gistfile1.patch

diff --git a/tests/test_write_support.py b/tests/test_write_support.py
index e1c66bf..03fe35b 100644
--- a/tests/test_write_support.py
+++ b/tests/test_write_support.py
@@ -6,15 +6,8 @@ import pcapng.blocks as blocks
 from pcapng import FileScanner, FileWriter
 from pcapng.exceptions import PcapngStrictnessError, PcapngStrictnessWarning
 from pcapng.strictness import Strictness, set_strictness
-
-
-def compare_blocklists(list1, list2):
-    "Compare two lists of blocks. Helper for the below tests."
-
-    assert len(list1) == len(list2)
-
-    for i in range(0, len(list1)):
-        assert list1[i] == list2[i], "block #{} mismatch".format(i)
+from testfixtures import Comparison as C
+from testfixtures import compare
 
 
 def test_write_read_all_blocks():
@@ -125,7 +118,7 @@ def test_write_read_all_blocks():
     fake_file.seek(0)
     in_blocks = list(FileScanner(fake_file))
 
-    compare_blocklists(in_blocks, out_blocks)
+    compare(in_blocks, out_blocks)
 
 
 def test_spb_snap_lengths():
@@ -176,14 +169,35 @@ def test_spb_snap_lengths():
     fake_file.seek(0)
     (i_shb, i_idb, i_blk1, i_blk2, i_blk3) = list(FileScanner(fake_file))
 
-    assert i_blk1.captured_len == 16
-    assert i_blk1.packet_len == 16
-    assert i_blk1.packet_data == data[:16]
+    compare(
+        C(
+            blocks.SimplePacket,
+            captured_len=16,
+            packet_len=16,
+            packet_data=data[:16],
+            strict=False,
+        ),
+        i_blk1,
+    )
 
-    assert i_blk2.captured_len == 32
-    assert i_blk2.packet_len == 32
-    assert i_blk2.packet_data == data[:32]
+    compare(
+        C(
+            blocks.SimplePacket,
+            captured_len=32,
+            packet_len=32,
+            packet_data=data[:32],
+            strict=False,
+        ),
+        i_blk2,
+    )
 
-    assert i_blk3.captured_len == 32
-    assert i_blk3.packet_len == 33
-    assert i_blk3.packet_data == data[:32]
+    compare(
+        C(
+            blocks.SimplePacket,
+            captured_len=32,
+            packet_len=33,
+            packet_data=data[:32],
+            strict=False,
+        ),
+        i_blk3,
+    )