Remove TestGribMessage (SciTools#3672)

lib/iris/tests/__init__.py

@@ -1121,116 +1121,6 @@ class GraphicsTest_nometa(GraphicsTestMixin, IrisTest_nometa):
     pass
 
 
-class TestGribMessage(IrisTest):
-    def assertGribMessageContents(self, filename, contents):
-        """
-        Evaluate whether all messages in a GRIB2 file contain the provided
-        contents.
-
-        * filename (string)
-            The path on disk of an existing GRIB file
-
-        * contents
-            An iterable of GRIB message keys and expected values.
-
-        """
-        messages = GribMessage.messages_from_filename(filename)
-        for message in messages:
-            for element in contents:
-                section, key, val = element
-                self.assertEqual(message.sections[section][key], val)
-
-    def assertGribMessageDifference(
-        self, filename1, filename2, diffs, skip_keys=(), skip_sections=()
-    ):
-        """
-        Evaluate that the two messages only differ in the ways specified.
-
-        * filename[0|1] (string)
-            The path on disk of existing GRIB files
-
-        * diffs
-            An dictionary of GRIB message keys and expected diff values:
-            {key: (m1val, m2val),...} .
-
-        * skip_keys
-            An iterable of key names to ignore during comparison.
-
-        * skip_sections
-            An iterable of section numbers to ignore during comparison.
-
-        """
-        messages1 = list(GribMessage.messages_from_filename(filename1))
-        messages2 = list(GribMessage.messages_from_filename(filename2))
-        self.assertEqual(len(messages1), len(messages2))
-        for m1, m2 in zip(messages1, messages2):
-            m1_sect = set(m1.sections.keys())
-            m2_sect = set(m2.sections.keys())
-
-            for missing_section in m1_sect ^ m2_sect:
-                what = (
-                    "introduced" if missing_section in m1_sect else "removed"
-                )
-                # Assert that an introduced section is in the diffs.
-                self.assertIn(
-                    missing_section,
-                    skip_sections,
-                    msg="Section {} {}".format(missing_section, what),
-                )
-
-            for section in m1_sect & m2_sect:
-                # For each section, check that the differences are
-                # known diffs.
-                m1_keys = set(m1.sections[section]._keys)
-                m2_keys = set(m2.sections[section]._keys)
-
-                difference = m1_keys ^ m2_keys
-                unexpected_differences = difference - set(skip_keys)
-                if unexpected_differences:
-                    self.fail(
-                        "There were keys in section {} which \n"
-                        "weren't in both messages and which weren't "
-                        "skipped.\n{}"
-                        "".format(section, ", ".join(unexpected_differences))
-                    )
-
-                keys_to_compare = m1_keys & m2_keys - set(skip_keys)
-
-                for key in keys_to_compare:
-                    m1_value = m1.sections[section][key]
-                    m2_value = m2.sections[section][key]
-                    msg = "{} {} != {}"
-                    if key not in diffs:
-                        # We have a key which we expect to be the same for
-                        # both messages.
-                        if isinstance(m1_value, np.ndarray):
-                            # A large tolerance appears to be required for
-                            # gribapi 1.12, but not for 1.14.
-                            self.assertArrayAlmostEqual(
-                                m1_value, m2_value, decimal=2
-                            )
-                        else:
-                            self.assertEqual(
-                                m1_value,
-                                m2_value,
-                                msg=msg.format(key, m1_value, m2_value),
-                            )
-                    else:
-                        # We have a key which we expect to be different
-                        # for each message.
-                        self.assertEqual(
-                            m1_value,
-                            diffs[key][0],
-                            msg=msg.format(key, m1_value, diffs[key][0]),
-                        )
-
-                        self.assertEqual(
-                            m2_value,
-                            diffs[key][1],
-                            msg=msg.format(key, m2_value, diffs[key][1]),
-                        )
-
-
 def skip_data(fn):
     """
     Decorator to choose whether to run tests, based on the availability of