Start adding pose warp conversions

unsupervised/warp_tests.py

@@ -0,0 +1,26 @@
+import unittest
+
+import numpy as np
+import tensorflow as tf
+
+import warp
+
+
+class MyTestCase(unittest.TestCase):
+    def test_euler_to_rotation_matrix(self):
+        # quarter rotation in every
+        x, y, z = tf.expand_dims(tf.expand_dims(tf.constant(np.pi / 2), 0), 0)
+
+        # TODO: Construct expected final rotation matrix, just 3x3 using numpy, so that we can do an
+        #   elementwise comparison later. Probably also want to check the
+
+        rotation_matrices = warp.euler_to_rotation_matrix(x, y, z)
+
+        self.assertEqual(rotation_matrices.shape, [1, 3, 3])
+        rot_mat = rotation_matrices[0]
+
+        # TODO: Element-wise checks...
+
+
+if __name__ == '__main__':
+    unittest.main()