Unit tests for annotate.
| Function | dataToPixels | Given a data-point value z along the x (or y) axis, returns the number of pixels from the left (or bottom) of the subplot. |
| Class | MockBBox | A mock Matplotlib bounding box for a MockAnnotation
or window extents of a MockAxes. |
| Class | MockFigure | A stand-in for the Matplotlib Figure object. I have a
10-pixel border around my single fake subplot, resulting in dimensions of
520x520 pixels. |
| Class | MockAxes | A stand-in for the Matplotlib Axes object. |
| Class | MockAnnotation | A mock Matplotlib Annotation object pointing to a
data-point location of x, y, centered at an offet of
dx, dy pixels. |
| Class | Test_RectangleRegion | Unit tests for RectangleRegion. |
| Class | Test_PositionEvaluator | Unit tests for PositionEvaluator. |