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authorBjörn Gustavsson <[email protected]>2010-09-22 14:26:51 +0200
committerBjörn Gustavsson <[email protected]>2010-09-22 14:48:09 +0200
commitd1d3de0e7e929e2f6f7bb47bbc3d67434f97926d (patch)
tree45c144ee3196547b353765348b10773d4779a03b
parentdc7d2319691fa599717c066460cce53ce97b6b18 (diff)
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Add tests for tail segments in binary generators
-rw-r--r--lib/compiler/test/bs_bincomp_SUITE.erl38
1 files changed, 35 insertions, 3 deletions
diff --git a/lib/compiler/test/bs_bincomp_SUITE.erl b/lib/compiler/test/bs_bincomp_SUITE.erl
index a64a5d590b..74f69893af 100644
--- a/lib/compiler/test/bs_bincomp_SUITE.erl
+++ b/lib/compiler/test/bs_bincomp_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2006-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2010. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -24,7 +24,7 @@
-export([all/1,
byte_aligned/1,bit_aligned/1,extended_byte_aligned/1,
extended_bit_aligned/1,mixed/1,filters/1,trim_coverage/1,
- nomatch/1,sizes/1]).
+ nomatch/1,sizes/1,tail/1]).
-include("test_server.hrl").
@@ -32,7 +32,7 @@ all(suite) ->
test_lib:recompile(?MODULE),
[byte_aligned,bit_aligned,extended_byte_aligned,
extended_bit_aligned,mixed,filters,trim_coverage,
- nomatch,sizes].
+ nomatch,sizes,tail].
byte_aligned(Config) when is_list(Config) ->
@@ -270,6 +270,38 @@ sizes(Config) when is_list(Config) ->
?line cs_end(),
ok.
+tail(Config) when is_list(Config) ->
+ ?line [] = tail_1(<<0:7>>),
+ ?line [0] = tail_1(<<0>>),
+ ?line [0] = tail_1(<<0:12>>),
+ ?line [0,0] = tail_1(<<0:20>>),
+
+ ?line [] = tail_2(<<0:7>>),
+ ?line [42] = tail_2(<<0>>),
+ ?line [] = tail_2(<<0:12>>),
+ ?line [42,42] = tail_2(<<0,1>>),
+
+ ?line <<>> = tail_3(<<0:7>>),
+ ?line <<42>> = tail_3(<<0>>),
+ ?line <<42>> = tail_3(<<0:12>>),
+ ?line <<42,42>> = tail_3(<<0:20>>),
+
+ ?line [] = tail_4(<<0:15>>),
+ ?line [7] = tail_4(<<7,8>>),
+ ?line [9] = tail_4(<<9,17:12>>),
+ ok.
+
+tail_1(Bits) ->
+ [X || <<X:8/integer, _/bits>> <= Bits].
+
+tail_2(Bits) ->
+ [42 || <<_:8/integer, _/bytes>> <= Bits].
+
+tail_3(Bits) ->
+ << <<42>> || <<_:8/integer, _/bits>> <= Bits >>.
+
+tail_4(Bits) ->
+ [X || <<X:8/integer, Tail/bits>> <= Bits, bit_size(Tail) >= 8].
cs_init() ->