public void It_Should_Retrieve_An_Error_When_Missing()
{
// Arrange
var stack = StackHelper.CreateSymbolTableStack();
// Act
var result = stack.Reference("test");
// Assert
Assert.NotNull(result);
Assert.True(result.IsError);
//Assert.That(result, Is.TypeOf<Undefined>());
}
public void It_Should_Find_A_Variable_On_The_Top_Of_The_Stack()
{
// Arrange
var stack = StackHelper.CreateSymbolTableStack();
stack.Define("hello", LiquidString.Create("HELLO"));
bool found = false;
// Act
stack.FindVariable("hello", (st, v) => found = true, () => { throw new Exception("This shouldn't happen"); });
// Assert
Assert.True(found);
}
public void It_Should_Retrieve_A_Defined_Local_Registry_Value()
{
// Arrange
const string str = "This is a test.";
var templateContext = new TemplateContext();
templateContext.DefineLocalRegistryVariable("test", str);
var stack = StackHelper.CreateSymbolTableStack(templateContext);
// Act
var result = stack.ReferenceLocalRegistryVariable("test");
// Assert
Assert.NotNull(result);
Assert.Equal(str, result);
}
public void It_Should_Retrieve_A_Defined_Value()
{
// Arrange
const string str = "This is a test.";
var templateContext = new TemplateContext();
templateContext.DefineLocalVariable("test", LiquidString.Create(str));
var stack = StackHelper.CreateSymbolTableStack(templateContext);
// Act
var result = stack.Reference("test");
// Assert
Assert.NotNull(result);
Assert.Equal(str, result.SuccessValue <LiquidString>().StringVal);
}
public void A_Parent_Scope_Should_Be_Consulted_When_Child_Scope_Has_No_Reference()
{
// Arrange
var stack = StackHelper.CreateSymbolTableStack();
stack.Define("hello", LiquidString.Create("HELLO"));
var localScope = new SymbolTable();
stack.Push(localScope);
// Act
var result = stack.Reference("hello");
// Assert
Assert.Equal("HELLO", result.SuccessValue <LiquidString>().StringVal);
}
public void A_Locally_Scoped_Variable_Should_Override_A_Global_Variable()
{
// Arrange
var stack = StackHelper.CreateSymbolTableStack();
stack.Define("hello", LiquidString.Create("HELLO"));
var localScope = new SymbolTable();
stack.Push(localScope);
stack.Define("hello", LiquidString.Create("HI"));
// Act
var result = stack.Reference("hello");
// Assert
Assert.Equal("HI", result.SuccessValue <LiquidString>().StringVal);
}
public void It_Should_Find_A_Variable_Nested()
{
// Arrange
var stack = StackHelper.CreateSymbolTableStack();
stack.Define("hello", LiquidString.Create("HELLO"));
var localScope = new SymbolTable();
stack.Push(localScope);
bool found = false;
// Act
stack.FindVariable("hello", (st, v) => found = true, () => { throw new Exception("This shouldn't happen"); });
// Assert
Assert.That(found, Is.True);
}
public void A_Global_Variable_Should_Reemerge_When_Scope_Override_Removed()
{
// Arrange
const string varname = "hello";
var stack = StackHelper.CreateSymbolTableStack();
stack.Define(varname, LiquidString.Create("HELLO"));
var localScope = new SymbolTable();
stack.Push(localScope);
stack.Define(varname, LiquidString.Create("HI"));
stack.Pop();
// Act
var result = stack.Reference(varname);
// Assert
Assert.Equal("HELLO", result.SuccessValue <LiquidString>().StringVal);
}