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tests(stdlib): reorganize and expand StandardLibrary tests

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- Switch tests to use Initializer.InitializeAll for setup
- Split stdlib tests by category: Angle, Rounding, Trig (incl. hyperbolic), NumberTheory, Random
- Add comprehensive tests invoking functions via InputInterpreter.Interpret()
- Register Bernoulli in Initializer so random tests cover
This commit is contained in:
Jordan Wages 2025-08-21 04:04:46 -05:00
commit 106efbc86e
7 changed files with 410 additions and 3 deletions
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src/Tests/TrigonometryFunctionsTests.cs Normal file
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using System.Globalization;
using CSMic;
using CSMic.StandardLibrary;
namespace CSMic.Tests;
public class TrigonometryFunctionsTests
{
private InputInterpreter _interp = null!;
[SetUp]
public void Setup()
{
CultureInfo.CurrentCulture = CultureInfo.InvariantCulture;
_interp = new InputInterpreter();
Initializer.InitializeAll(_interp);
}
private static void AssertSuccess(decimal result, decimal expected, InputInterpreter interp)
{
Assert.That(result, Is.EqualTo(expected));
Assert.That(interp.NumericValue, Is.EqualTo(expected));
Assert.That(interp.StringValue, Is.EqualTo(string.Empty));
}
private static void AssertApprox(decimal result, decimal expected, decimal tol, InputInterpreter interp)
{
Assert.That(Math.Abs(result - expected) <= tol, $"Expected ~{expected} ± {tol}, got {result}");
Assert.That(interp.StringValue, Is.EqualTo(string.Empty));
}
[Test]
public void BasicTrig_ZeroPoints()
{
AssertSuccess(_interp.Interpret("sin(0)"), 0m, _interp);
AssertSuccess(_interp.Interpret("cos(0)"), 1m, _interp);
AssertSuccess(_interp.Interpret("tan(0)"), 0m, _interp);
}
[Test]
public void BasicTrig_CommonAngles()
{
AssertApprox(_interp.Interpret("sin(pi/2)"), 1m, 0.0000000000001m, _interp);
AssertApprox(_interp.Interpret("cos(pi/2)"), 0m, 0.0000000000001m, _interp);
AssertApprox(_interp.Interpret("tan(pi/4)"), 1m, 0.0000000000001m, _interp);
}
[Test]
public void InverseTrig_ZeroPoints()
{
AssertSuccess(_interp.Interpret("asin(0)"), 0m, _interp);
AssertSuccess(_interp.Interpret("acos(1)"), 0m, _interp);
AssertSuccess(_interp.Interpret("atan(0)"), 0m, _interp);
AssertSuccess(_interp.Interpret("atan2(0, 1)"), 0m, _interp);
}
[Test]
public void InverseTrig_CommonValues()
{
// asin(1) ~= pi/2, acos(0) ~= pi/2, atan(1) ~= pi/4, atan2(1,0) ~= pi/2
AssertApprox(_interp.Interpret("asin(1)"), 1.5707963267948966m, 0.0000000000001m, _interp);
AssertApprox(_interp.Interpret("acos(0)"), 1.5707963267948966m, 0.0000000000001m, _interp);
AssertApprox(_interp.Interpret("atan(1)"), 0.7853981633974483m, 0.0000000000001m, _interp);
AssertApprox(_interp.Interpret("atan2(1, 0)"), 1.5707963267948966m, 0.0000000000001m, _interp);
}
}
public class HyperbolicTrigFunctionsTests
{
private InputInterpreter _interp = null!;
[SetUp]
public void Setup()
{
CultureInfo.CurrentCulture = CultureInfo.InvariantCulture;
_interp = new InputInterpreter();
Initializer.InitializeAll(_interp);
}
private static void AssertSuccess(decimal result, decimal expected, InputInterpreter interp)
{
Assert.That(result, Is.EqualTo(expected));
Assert.That(interp.NumericValue, Is.EqualTo(expected));
Assert.That(interp.StringValue, Is.EqualTo(string.Empty));
}
[Test]
public void Hyperbolic_ZeroPoints()
{
AssertSuccess(_interp.Interpret("sinh(0)"), 0m, _interp);
AssertSuccess(_interp.Interpret("cosh(0)"), 1m, _interp);
AssertSuccess(_interp.Interpret("tanh(0)"), 0m, _interp);
AssertSuccess(_interp.Interpret("asinh(0)"), 0m, _interp);
AssertSuccess(_interp.Interpret("acosh(1)"), 0m, _interp);
AssertSuccess(_interp.Interpret("atanh(0)"), 0m, _interp);
}
}