public CoveredStatement GetNextStatement()
{
if (_stringNumber > _xmlEvents.Count || _xmlEvents.Count == 0)
{
return(null);
}
var statement = new CoveredStatement();
statement.Offset = GetOffset();
statement.OffsetEnd = GetOffsetEnd();
statement.ObjectId = GetIntValue("object_id");
if (_stringNumber < _xmlEvents.Count)
{
_doc = XDocument.Parse(_xmlEvents[_stringNumber++]);
}
else
{
_stringNumber++;
}
return(statement);
}
public void Statement_Is_Not_Covered_If_Statement_Starts_After_CoveredStatement_Ends()
{
var statement = new Statement("", 1000, 500, true);
var coveredStatement = new CoveredStatement
{
Offset = 200,
OffsetEnd = 212,
ObjectId = 999
};
var checker = new StatementChecker();
Assert.IsFalse(checker.Overlaps(statement, coveredStatement));
}
public void Statement_Is_Covered_If_Statement_Is_Starts_And_Stops_Within_CoveredStatement()
{
var statement = new Statement("", 100, 5, true);
var coveredStatement = new CoveredStatement
{
Offset = 200,
OffsetEnd = 212,
ObjectId = 999
};
var checker = new StatementChecker();
Assert.IsTrue(checker.Overlaps(statement, coveredStatement));
}
public void Statement_Is_Covered_If_CoveredStatement_Has_No_OffsetEnd_And_Statement_Starts_After_CoveredStatement()
{
var statement = new Statement("", 100, 10, true);
var coveredStatement = new CoveredStatement
{
Offset = 105,
OffsetEnd = -1,
ObjectId = 999
};
var checker = new StatementChecker();
Assert.IsTrue(checker.Overlaps(statement, coveredStatement));
}
public bool Overlaps(Statement statement, CoveredStatement coveredStatement)
{
var coveredOffsetStart = coveredStatement.Offset / 2;
var coveredOffsetEnd = coveredStatement.OffsetEnd;
if (coveredOffsetEnd == -1)
{
// Last statement in the batch, so only covered if the 'start' is equal to or less than the statement start
return(statement.Offset >= coveredOffsetStart);
}
var statementStart = statement.Offset;
var statementEnd = statementStart + statement.Length;
coveredOffsetEnd = coveredStatement.OffsetEnd / 2;
return(statementStart >= coveredOffsetStart && statementEnd <= coveredOffsetEnd);
}
public void Statement_Is_Not_Covered_If_Statement_Starts_Before_Covered_Statement()
{
var statement = new Statement
{
IsCoverable = true,
Offset = 10,
Length = 500
};
var coveredStatement = new CoveredStatement
{
Offset = 200,
OffsetEnd = 212,
ObjectId = 999
};
var checker = new StatementChecker();
Assert.IsFalse(checker.Overlaps(statement, coveredStatement));
}
public bool Overlaps(Statement statement, CoveredStatement coveredStatement)
{
var coveredOffsetStart = coveredStatement.Offset / 2;
var coveredOffsetEnd = coveredStatement.OffsetEnd;
if (coveredOffsetEnd == -1)
{
// Last statement in the batch, so only covered if the 'start' is equal to or less than the statement start
return(statement.Offset >= coveredOffsetStart);
}
var statementStart = statement.Offset;
var statementEnd = statementStart + statement.Length;
coveredOffsetEnd = coveredStatement.OffsetEnd / 2;
if (statementStart >= coveredOffsetStart && statementEnd <= coveredOffsetEnd)
{
return(true);
}
//this is a little painful:
// https://connect.microsoft.com/SQLServer/feedback/details/3124768
/*
* i don't think this is an actual problem because on the offsetEnd is wrong, the offsetStart is right so even if there was something like:
* exec a;b;
* which would execute proc a and b, we wouldn't mark b as executed when a was executed because the start would be before b
*/
coveredOffsetEnd = coveredOffsetEnd + 2;
if (statementStart >= coveredOffsetStart && statementEnd <= coveredOffsetEnd)
{
return(true);
}
return(false);
}