public void TryGetAnnotationAtIndex_WhenIndexValidAndAtLeastOneAnnotation_ReturnsAnnotationAtIndex()
{
var document = new SplashDocument();
var key = new Key <string>("href");
// begin/end an empty block of annotations, these will get stripped out
document.BeginAnnotation(key, "empty");
document.BeginAnnotation(key, "empty2");
document.EndAnnotation(key);
document.EndAnnotation(key);
// add some unannotated text
document.AppendText("some ");
// add some annotated text
using (document.BeginAnnotation(key, "a"))
{
document.AppendText("text ");
using (document.BeginAnnotation(key, "b"))
document.AppendText("more");
}
// add some unannotated text
document.AppendText("...");
// begin another empty annotation at the end, should have no effect on current text
document.BeginAnnotation(key, "trailer");
Assert.Multiple(() =>
{
string value;
for (int i = 0; i < 5; i++)
{
Assert.IsFalse(document.TryGetAnnotationAtIndex(key, i, out value));
Assert.IsNull(value);
}
for (int i = 5; i < 10; i++)
{
Assert.IsTrue(document.TryGetAnnotationAtIndex(key, i, out value));
Assert.AreEqual("a", value);
}
for (int i = 10; i < 14; i++)
{
Assert.IsTrue(document.TryGetAnnotationAtIndex(key, i, out value));
Assert.AreEqual("b", value);
}
for (int i = 14; i < 17; i++)
{
Assert.IsFalse(document.TryGetAnnotationAtIndex(key, i, out value));
Assert.IsNull(value);
}
});
}
public void EndAnnotation_WhenNoCurrentAnnotation_Throws()
{
var document = new SplashDocument();
var key = new Key <string>("href");
// 1st case: no annotation table exists
Assert.Throws <InvalidOperationException>(() => document.EndAnnotation(key));
// 2nd case: annotation table exists but there is no current annotation
document.BeginAnnotation(key, "value");
document.EndAnnotation(key);
Assert.Throws <InvalidOperationException>(() => document.EndAnnotation(key));
}
public void BeginAnnotationAndEndAnnotation_PushAndPopAnnotationsOnStack()
{
var document = new SplashDocument();
var key = new Key <string>("href");
string value;
Assert.IsFalse(document.TryGetCurrentAnnotation(key, out value));
Assert.IsNull(value);
document.BeginAnnotation(key, "a");
Assert.IsTrue(document.TryGetCurrentAnnotation(key, out value));
Assert.AreEqual("a", value);
document.EndAnnotation(key);
Assert.IsFalse(document.TryGetCurrentAnnotation(key, out value));
Assert.IsNull(value);
using (document.BeginAnnotation(key, "b"))
{
Assert.IsTrue(document.TryGetCurrentAnnotation(key, out value));
Assert.AreEqual("b", value);
using (document.BeginAnnotation(key, "c"))
{
Assert.IsTrue(document.TryGetCurrentAnnotation(key, out value));
Assert.AreEqual("c", value);
}
Assert.IsTrue(document.TryGetCurrentAnnotation(key, out value));
Assert.AreEqual("b", value);
}
Assert.IsFalse(document.TryGetCurrentAnnotation(key, out value));
Assert.IsNull(value);
}
public void TryGetAnnotationAtIndex_WhenIndexValidAndAtLeastOneAnnotation_ReturnsAnnotationAtIndex()
{
var document = new SplashDocument();
var key = new Key<string>("href");
// begin/end an empty block of annotations, these will get stripped out
document.BeginAnnotation(key, "empty");
document.BeginAnnotation(key, "empty2");
document.EndAnnotation(key);
document.EndAnnotation(key);
// add some unannotated text
document.AppendText("some ");
// add some annotated text
using (document.BeginAnnotation(key, "a"))
{
document.AppendText("text ");
using (document.BeginAnnotation(key, "b"))
document.AppendText("more");
}
// add some unannotated text
document.AppendText("...");
// begin another empty annotation at the end, should have no effect on current text
document.BeginAnnotation(key, "trailer");
Assert.Multiple(() =>
{
string value;
for (int i = 0; i < 5; i++)
{
Assert.IsFalse(document.TryGetAnnotationAtIndex(key, i, out value));
Assert.IsNull(value);
}
for (int i = 5; i < 10; i++)
{
Assert.IsTrue(document.TryGetAnnotationAtIndex(key, i, out value));
Assert.AreEqual("a", value);
}
for (int i = 10; i < 14; i++)
{
Assert.IsTrue(document.TryGetAnnotationAtIndex(key, i, out value));
Assert.AreEqual("b", value);
}
for (int i = 14; i < 17; i++)
{
Assert.IsFalse(document.TryGetAnnotationAtIndex(key, i, out value));
Assert.IsNull(value);
}
});
}
public void BeginAnnotationAndEndAnnotation_PushAndPopAnnotationsOnStack()
{
var document = new SplashDocument();
var key = new Key<string>("href");
string value;
Assert.IsFalse(document.TryGetCurrentAnnotation(key, out value));
Assert.IsNull(value);
document.BeginAnnotation(key, "a");
Assert.IsTrue(document.TryGetCurrentAnnotation(key, out value));
Assert.AreEqual("a", value);
document.EndAnnotation(key);
Assert.IsFalse(document.TryGetCurrentAnnotation(key, out value));
Assert.IsNull(value);
using (document.BeginAnnotation(key, "b"))
{
Assert.IsTrue(document.TryGetCurrentAnnotation(key, out value));
Assert.AreEqual("b", value);
using (document.BeginAnnotation(key, "c"))
{
Assert.IsTrue(document.TryGetCurrentAnnotation(key, out value));
Assert.AreEqual("c", value);
}
Assert.IsTrue(document.TryGetCurrentAnnotation(key, out value));
Assert.AreEqual("b", value);
}
Assert.IsFalse(document.TryGetCurrentAnnotation(key, out value));
Assert.IsNull(value);
}
public void EndAnnotation_WhenNoCurrentAnnotation_Throws()
{
var document = new SplashDocument();
var key = new Key<string>("href");
// 1st case: no annotation table exists
Assert.Throws<InvalidOperationException>(() => document.EndAnnotation(key));
// 2nd case: annotation table exists but there is no current annotation
document.BeginAnnotation(key, "value");
document.EndAnnotation(key);
Assert.Throws<InvalidOperationException>(() => document.EndAnnotation(key));
}
