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using System;

using NUnit.Framework;

using Python.Runtime;

namespace Python.EmbeddingTest

{

/// <remarks>

/// PyFloat implementation isn't complete, thus tests aren't complete.

/// </remarks>

public class TestPyFloat

{

[Test]

public void FloatCtor()

{

const float a = 4.5F;

var i = new PyFloat(a);

Assert.True(PyFloat.IsFloatType(i));

// Assert.Assert.That(a.ToInt32(), Is.EqualTo(i));

}

[Test]

public void PyObjectCtorGood()

{

var i = new PyFloat(5);

var a = new PyFloat(i);

Assert.True(PyFloat.IsFloatType(a));

// Assert.Assert.That(a.ToInt32(), Is.EqualTo(i));

}

[Test]

public void PyObjectCtorBad()

{

var i = new PyString("Foo");

PyFloat a = null;

var ex = Assert.Throws<ArgumentException>(() => a = new PyFloat(i));

StringAssert.StartsWith("object is not a float", ex.Message);

Assert.IsNull(a);

}

[Test]

public void DoubleCtor()

{

const double a = 4.5;

var i = new PyFloat(a);

Assert.True(PyFloat.IsFloatType(i));

// Assert.Assert.That(a.ToInt32(), Is.EqualTo(i));

}

[Test]

public void StringIntCtor()

{

const string a = "5";

var i = new PyFloat(a);

Assert.True(PyFloat.IsFloatType(i));

// Assert.Assert.That(a.ToInt32(), Is.EqualTo(i));

}

[Test]

public void StringDoubleCtor()

{

const string a = "4.5";

var i = new PyFloat(a);

Assert.True(PyFloat.IsFloatType(i));

// Assert.Assert.That(a.ToInt32(), Is.EqualTo(i));

}

[Test]

public void StringBadCtor()

{

const string i = "Foo";

PyFloat a = null;

var ex = Assert.Throws<PythonException>(() => a = new PyFloat(i));

StringAssert.StartsWith("could not convert string to float", ex.Message);

Assert.IsNull(a);

}

[Test]

public void IsFloatTrue()

{

const double a = 4.5;

var i = new PyFloat(a);

Assert.True(PyFloat.IsFloatType(i));

}

[Test]

public void IsFloatFalse()

{

var i = new PyString("Foo");

Assert.False(PyFloat.IsFloatType(i));

}

[Test]

public void AsFloatGood()

{

const double a = 4.5;

var i = new PyFloat(a);

PyFloat s = PyFloat.AsFloat(i);

Assert.True(PyFloat.IsFloatType(s));

// Assert.Assert.That(a.ToInt32(), Is.EqualTo(i));

}

[Test]

public void AsFloatBad()

{

var s = new PyString("Foo");

PyFloat a = null;

var ex = Assert.Throws<PythonException>(() => a = PyFloat.AsFloat(s));

StringAssert.StartsWith("could not convert string to float", ex.Message);

Assert.IsNull(a);

}

[Test]

public void CompareTo()

{

var v = new PyFloat(42);

Assert.That(v.CompareTo(42f), Is.EqualTo(0));

Assert.That(v.CompareTo(42d), Is.EqualTo(0));

Assert.That(v.CompareTo(41f), Is.EqualTo(1));

Assert.That(v.CompareTo(41d), Is.EqualTo(1));

Assert.That(v.CompareTo(43f), Is.EqualTo(-1));

Assert.That(v.CompareTo(43d), Is.EqualTo(-1));

}

[Test]

public void Equals()

{

var v = new PyFloat(42);

Assert.That(v.Equals(42f), Is.True);

Assert.That(v.Equals(42d), Is.True);

Assert.That(v.Equals(41f), Is.False);

Assert.That(v.Equals(41d), Is.False);

}