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Unit Tests: more compact yet also more thorough. note on gh-21.

pull/36/head
Christoph Ruegg 15 years ago
parent
7904a2c181
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5ee5e35267
1 changed files with 50 additions and 63 deletions
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  1. 113
      src/UnitTests/LinearAlgebraTests/VectorArithmeticTheory.cs

113
src/UnitTests/LinearAlgebraTests/VectorArithmeticTheory.cs
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@ -43,117 +43,104 @@ namespace MathNet.Numerics.UnitTests.LinearAlgebraTests
private T Subtract(T first, T second) { return Add(first, Minus(second)); }
[Theory, Timeout(100)]
public void CanCloneVectorUsingUnaryPlusOperator(Vector<T> vector)
public void CanPlusVector(Vector<T> vector)
{
var hash = vector.GetHashCode();
var result = +vector;
var result1 = +vector;
var result2 = vector.Plus();
Assert.That(vector.GetHashCode(), Is.EqualTo(hash));
Assert.That(result, Is.Not.SameAs(vector));
Assert.That(result.Equals(vector));
Assert.That(result1, Is.Not.SameAs(vector));
Assert.That(result1.Equals(vector));
Assert.That(result2, Is.Not.SameAs(vector));
Assert.That(result2.Equals(vector));
Assert.That(result1.Equals(result2));
}
[Theory, Timeout(100)]
public void CanNegateVectorUsingUnaryMinusOperator(Vector<T> vector)
public void CanNegateVector(Vector<T> vector)
{
var hash = vector.GetHashCode();
var result = -vector;
var result1 = -vector;
var result2 = vector.Negate();
Assert.That(vector.GetHashCode(), Is.EqualTo(hash));
Assert.That(result, Is.Not.SameAs(vector));
Assert.That((-result).Equals(vector));
Assert.That(result1, Is.Not.SameAs(vector));
Assert.That((-result1).Equals(vector));
Assert.That(result2, Is.Not.SameAs(vector));
Assert.That((-result2).Equals(vector));
Assert.That(result1.Equals(result2));
for (var i = 0; i < Math.Min(vector.Count, 20); i++)
{
Assert.That(result[i], Is.EqualTo(Minus(vector[i])), i.ToString());
Assert.That(result1[i], Is.EqualTo(Minus(vector[i])), i.ToString());
Assert.That(result2[i], Is.EqualTo(Minus(vector[i])), i.ToString());
}
}
[Theory, Timeout(100)]
public void CanAddTwoVectorsUsingOperator(Vector<T> a, Vector<T> b)
public void CanAddTwoVectors(Vector<T> a, Vector<T> b)
{
Assume.That(a.Count, Is.EqualTo(b.Count));
var hasha = a.GetHashCode();
var hashb = b.GetHashCode();
var result = a + b;
var result1 = a + b;
var result2 = a.Add(b);
var result3 = a.Clone();
result3.Add(b, result3);
Assert.That(a.GetHashCode(), Is.EqualTo(hasha));
Assert.That(b.GetHashCode(), Is.EqualTo(hashb));
Assert.That(result, Is.Not.SameAs(a));
Assert.That(result, Is.Not.SameAs(b));
Assert.That(result1, Is.Not.SameAs(a));
Assert.That(result1, Is.Not.SameAs(b));
Assert.That(result2, Is.Not.SameAs(a));
Assert.That(result2, Is.Not.SameAs(b));
Assert.That(result3, Is.Not.SameAs(a));
Assert.That(result3, Is.Not.SameAs(b));
Assert.That(result1.Equals(result2));
Assert.That(result1.Equals(result3));
for (var i = 0; i < Math.Min(a.Count, 20); i++)
{
Assert.That(result[i], Is.EqualTo(Add(a[i], b[i])), i.ToString());
Assert.That(result1[i], Is.EqualTo(Add(a[i], b[i])), i.ToString());
Assert.That(result2[i], Is.EqualTo(Add(a[i], b[i])), i.ToString());
Assert.That(result3[i], Is.EqualTo(Add(a[i], b[i])), i.ToString());
}
}
[Theory, Timeout(100)]
public void CanAddTwoVectorsInplace(Vector<T> a, Vector<T> b)
public void CanSubtractTwoVectors(Vector<T> a, Vector<T> b)
{
Assume.That(a.Count, Is.EqualTo(b.Count));
var hasha = a.GetHashCode();
var hashb = b.GetHashCode();
var result = a.Clone();
result.Add(b, result);
var result1 = a - b;
var result2 = a.Subtract(b);
var result3 = a.Clone();
result3.Subtract(b, result3);
Assert.That(a.GetHashCode(), Is.EqualTo(hasha));
Assert.That(b.GetHashCode(), Is.EqualTo(hashb));
Assert.That(result, Is.Not.SameAs(a));
Assert.That(result, Is.Not.SameAs(b));
Assert.That(result1, Is.Not.SameAs(a));
Assert.That(result1, Is.Not.SameAs(b));
Assert.That(result2, Is.Not.SameAs(a));
Assert.That(result2, Is.Not.SameAs(b));
Assert.That(result3, Is.Not.SameAs(a));
Assert.That(result3, Is.Not.SameAs(b));
Assert.That(result1.Equals(result2));
// Assert.That(result1.Equals(result3)); BUG GH-21
for (var i = 0; i < Math.Min(a.Count, 20); i++)
{
Assert.That(result[i], Is.EqualTo(Add(a[i], b[i])), i.ToString());
}
}
[Theory, Timeout(100)]
public void CanSubtractTwoVectorsUsingOperator(Vector<T> a, Vector<T> b)
{
Assume.That(a.Count, Is.EqualTo(b.Count));
var hasha = a.GetHashCode();
var hashb = b.GetHashCode();
var result = a - b;
Assert.That(a.GetHashCode(), Is.EqualTo(hasha));
Assert.That(b.GetHashCode(), Is.EqualTo(hashb));
Assert.That(result, Is.Not.SameAs(a));
Assert.That(result, Is.Not.SameAs(b));
for (var i = 0; i < Math.Min(a.Count, 20); i++)
{
Assert.That(result[i], Is.EqualTo(Subtract(a[i], b[i])), i.ToString());
}
}
[Theory, Timeout(100)]
public void CanSubtractTwoVectorsInplace(Vector<T> a, Vector<T> b)
{
Assume.That(a.Count, Is.EqualTo(b.Count));
var hasha = a.GetHashCode();
var hashb = b.GetHashCode();
var result = a.Clone();
result.Subtract(b, result);
Assert.That(a.GetHashCode(), Is.EqualTo(hasha));
Assert.That(b.GetHashCode(), Is.EqualTo(hashb));
Assert.That(result, Is.Not.SameAs(a));
Assert.That(result, Is.Not.SameAs(b));
for (var i = 0; i < Math.Min(a.Count, 20); i++)
{
Assert.That(result[i], Is.EqualTo(Subtract(a[i], b[i])), i.ToString());
Assert.That(result1[i], Is.EqualTo(Subtract(a[i], b[i])), i.ToString());
Assert.That(result2[i], Is.EqualTo(Subtract(a[i], b[i])), i.ToString());
Assert.That(result3[i], Is.EqualTo(Subtract(a[i], b[i])), i.ToString());
}
}
}

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