extend test

Author: kjnilsson

test/osiris_log_SUITE.erl

@@ -222,16 +222,28 @@ read_header(Config) ->
     {ok, R0} = osiris_log:init_offset_reader(first,
                                              Conf#{offset_ref => OffRef}),
     {end_of_stream, R1} = osiris_log:read_header(R0),
-    _W1 = osiris_log:write([<<"hi">>, <<"ho">>], W0),
-    atomics:put(OffRef, 1, 1),
-    ?assertMatch({ok, #{chunk_id := 0,
-                        epoch := 1,
-                        type := 0,
-                        num_records := 2,
-                        num_entries := 2,
-                        timestamp := _,
-                        data_size := _,
-                        trailer_size := 0}, _}, osiris_log:read_header(R1)),
+    W1 = osiris_log:write([<<"hi">>, <<"ho">>], W0),
+    _W = osiris_log:write([<<"hum">>], W1),
+    atomics:put(OffRef, 1, 3),
+    {ok, H1, R2} = osiris_log:read_header(R1),
+    ?assertMatch(#{chunk_id := 0,
+                   epoch := 1,
+                   type := 0,
+                   num_records := 2,
+                   num_entries := 2,
+                   timestamp := _,
+                   data_size := _,
+                   trailer_size := 0}, H1),
+    {ok, H2, R3} = osiris_log:read_header(R2),
+    ?assertMatch(#{chunk_id := 2,
+                   epoch := 1,
+                   type := 0,
+                   num_records := 1,
+                   num_entries := 1,
+                   timestamp := _,
+                   data_size := _,
+                   trailer_size := 0}, H2),
+    {end_of_stream, _R} = osiris_log:read_header(R3),
     ok.
 
 write_multi_log(Config) ->