputAttributes = new TagHelperAttributeList
{
{ "alt", new HtmlString("Testing") },
{ "src", srcOutput },
};
var output = new TagHelperOutput(
"img",
outputAttributes,
getChildContentAsync: (_) => Task.FromResult <TagHelperContent>(new DefaultTagHelperContent()));
var hostingEnvironment = MakeHostingEnvironment();
var viewContext = MakeViewContext();
var urlHelper = new Mock <IUrlHelper>();
// Ensure expanded path does not look like an absolute path on Linux, avoiding
// https://github.com/aspnet/External/issues/21
urlHelper
.Setup(urlhelper => urlhelper.Content(It.IsAny <string>()))
.Returns(new Func <string, string>(url => url.Replace("~/", "virtualRoot/")));
var urlHelperFactory = new Mock <IUrlHelperFactory>();
urlHelperFactory
.Setup(f => f.GetUrlHelper(It.IsAny <ActionContext>()))
.Returns(urlHelper.Object);
var helper = new ImageTagHelper(
hostingEnvironment,
MakeCache(),
new HtmlTestEncoder(),
urlHelperFactory.Object)
{
ViewContext = viewContext,
AppendVersion = true,
Src = src,
};
// Act
helper.Process(context, output);
// Assert
Assert.Equal(
expectedSrcPrefix + "?v=f4OxZX_x_FO5LcGBSKHWXfwtSx-j1ncoSt3SABJtkGk",
(string)output.Attributes["src"].Value,
StringComparer.Ordinal);
}
public void Process_SrcDefaultsToTagHelperOutputSrcAttributeAddedByOtherTagHelper(
string src,
string srcOutput,
string expectedSrcPrefix)
{
// Arrange
var allAttributes = new TagHelperAttributeList(
new TagHelperAttributeList
{
{ "alt", new HtmlString("Testing") },
{ "asp-append-version", true },
});
var context = MakeTagHelperContext(allAttributes);
var outputAttributes = new TagHelperAttributeList
{
{ "alt", new HtmlString("Testing") },
{ "src", srcOutput },
};
var output = new TagHelperOutput(
"img",
outputAttributes,
getChildContentAsync: (_) => Task.FromResult<TagHelperContent>(new DefaultTagHelperContent()));
var hostingEnvironment = MakeHostingEnvironment();
var viewContext = MakeViewContext();
var urlHelper = new Mock<IUrlHelper>();
// Ensure expanded path does not look like an absolute path on Linux, avoiding
// https://github.com/aspnet/External/issues/21
urlHelper
.Setup(urlhelper => urlhelper.Content(It.IsAny<string>()))
.Returns(new Func<string, string>(url => url.Replace("~/", "virtualRoot/")));
var urlHelperFactory = new Mock<IUrlHelperFactory>();
urlHelperFactory
.Setup(f => f.GetUrlHelper(It.IsAny<ActionContext>()))
.Returns(urlHelper.Object);
var helper = new ImageTagHelper(
hostingEnvironment,
MakeCache(),
new HtmlTestEncoder(),
urlHelperFactory.Object)
{
ViewContext = viewContext,
AppendVersion = true,
Src = src,
};
// Act
helper.Process(context, output);
// Assert
Assert.Equal(
expectedSrcPrefix + "?v=f4OxZX_x_FO5LcGBSKHWXfwtSx-j1ncoSt3SABJtkGk",
(string)output.Attributes["src"].Value,
StringComparer.Ordinal);
}
public void PreservesOrderOfSourceAttributesWhenRun()
{
// Arrange
var context = MakeTagHelperContext(
attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("alt text") },
{ "data-extra", new HtmlString("something") },
{ "title", new HtmlString("Image title") },
{ "src", "testimage.png" },
{ "asp-append-version", "true" }
});
var output = MakeImageTagHelperOutput(
attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("alt text") },
{ "data-extra", new HtmlString("something") },
{ "title", new HtmlString("Image title") },
});
var expectedOutput = MakeImageTagHelperOutput(
attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("alt text") },
{ "data-extra", new HtmlString("something") },
{ "title", new HtmlString("Image title") },
{ "src", "testimage.png?v=f4OxZX_x_FO5LcGBSKHWXfwtSx-j1ncoSt3SABJtkGk" }
});
var hostingEnvironment = MakeHostingEnvironment();
var viewContext = MakeViewContext();
var helper = new ImageTagHelper(hostingEnvironment, MakeCache())
{
ViewContext = viewContext,
Src = "testimage.png",
AppendVersion = true,
};
// Act
helper.Process(context, output);
// Assert
Assert.Equal(expectedOutput.TagName, output.TagName);
Assert.Equal(4, output.Attributes.Count);
for(int i=0; i < expectedOutput.Attributes.Count; i++)
{
var expectedAtribute = expectedOutput.Attributes[i];
var actualAttribute = output.Attributes[i];
Assert.Equal(expectedAtribute.Name, actualAttribute.Name);
Assert.Equal(expectedAtribute.Value.ToString(), actualAttribute.Value.ToString());
}
}
public void RendersImageTag_AddsFileVersion()
{
// Arrange
var context = MakeTagHelperContext(
attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("Alt image text") },
{ "src", "/images/test-image.png" },
{ "asp-append-version", "true" }
});
var output = MakeImageTagHelperOutput(attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("Alt image text") },
});
var hostingEnvironment = MakeHostingEnvironment();
var viewContext = MakeViewContext();
var helper = new ImageTagHelper(hostingEnvironment, MakeCache())
{
ViewContext = viewContext,
Src = "/images/test-image.png",
AppendVersion = true
};
// Act
helper.Process(context, output);
// Assert
Assert.True(output.Content.IsEmpty);
Assert.Equal("img", output.TagName);
Assert.Equal(2, output.Attributes.Count);
var srcAttribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("src"));
Assert.Equal("/images/test-image.png?v=f4OxZX_x_FO5LcGBSKHWXfwtSx-j1ncoSt3SABJtkGk", srcAttribute.Value);
}
public void RendersImageTag_DoesNotAddFileVersion()
{
// Arrange
var context = MakeTagHelperContext(
attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("Alt image text") },
{ "src", "/images/test-image.png" },
{ "asp-append-version", "false" }
});
var output = MakeImageTagHelperOutput(attributes: new TagHelperAttributeList
{
{ "alt", new HtmlString("Alt image text") },
});
var hostingEnvironment = MakeHostingEnvironment();
var viewContext = MakeViewContext();
var helper = new ImageTagHelper(hostingEnvironment, MakeCache(), new CommonTestEncoder(), MakeUrlHelper())
{
ViewContext = viewContext,
Src = "/images/test-image.png",
AppendVersion = false
};
// Act
helper.Process(context, output);
// Assert
Assert.True(output.Content.IsEmpty);
Assert.Equal("img", output.TagName);
Assert.Equal(2, output.Attributes.Count);
var srcAttribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("src"));
Assert.Equal("/images/test-image.png", srcAttribute.Value);
}