diff --git a/tests/test_mime.py b/tests/test_mime.py
index 440d6a1..ef35722 100644
--- a/tests/test_mime.py
+++ b/tests/test_mime.py
@@ -24,7 +24,9 @@ class TestMime (unittest.TestCase):
     def mime_test (self, filename, mime, encoding):
         """Test that file has given mime and encoding."""
         archive = os.path.join(datadir, filename)
-        self.assertEqual(patoolib.util.guess_mime(filename), (mime, encoding))
+        res = patoolib.util.guess_mime(archive)
+        fail_msg = "MIME type for archive `%s' should be (%s, %s), but was %s" % (filename, mime, encoding, res)
+        self.assertEqual(res, (mime, encoding), fail_msg)
 
     @needs_program('file')
     def test_mime (self):
@@ -42,10 +44,11 @@ class TestMime (unittest.TestCase):
         self.mime_test("t.deb.foo", "application/x-debian-package", None)
         self.mime_test("t.gz", "application/x-gzip", None)
         self.mime_test("t.gz.foo", "application/x-gzip", None)
-        self.mime_test("t.jar", "application/java-archive", None)
-        self.mime_test("t.jar.foo", "application/java-archive", None)
+        self.mime_test("t.jar", "application/zip", None)
+        self.mime_test("t.jar.foo", "application/zip", None)
         self.mime_test("t.lzma", "application/x-lzma", None)
-        self.mime_test("t.lzma.foo", "application/x-lzma", None)
+        # file(1) does not recognize .lzma files
+        #self.mime_test("t.lzma.foo", "application/x-lzma", None)
         self.mime_test("t.lzo", "application/x-lzop", None)
         self.mime_test("t.lzo.foo", "application/x-lzop", None)
         self.mime_test("t.rar", "application/x-rar", None)
@@ -55,21 +58,22 @@ class TestMime (unittest.TestCase):
         self.mime_test("t.tar", "application/x-tar", None)
         self.mime_test("t.tar.foo", "application/x-tar", None)
         self.mime_test("t.tar.bz2", "application/x-tar", "bzip2")
-        self.mime_test("t.tar.bz2.foo", "application/x-bzip2", None)
+        self.mime_test("t.tar.bz2.foo", "application/x-tar", "bzip2")
         self.mime_test("t.tar.gz", "application/x-tar", "gzip")
-        self.mime_test("t.tar.gz.foo", "application/x-gzip", None)
+        self.mime_test("t.tar.gz.foo", "application/x-tar", "gzip")
         self.mime_test("t.tar.lzma", "application/x-tar", "lzma")
-        self.mime_test("t.tar.lzma.foo", "application/x-lzma", None)
+        # file(1) does not recognize .lzma files
+        #self.mime_test("t.tar.lzma.foo", "application/x-tar", "lzma")
         self.mime_test("t.tar.xz", "application/x-tar", "xz")
-        self.mime_test("t.tar.xz.foo", "application/x-xz", None)
+        self.mime_test("t.tar.xz.foo", "application/x-tar", "xz")
         self.mime_test("t.tar.Z", "application/x-tar", "compress")
-        self.mime_test("t.tar.Z.foo", "application/x-compress", None)
+        self.mime_test("t.tar.Z.foo", "application/x-tar", "compress")
         self.mime_test("t.taz", "application/x-tar", "compress")
-        self.mime_test("t.taz.foo", "application/x-compress", None)
+        self.mime_test("t.taz.foo", "application/x-tar", "compress")
         self.mime_test("t.tbz2", "application/x-tar", "bzip2")
-        self.mime_test("t.tbz2.foo", "application/x-bzip2", None)
+        self.mime_test("t.tbz2.foo", "application/x-tar", "bzip2")
         self.mime_test("t.tgz", "application/x-tar", "gzip")
-        self.mime_test("t.tgz.foo", "application/x-gzip", None)
+        self.mime_test("t.tgz.foo", "application/x-tar", "gzip")
         self.mime_test("t.txt.gz", "application/x-gzip", None)
         self.mime_test("t.txt.gz.foo", "application/x-gzip", None)
         self.mime_test("t.xz", "application/x-xz", None)