public void AltTest()
{
var expr = new AltExpression(new[] {
new StructureExpression("foo"),
new StructureExpression("bar")
});
var result = expr.Run();
Assert.Collection(result,
item =>
{
Assert.IsType <StructureResultTree>(item);
Assert.Equal("foo", (item as StructureResultTree).Name);
Assert.Collection((item as StructureResultTree).FirstChild,
item => Assert.Null(item)
);
Assert.Collection((item as StructureResultTree).NextSibling,
item => Assert.Null(item)
);
},
item =>
{
Assert.IsType <StructureResultTree>(item);
Assert.Equal("bar", (item as StructureResultTree).Name);
Assert.Collection((item as StructureResultTree).FirstChild,
item => Assert.Null(item)
);
Assert.Collection((item as StructureResultTree).NextSibling,
item => Assert.Null(item)
);
}
);
}
public void EmptyInput()
{
// Given
var expression = new AltExpression(
new TextExpression("x"),
new TextExpression("y")
);
// When
var result = expression.Transform("");
// Then
Assert.Null(result);
}
public void MatchFirst()
{
// Given
var expression = new AltExpression(
new TextExpression("x"),
new TextExpression("y")
);
// When
var result = expression.Transform("x");
// Then
Assert.Equal("x", result);
}
public void MatchNeither()
{
// Given
var expression = new AltExpression(
new TextExpression("x"),
new TextExpression("y")
);
// When
var result = expression.Transform("z");
// Then
Assert.Null(result);
}
