diff --git a/hdf5plugin/test.py b/hdf5plugin/test.py
index 4c6fbe97..b4fbb685 100644
--- a/hdf5plugin/test.py
+++ b/hdf5plugin/test.py
@@ -1,7 +1,7 @@
 # coding: utf-8
 # /*##########################################################################
 #
-# Copyright (c) 2019 European Synchrotron Radiation Facility
+# Copyright (c) 2019-2020 European Synchrotron Radiation Facility
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -72,8 +72,11 @@ def _test(self, filter_name, dtype=numpy.int32, **options):
         plist = f['data'].id.get_create_plist()
         filters = [plist.get_filter(i) for i in range(plist.get_nfilters())]
         f.close()
-
-        self.assertTrue(numpy.array_equal(saved, data))
+        
+        if filter_name in ['zfp']:
+            self.assertTrue(numpy.allclose(saved, data))
+        else:
+            self.assertTrue(numpy.array_equal(saved, data))
         self.assertEqual(saved.dtype, data.dtype)
 
         self.assertEqual(len(filters), 1)
@@ -128,7 +131,8 @@ def testFciDecomp(self):
 
     def testZfp(self):
         """Write/read test with zfp filter plugin"""
-        self._test('zfp')
+        self._test('zfp', dtype=numpy.float32)
+        self._test('zfp', dtype=numpy.float64)
 
 def suite():
     test_suite = unittest.TestSuite()