First commit with entire first rendition of the project

tests/test_orientation.py

@@ -0,0 +1,50 @@
+import os
+
+from PIL import Image as PILImage
+
+from spectra.display import InkyDisplay
+
+
+class TestInkyDisplayOrientation:
+    def test_effective_dimensions_landscape(self):
+        d = InkyDisplay(simulate=True, width=800, height=480, orientation=0)
+        assert d.effective_width == 800
+        assert d.effective_height == 480
+
+    def test_effective_dimensions_portrait(self):
+        d = InkyDisplay(simulate=True, width=800, height=480, orientation=90)
+        assert d.effective_width == 480
+        assert d.effective_height == 800
+
+    def test_output_size_0(self):
+        d = InkyDisplay(simulate=True, width=800, height=480, orientation=0)
+        r = d.process_image(PILImage.new("RGB", (1600, 1200)))
+        assert r.size == (800, 480)
+
+    def test_output_size_90(self):
+        d = InkyDisplay(simulate=True, width=800, height=480, orientation=90)
+        r = d.process_image(PILImage.new("RGB", (1600, 1200)))
+        assert r.size == (800, 480)
+
+    def test_output_size_180(self):
+        d = InkyDisplay(simulate=True, width=800, height=480, orientation=180)
+        r = d.process_image(PILImage.new("RGB", (1600, 1200)))
+        assert r.size == (800, 480)
+
+    def test_output_size_270(self):
+        d = InkyDisplay(simulate=True, width=800, height=480, orientation=270)
+        r = d.process_image(PILImage.new("RGB", (1600, 1200)))
+        assert r.size == (800, 480)
+
+    def test_string_orientation_coerced(self):
+        d = InkyDisplay(simulate=True, width=800, height=480, orientation="90")
+        assert d.orientation == 90
+
+    def test_none_orientation_defaults_to_zero(self):
+        d = InkyDisplay(simulate=True, width=800, height=480, orientation=None)
+        assert d.orientation == 0
+
+    def test_show_writes_file(self):
+        d = InkyDisplay(simulate=True, width=800, height=480, orientation=90)
+        d.show(PILImage.new("RGB", (1600, 1200)))
+        assert os.path.exists("/tmp/spectra_last.png")