public void CaseInvariance()
{
var left = new DiagramPosition(5, 'a');
var right = new DiagramPosition(5, 'A');
Assert.Equal(left, right);
}
public void GetHashCode_GivenSame_ReturnsSame()
{
var pos = new DiagramPosition(1, 'a');
var same = new DiagramPosition(1, 'a');
Assert.Equal(pos.GetHashCode(), same.GetHashCode());
}
public void CompareTo_Subposition_ReturnsLessThan()
{
var pos = new DiagramPosition(1);
var same = new DiagramPosition(1, 'a');
Assert.Equal(-1, pos.CompareTo(same));
}
public void CompareTo_ParentPosition_ReturnsGreaterThan()
{
var pos = new DiagramPosition(1, 'a');
var same = new DiagramPosition(1);
Assert.Equal(1, pos.CompareTo(same));
}
public void GetNextSubposition_Given1A_Returns1B()
{
var pos = new DiagramPosition(1, 'A');
var next = new DiagramPosition(1, 'B');
Assert.Equal(next, pos.GetNextSubposition());
}
public void CompareTo_Equal_ReturnsZero()
{
var pos = new DiagramPosition(1);
var same = new DiagramPosition(1);
Assert.Equal(0, pos.CompareTo(same));
}
public void GetHashCode_GivenDifferentSubpos_ReturnsDifferent()
{
var pos = new DiagramPosition(1, 'a');
var diff = new DiagramPosition(1, 'b');
Assert.NotEqual(pos.GetHashCode(), diff.GetHashCode());
}
public void ToString_NumberWithSubposition()
{
var pos = new DiagramPosition(3, 'b');
Assert.Equal("3B", pos.ToString());
}
public void ToString_Number()
{
var pos = new DiagramPosition(3);
Assert.Equal("3", pos.ToString());
}
public void From_GivenEmpty_ReturnsNone()
{
var result = DiagramPosition.TryFrom("");
Assert.True(result.IsError);
}
public void From_GivenNumberAndSubposition_ReturnsPosition()
{
var result = DiagramPosition.TryFrom("301a");
Assert.True(result.Contains(new DiagramPosition(301, 'A')));
}
public void From_GivenNumber_ReturnsPosition()
{
var result = DiagramPosition.TryFrom("502");
Assert.True(result.Contains(new DiagramPosition(502)));
}
public void TryFrom_GivenR_Returns0R()
{
var reman = DiagramPosition.TryFrom("R").ValueOrThrow();
Assert.Equal(new DiagramPosition(0, 'R'), reman);
}
