Move doc-test into proper py.test test

Doc test started failing because numpy changed to string representation of the
arrays. Making a more robust test that checks roughly the same thing.

datacube/utils/geometry.py

@@ -690,18 +690,6 @@ class GeoBox(object):
     Defines the location and resolution of a rectangular grid of data,
     including it's :py:class:`CRS`.
 
-    >>> from affine import Affine
-    >>> t = GeoBox(4000, 4000, Affine(0.00025, 0.0, 151.0, 0.0, -0.00025, -29.0), CRS('EPSG:4326'))
-    >>> t.coordinates['latitude'].values
-    array([-29.000125, -29.000375, -29.000625, ..., -29.999375, -29.999625,
-           -29.999875])
-    >>> t.coordinates['longitude'].values
-    array([ 151.000125,  151.000375,  151.000625, ...,  151.999375,
-            151.999625,  151.999875])
-    >>> t.resolution
-    (-0.00025, 0.00025)
-
-
     :param geometry.CRS crs: Coordinate Reference System
     :param affine.Affine affine: Affine transformation defining the location of the geobox
     """

tests/test_geometry.py

@@ -1,6 +1,7 @@
 
 from __future__ import absolute_import
 
+import numpy as np
 import osgeo
 import pytest
 try:
@@ -18,6 +19,26 @@ def test_pickleable():
     assert poly == unpickled
 
 
+def test_geobox_simple():
+    from affine import Affine
+    t = geometry.GeoBox(4000, 4000,
+                        Affine(0.00025, 0.0, 151.0, 0.0, -0.00025, -29.0),
+                        geometry.CRS('EPSG:4326'))
+
+    expect_lon = np.asarray([151.000125,  151.000375,  151.000625,  151.000875,  151.001125,
+                             151.001375,  151.001625,  151.001875,  151.002125,  151.002375])
+
+    expect_lat = np.asarray([-29.000125, -29.000375, -29.000625, -29.000875, -29.001125,
+                             -29.001375, -29.001625, -29.001875, -29.002125, -29.002375])
+    expect_resolution = np.asarray([-0.00025, 0.00025])
+
+    assert (np.abs(np.r_[t.resolution] - expect_resolution) < 1e-6).all()
+    assert t.coordinates['latitude'].values.shape == (4000,)
+    assert t.coordinates['longitude'].values.shape == (4000,)
+    assert (np.abs(t.coords['latitude'].values[:10] - expect_lat) < 1e-6).all()
+    assert (np.abs(t.coords['longitude'].values[:10] - expect_lon) < 1e-6).all()
+
+
 def test_props():
     box1 = geometry.box(10, 10, 30, 30, crs=geometry.CRS('EPSG:4326'))
     assert box1