public void ReportInvalidNumber_GivenLongNumber()
{
var text = @"var a = [124654541321534154153151]";
var expectedDiagnostic = "The number 124654541321534154153151 isn't valid <int>";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}
public void Report_UnexpectedToken()
{
var text = @"1 [(] + 4";
var expectedDiagnostic = "ERROR: Unexpected token <OpenParensToken>, expected <EofToken>";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}
public void ReportUnexpectedToken_GivenEmptyExpression()
{
var text = @"[]";
var expectedDiagnostic = "ERROR: Unexpected token <EofToken>, expected <IdentifierToken>";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}
public void ReportUndefinedUnaryOperator_GivenUnaryExpression()
{
var text = @"[+]true";
var expectedDiagnostic = "Unary operator '+' is not defined for type <bool>";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}
public void ReportUndefinedBinaryOperator_GivenBinaryExpression()
{
var text = @"1 [&&] true";
var expectedDiagnostic = "Binary operator '&&' is not defined for type <int> and <bool>";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}
public void ReportUndefinedVariable_GivenUndefinedVariable()
{
var text = @"[a] + 10";
var expectedDiagnostic = "Variable 'a' doesn't exist";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}
public void ReportCannotConvert_GivenAssignmentExpressionWithIntVariableAndBoolValue()
{
var text = @"
{
var b = 10
[b] = false
}
";
var expectedDiagnostic = "Cannot convert from <bool> to <int>";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}
public void ReportCannotAssign_GivenAssignmentExpressionWithReadonlyVariable()
{
var text = @"
{
let y = 10
y [=] 0
}
";
var expectedDiagnostic = "Variable 'y' is readonly and cannot be assigned to";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}
public void NotEndUpInInfiniteLoop_GivenIncompleteStatement()
{
var text = @"
{
[)][]
";
var expectedDiagnostics = @"
ERROR: Unexpected token <CloseParensToken>, expected <IdentifierToken>
ERROR: Unexpected token <EofToken>, expected <CloseBraceToken>
";
Assert.That(text, Has.Diagnostics(expectedDiagnostics));
}
public void ReportCannotConvert_Given_IfStatement()
{
var text = @"
{
var x = 0
if [10]
x = 10
}
";
var expectedDiagnostic = "Cannot convert from <int> to <bool>";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}
public void ReportCannotConvert_ForUpperBound_GivenForStatement()
{
var text = @"
{
var x = 0
var result = 0
for x = 10 to [false]
result = result + x
}
";
var expectedDiagnostic = "Cannot convert from <bool> to <int>";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}
public void ReportCannotConvert_Given_WhileStatement()
{
var text = @"
{
var x = 0
var result = 0
while [10]
result = result + x
}
";
var expectedDiagnostic = "Cannot convert from <int> to <bool>";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}
public void ReportRedeclaration_Given_AssignmentExpression()
{
var text = @"
{
var x = 100
var y = 10
{
var x = 10
}
var [x] = 5
}";
var expectedDiagnostic = "Variable 'x' is already declared";
Assert.That(text, Has.Diagnostics(expectedDiagnostic));
}