TEST: Add setup/teardown to try to catch warnings properly [WIP]

Author: effigies

nibabel/tests/test_nifti1.py

@@ -80,6 +80,18 @@ class TestNifti1PairHeader(tana.TestAnalyzeHeader, tspm.HeaderScalingMixin):
             np.longcomplex))
     tana.add_intp(supported_np_types)
 
+    def setUp(self):
+        # Add warning filters for duration of test case
+        self._wctx = warnings.catch_warnings()
+        self._wctx.__enter__()
+        warnings.filterwarnings('ignore', 'get_zooms', FutureWarning)
+        warnings.filterwarnings('ignore', 'Unknown (spatial|time) units',
+                                UserWarning)
+
+    def tearDown(self):
+        # Restore warning filters
+        self._wctx.__exit__()
+
     def test_empty(self):
         tana.TestAnalyzeHeader.test_empty(self)
         hdr = self.header_class()
@@ -762,6 +774,18 @@ class TestNifti1Pair(tana.TestAnalyzeImage, tspm.ImageScalingMixin):
     image_class = Nifti1Pair
     supported_np_types = TestNifti1PairHeader.supported_np_types
 
+    def setUp(self):
+        # Add warning filters for duration of test case
+        self._wctx = warnings.catch_warnings()
+        self._wctx.__enter__()
+        warnings.filterwarnings('ignore', 'get_zooms', FutureWarning)
+        warnings.filterwarnings('ignore', 'Unknown (spatial|time) units',
+                                UserWarning)
+
+    def tearDown(self):
+        # Restore warning filters
+        self._wctx.__exit__()
+
     def test_none_qsform(self):
         # Check that affine gets set to q/sform if header is None
         img_klass = self.image_class