/// <summary>
/// Test if the given Ast is a regular CommandAst with arguments
/// </summary>
/// <param name="ast">the PowerShell Ast to test</param>
/// <returns>true if the Ast represents a PowerShell command with arguments, false otherwise</returns>
private static bool IsNamedCommandWithArguments(Ast ast)
{
return(ast is CommandAst commandAst &&
commandAst.InvocationOperator != TokenKind.Dot &&
PesterSymbolReference.GetCommandType(commandAst.GetCommandName()).HasValue&&
commandAst.CommandElements.Count >= 2);
}
/// <summary>
/// Convert a CommandAst known to represent a Pester command and a reference to the scriptfile
/// it is in into symbol representing a Pester call for code lens
/// </summary>
/// <param name="scriptFile">the scriptfile the Pester call occurs in</param>
/// <param name="pesterCommandAst">the CommandAst representing the Pester call</param>
/// <returns>a symbol representing the Pester call containing metadata for CodeLens to use</returns>
private static PesterSymbolReference ConvertPesterAstToSymbolReference(ScriptFile scriptFile, CommandAst pesterCommandAst)
{
string testLine = scriptFile.GetLine(pesterCommandAst.Extent.StartLineNumber);
PesterCommandType?commandName = PesterSymbolReference.GetCommandType(pesterCommandAst.GetCommandName());
if (commandName == null)
{
return(null);
}
// Search for a name for the test
// If the test has more than one argument for names, we set it to null
string testName = null;
bool alreadySawName = false;
for (int i = 1; i < pesterCommandAst.CommandElements.Count; i++)
{
CommandElementAst currentCommandElement = pesterCommandAst.CommandElements[i];
// Check for an explicit "-Name" parameter
if (currentCommandElement is CommandParameterAst)
{
// Found -Name parameter, move to next element which is the argument for -TestName
i++;
if (!alreadySawName && TryGetTestNameArgument(pesterCommandAst.CommandElements[i], out testName))
{
alreadySawName = true;
}
continue;
}
// Otherwise, if an argument is given with no parameter, we assume it's the name
// If we've already seen a name, we set the name to null
if (!alreadySawName && TryGetTestNameArgument(pesterCommandAst.CommandElements[i], out testName))
{
alreadySawName = true;
}
}
return(new PesterSymbolReference(
scriptFile,
commandName.Value,
testLine,
testName,
pesterCommandAst.Extent
));
}