public void ParseTreeTests(string json, ExpectedJsonTree parseTree, JsonErrorCode[] expectedErrors)
{
RootJsonSyntax rootSyntax = JsonParser.Parse(json);
AssertParseTree(parseTree, null, 0, rootSyntax.Syntax);
// Assert expected errors.
Assert.Collection(
rootSyntax.Errors,
Enumerable.Range(0, expectedErrors.Length)
.Select <int, Action <JsonErrorInfo> >(i => errorInfo => Assert.Equal(expectedErrors[i], errorInfo.ErrorCode))
.ToArray());
}
private static int AssertParseTree(ExpectedJsonTree expectedParseTree, JsonSyntax expectedParent, int expectedStart, JsonSyntax actualParseTree)
{
Assert.IsType(expectedParseTree.ExpectedType, actualParseTree);
Assert.Same(expectedParent, actualParseTree.ParentSyntax);
Assert.Equal(expectedStart, actualParseTree.Start);
int expectedChildCount = expectedParseTree.ChildNodes.Count;
Assert.Equal(expectedChildCount, actualParseTree.ChildCount);
Assert.Throws <IndexOutOfRangeException>(() => actualParseTree.GetChild(-1));
Assert.Throws <IndexOutOfRangeException>(() => actualParseTree.GetChild(expectedChildCount));
Assert.Throws <IndexOutOfRangeException>(() => actualParseTree.GetChildStartPosition(-1));
Assert.Throws <IndexOutOfRangeException>(() => actualParseTree.GetChildStartPosition(expectedChildCount));
Assert.Throws <IndexOutOfRangeException>(() => actualParseTree.GetChildStartOrEndPosition(-1));
Assert.Throws <IndexOutOfRangeException>(() => actualParseTree.GetChildStartOrEndPosition(expectedChildCount + 1));
int length = 0;
if (expectedChildCount == 0)
{
if (actualParseTree.Length > 0)
{
Assert.True(actualParseTree.IsTerminalSymbol(out IJsonSymbol jsonSymbol));
length = jsonSymbol.Length;
}
else
{
Assert.False(actualParseTree.IsTerminalSymbol(out _));
}
}
else
{
Assert.False(actualParseTree.IsTerminalSymbol(out _));
for (int i = 0; i < expectedChildCount; i++)
{
Assert.Equal(length, actualParseTree.GetChildStartOrEndPosition(i));
length += AssertParseTree(expectedParseTree.ChildNodes[i], actualParseTree, length, actualParseTree.GetChild(i));
}
}
Assert.Equal(length, actualParseTree.GetChildStartOrEndPosition(expectedChildCount));
return(length);
}
