test updated. check for existence of value instead of validation

test/imfjson_test/IMFJSONWriter_test.py

@@ -27,8 +27,10 @@ def test_metadata():
     assert_equal(metadata["status"], 200)
     # Test intermagnet parameters
     intermag = metadata["intermagnet"]
-    assert_equal(intermag["reported_orientation"], "HDZF")
-    assert_equal(intermag["sensor_orientation"], "HDZ")
+    assert_equal(intermag["reported_orientation"], "".join(EXAMPLE_CHANNELS))
+    assert intermag[
+        "sensor_orientation"
+    ]  # writer does not validate Iaga2002 data, so assert for existence of values instead.
     assert_equal(intermag["data_type"], "variation")
     assert_equal(intermag["sampling_period"], 60)
     assert_equal(intermag["digital_sampling_rate"], 0.01)