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authorBjörn Gustavsson <[email protected]>2010-04-28 08:42:34 +0200
committerRaimo Niskanen <[email protected]>2010-05-20 12:20:50 +0200
commitd60ee77c2b152b89e057ffebe0694c21700c82ce (patch)
tree669c4d1732ebaac9f09e954372690487f927cdd5
parent45314b86cf1923dd707fe14bd431c919607bb0a9 (diff)
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beam_bool: Cover handling of bs_context_to_binary in initialized_regs/2
Add a test case (derived from dets_v9:scan_skip/8), to cover the clause in initialized_regs/2 that handles bs_context_to_binary.
-rw-r--r--lib/compiler/test/bs_match_SUITE.erl24
1 files changed, 22 insertions, 2 deletions
diff --git a/lib/compiler/test/bs_match_SUITE.erl b/lib/compiler/test/bs_match_SUITE.erl
index 75b6f801e7..caaa587006 100644
--- a/lib/compiler/test/bs_match_SUITE.erl
+++ b/lib/compiler/test/bs_match_SUITE.erl
@@ -30,7 +30,8 @@
multiple_uses/1,zero_label/1,followed_by_catch/1,
matching_meets_construction/1,simon/1,matching_and_andalso/1,
otp_7188/1,otp_7233/1,otp_7240/1,otp_7498/1,
- match_string/1,zero_width/1,bad_size/1,haystack/1]).
+ match_string/1,zero_width/1,bad_size/1,haystack/1,
+ cover_beam_bool/1]).
-export([coverage_id/1]).
@@ -45,7 +46,7 @@ all(suite) ->
wfbm,degenerated_match,bs_sum,coverage,multiple_uses,zero_label,
followed_by_catch,matching_meets_construction,simon,matching_and_andalso,
otp_7188,otp_7233,otp_7240,otp_7498,match_string,zero_width,bad_size,
- haystack].
+ haystack,cover_beam_bool].
init_per_testcase(Case, Config) when is_atom(Case), is_list(Config) ->
Dog = test_server:timetrap(?t:minutes(1)),
@@ -985,6 +986,25 @@ fc(_, Args, {'EXIT',{{case_clause,ActualArgs},_}})
when ?MODULE =:= bs_match_inline_SUITE ->
Args = tuple_to_list(ActualArgs).
+%% Cover the clause handling bs_context to binary in
+%% beam_block:initialized_regs/2.
+cover_beam_bool(Config) when is_list(Config) ->
+ ?line ok = do_cover_beam_bool(<<>>, 3),
+ ?line <<19>> = do_cover_beam_bool(<<19>>, 2),
+ ?line <<42>> = do_cover_beam_bool(<<42>>, 1),
+ ?line <<17>> = do_cover_beam_bool(<<13,17>>, 0),
+ ok.
+
+do_cover_beam_bool(Bin, X) when X > 0 ->
+ if
+ X =:= 1; X =:= 2 ->
+ Bin;
+ true ->
+ ok
+ end;
+do_cover_beam_bool(<<_,Bin/binary>>, X) ->
+ do_cover_beam_bool(Bin, X+1).
+
check(F, R) ->
R = F().