finish segy test

dascore/io/segy/utils.py

@@ -38,7 +38,9 @@ def twos_comp(bytes_):
 
 def _get_segy_version(fp):
     """
-    Return True if file pointer contains segy formatted data.
+    Determine if file handle contains segy data.
+
+    Returns (segy, version) if so else False.
 
     Based on ObsPy's implementation writen by Lion Krischer.
     https://github.com/obspy/obspy/blob/master/obspy/io/segy/core.py

tests/test_io/test_segy/test_segy.py

@@ -64,6 +64,8 @@ def test_can_get_format(self, channel_patch_path):
     def test_channel_patch_round_trip(self, channel_patch_path, channel_patch):
         """The channel patch should round trip."""
         patch1 = channel_patch
-        patch2 = dc.spool(channel_patch_path)[0]
-
+        patch2 = dc.spool(channel_patch_path)[0].transpose(*patch1.dims)
+        # We really don't have a way to transport attributes yet, so we
+        # just check that data and coords are equal.
         assert np.allclose(patch1.data, patch2.data)
+        assert patch1.coords == patch2.coords