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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Linq;
using System.Web.Razor.Generator;
using System.Web.Razor.Parser.SyntaxTree;
using System.Web.Razor.Test.Framework;
using System.Web.Razor.Text;
using System.Web.WebPages.TestUtils;
using Xunit;
namespace System.Web.Razor.Test.Parser
{
public class BlockTest
{
[Fact]
public void ConstructorWithBlockBuilderSetsParent()
{
// Arrange
BlockBuilder builder = new BlockBuilder() { Type = BlockType.Comment };
Span span = new SpanBuilder() { Kind = SpanKind.Code }.Build();
builder.Children.Add(span);
// Act
Block block = builder.Build();
// Assert
Assert.Same(block, span.Parent);
}
[Fact]
public void ConstructorCopiesBasicValuesFromBlockBuilder()
{
// Arrange
BlockBuilder builder = new BlockBuilder()
{
Name = "Foo",
Type = BlockType.Helper
};
// Act
Block actual = builder.Build();
// Assert
Assert.Equal("Foo", actual.Name);
Assert.Equal(BlockType.Helper, actual.Type);
}
[Fact]
public void ConstructorTransfersInstanceOfCodeGeneratorFromBlockBuilder()
{
// Arrange
IBlockCodeGenerator expected = new ExpressionCodeGenerator();
BlockBuilder builder = new BlockBuilder()
{
Type = BlockType.Helper,
CodeGenerator = expected
};
// Act
Block actual = builder.Build();
// Assert
Assert.Same(expected, actual.CodeGenerator);
}
[Fact]
public void ConstructorTransfersChildrenFromBlockBuilder()
{
// Arrange
Span expected = new SpanBuilder() { Kind = SpanKind.Code }.Build();
BlockBuilder builder = new BlockBuilder()
{
Type = BlockType.Functions
};
builder.Children.Add(expected);
// Act
Block block = builder.Build();
// Assert
Assert.Same(expected, block.Children.Single());
}
[Fact]
public void LocateOwnerReturnsNullIfNoSpanReturnsTrueForOwnsSpan()
{
// Arrange
var factory = SpanFactory.CreateCsHtml();
Block block = new MarkupBlock(
factory.Markup("Foo "),
new StatementBlock(
factory.CodeTransition(),
factory.Code("bar").AsStatement()),
factory.Markup(" Baz"));
TextChange change = new TextChange(128, 1, new StringTextBuffer("Foo @bar Baz"), 1, new StringTextBuffer("Foo @bor Baz"));
// Act
Span actual = block.LocateOwner(change);
// Assert
Assert.Null(actual);
}
[Fact]
public void LocateOwnerReturnsNullIfChangeCrossesMultipleSpans()
{
// Arrange
var factory = SpanFactory.CreateCsHtml();
Block block = new MarkupBlock(
factory.Markup("Foo "),
new StatementBlock(
factory.CodeTransition(),
factory.Code("bar").AsStatement()),
factory.Markup(" Baz"));
TextChange change = new TextChange(4, 10, new StringTextBuffer("Foo @bar Baz"), 10, new StringTextBuffer("Foo @bor Baz"));
// Act
Span actual = block.LocateOwner(change);
// Assert
Assert.Null(actual);
}
}
}
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