Upsilon/UpsilonTests/FunctionTests.cs

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using Upsilon.BaseTypes;
using Upsilon.BaseTypes.Number;
using Upsilon.Evaluator;
using Xunit;
namespace UpsilonTests
{
public class FunctionTests
{
[Fact]
public void BasicFunctionTest()
{
const string input = @"
function testFunc ()
a = 100
end
a = 50
testFunc()
";
var script = new Script(input);
Assert.Empty(script.Diagnostics.Messages);
script.Evaluate();
Assert.Empty(script.Diagnostics.Messages);
var a = script.GetVariable<long>("a");
Assert.Equal(100, a);
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}
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[Fact]
public void ParameterTest()
{
const string input = @"
function testFunc (var1)
a = var1
end
a = 50
testFunc(100)
";
var script = new Script(input);
Assert.Empty(script.Diagnostics.Messages);
script.Evaluate();
Assert.Empty(script.Diagnostics.Messages);
var a = script.GetVariable<long>("a");
Assert.Equal(100, a);
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}
[Fact]
public void ParameterBindTest()
{
const string input = @"
function testFunc (var1)
var1 == true
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end
testFunc(100)
";
var script = new Script(input);
Assert.Empty(script.Diagnostics.Messages);
var val = script.Evaluate();
Assert.Single(script.Diagnostics.Messages);
Assert.True(script.HasVariable("testFunc"));
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}
[Fact]
public void BindUnusedFunctions()
{
const string input = @"
function testFunc (var1)
var1 == true
end
";
var script = new Script(input);
Assert.Empty(script.Diagnostics.Messages);
var val = script.Evaluate();
Assert.Empty(script.Diagnostics.Messages);
Assert.True(script.HasVariable("testFunc"));
}
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[Fact]
public void ReturnFromFunction()
{
const string input = @"
function testFunc ()
return 5
end
a = testFunc()
";
var script = new Script(input);
Assert.Empty(script.Diagnostics.Messages);
script.Evaluate();
Assert.Empty(script.Diagnostics.Messages);
var a = script.GetVariable<long>("a");
Assert.Equal(5, a);
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}
[Fact]
public void ReturnFromFunctionOnce()
{
const string input = @"
function testFunc ()
return 5
return 10
end
a = testFunc()
";
var script = new Script(input);
Assert.Empty(script.Diagnostics.Messages);
script.Evaluate();
Assert.Empty(script.Diagnostics.Messages);
var a = script.GetVariable<long>("a");
Assert.Equal(5, a);
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}
[Fact]
public void ReturnFromFunctionNested()
{
const string input = @"
function testFunc ()
if true then
return 5
end
return 10
end
a = testFunc()
";
var script = new Script(input);
Assert.Empty(script.Diagnostics.Messages);
script.Evaluate();
Assert.Empty(script.Diagnostics.Messages);
var a = script.GetVariable<long>("a");
Assert.Equal(5, a);
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}
[Fact]
public void ReturnFromScriptAsFunction()
{
const string input = @"
a = 100
return 60
a = 87
";
var script = new Script(input);
Assert.Empty(script.Diagnostics.Messages);
var result = script.Evaluate<long>();
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Assert.Empty(script.Diagnostics.Messages);
Assert.Equal(60, result);
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}
[Fact]
public void ReturnFromCSharpCall()
{
const string input = @"
function testFunc ()
return 100
end
";
var script = new Script(input);
Assert.Empty(script.Diagnostics.Messages);
var result = script.EvaluateFunction<long>("testFunc");
Assert.Empty(script.Diagnostics.Messages);
Assert.Equal(100, result);
}
[Fact]
public void ReturnFromCSharpCallWithParameter()
{
const string input = @"
function testFunc (b)
if b then
return 100
else
return 50
end
end
";
var script = new Script(input);
Assert.Empty(script.Diagnostics.Messages);
var result = script.EvaluateFunction<long>("testFunc", new object[] {true});
Assert.Empty(script.Diagnostics.Messages);
Assert.Equal(100, result);
var result2 = script.EvaluateFunction<long>("testFunc", new object[] {false});
Assert.Empty(script.Diagnostics.Messages);
Assert.Equal(50, result2);
}
[Fact]
public void ReturnFromCSharpCallWithParameters()
{
const string input = @"
function add (a, b)
return a + b
end
";
var script = new Script(input);
Assert.Empty(script.Diagnostics.Messages);
var result = script.EvaluateFunction<long>("add", new object[] {400, 128});
Assert.Empty(script.Diagnostics.Messages);
Assert.Equal(528, result);
}
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}
}