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author | Kostis Sagonas <[email protected]> | 2014-01-12 20:10:49 +0100 |
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committer | Henrik Nord <[email protected]> | 2014-02-24 16:57:30 +0100 |
commit | 7dae40dd0d595776eec7c0407a7849962650e762 (patch) | |
tree | ed38c5c773db2c8d55ea5662ee27cbe71ee65f2f /lib/hipe/test/bs_SUITE_data/bs_bits.erl | |
parent | 4ce83eb728748787f8a2da6155112c6da42a0eba (diff) | |
download | otp-7dae40dd0d595776eec7c0407a7849962650e762.tar.gz otp-7dae40dd0d595776eec7c0407a7849962650e762.tar.bz2 otp-7dae40dd0d595776eec7c0407a7849962650e762.zip |
Add tests for the HiPE compiler (Part 1: binaries and bitstrings)
Create tests for the HiPE native code compiler. This is the first
part of the effort and contains tests that check that the native
code produced by the HiPE compiler for binaries and bitstrings is
OK and behaves similarly to the code produced by the BEAM compiler.
Diffstat (limited to 'lib/hipe/test/bs_SUITE_data/bs_bits.erl')
-rw-r--r-- | lib/hipe/test/bs_SUITE_data/bs_bits.erl | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/lib/hipe/test/bs_SUITE_data/bs_bits.erl b/lib/hipe/test/bs_SUITE_data/bs_bits.erl new file mode 100644 index 0000000000..ef9a6bb137 --- /dev/null +++ b/lib/hipe/test/bs_SUITE_data/bs_bits.erl @@ -0,0 +1,150 @@ +%%% -*- erlang-indent-level: 2 -*- +%%%------------------------------------------------------------------- +%%% File : bs_bits.erl +%%% Author : Per Gustafsson <[email protected]> +%%% Purpose : Tests for bit stream operations including matching, +%%% construction, binary_to_list and list_to_binary +%%% Created : 6 Sep 2006 +%%%------------------------------------------------------------------- +-module(bs_bits). + +-export([test/0]). + +test() -> + <<1:100>> = <<1:100>>, + ok = match(7), + ok = match(9), + ok = match1(15), + ok = match1(31), + ok = horrid_match(), + ok = test_bitstr(), + ok = test_is_bitstr(<<1:1>>,<<8>>), + ok = test_is_binary(<<1:1>>,<<8>>), + ok = test_bitsize(), + ok = asymmetric_tests(), + ok = big_asymmetric_tests(), + ok = bitstr_to_and_from_list(), + ok = big_bitstr_to_and_from_list(), + ok = send_and_receive(), + ok = send_and_receive_alot(), + ok. + +match(N) -> + <<0:N>> = <<0:N>>, + ok. + +match1(N) -> + <<42:N/little>> = <<42:N/little>>, + ok. + +test_is_bitstr(Bitstr, Binary) -> + true = is_bitstring(Bitstr), + true = is_bitstring(Binary), + ok = if is_bitstring(Bitstr) -> ok end, + ok = if is_bitstring(Binary) -> ok end. + +test_is_binary(Bitstr, Binary) -> + false = is_binary(Bitstr), + true = is_binary(Binary), + ok = if is_binary(Bitstr) -> not_ok; true -> ok end, + ok = if is_binary(Binary) -> ok end. + +test_bitsize() -> + 101 = erlang:bit_size(<<1:101>>), + 1001 = erlang:bit_size(<<1:1001>>), + 80 = erlang:bit_size(<<1:80>>), + 800 = erlang:bit_size(<<1:800>>), + Bin = <<0:16#1000000>>, + BigBin = list_to_bitstring([Bin||_ <- lists:seq(1,16#10)]++[<<1:1>>]), + 16#10000001 = bit_size(BigBin), + %% Only run these on computers with lots of memory + %% HugeBin = list_to_bitstring([BigBin||_ <- lists:seq(1,16#10)]++[<<1:1>>]), + %% 16#100000011 = bit_size(HugeBin), + 0 = erlang:bit_size(<<>>), + ok. + +horrid_match() -> + <<1:4,B:24/bitstring>> = <<1:4,42:24/little>>, + <<42:24/little>> = B, + ok. + +test_bitstr() -> + <<1:7,B/bitstring>> = <<1:7,<<1:1,6>>/bitstring>>, + <<1:1,6>> = B, + B = <<1:1,6>>, + ok. + +asymmetric_tests() -> + <<1:12>> = <<0,1:4>>, + <<0,1:4>> = <<1:12>>, + <<1:1,X/bitstring>> = <<128,255,0,0:2>>, + <<1,254,0,0:1>> = X, + X = <<1,254,0,0:1>>, + <<1:1,X1:25/bitstring>> = <<128,255,0,0:2>>, + <<1,254,0,0:1>> = X1, + X1 = <<1,254,0,0:1>>, + ok. + +big_asymmetric_tests() -> + <<1:875,1:12>> = <<1:875,0,1:4>>, + <<1:875,0,1:4>> = <<1:875,1:12>>, + <<1:1,X/bitstring>> = <<128,255,0,0:2,1:875>>, + <<1,254,0,0:1,1:875>> = X, + X = <<1,254,0,0:1,1:875>>, + <<1:1,X1:900/bitstring>> = <<128,255,0,0:2,1:875>>, + <<1,254,0,0:1,1:875>> = X1, + X1 = <<1,254,0,0:1,1:875>>, + ok. + +bitstr_to_and_from_list() -> + <<1:7>> = list_to_bitstring(bitstring_to_list(<<1:7>>)), + <<1,2,3,4,1:1>> = list_to_bitstring(bitstring_to_list(<<1,2,3,4,1:1>>)), + [1,2,3,4,<<1:1>>] = bitstring_to_list(<<1,2,3,4,1:1>>), + <<1:1,1,2,3,4>> = list_to_bitstring([<<1:1>>,1,2,3,4]), + [128,129,1,130,<<0:1>>] = bitstring_to_list(<<1:1,1,2,3,4>>), + ok. + +big_bitstr_to_and_from_list() -> + <<1:800,2,3,4,1:1>> = list_to_bitstring(bitstring_to_list(<<1:800,2,3,4,1:1>>)), + [1,2,3,4|_Rest1] = bitstring_to_list(<<1,2,3,4,1:800,1:1>>), + <<1:801,1,2,3,4>> = list_to_bitstring([<<1:801>>,1,2,3,4]), + ok. + +send_and_receive() -> + Bin = <<1,2:7>>, + Pid = spawn(fun() -> receiver(Bin) end), + Pid ! {self(),<<1:7,8:5,Bin/bitstring>>}, + receive + ok -> + ok + end. + +receiver(Bin) -> + receive + {Pid,<<1:7,8:5,Bin/bitstring>>} -> + Pid ! ok + end. + +send_and_receive_alot() -> + Bin = <<1:1000001>>, + Pid = spawn(fun() -> receiver_alot(Bin) end), + send_alot(100,Bin,Pid). + +send_alot(N,Bin,Pid) when N > 0 -> + Pid ! {self(),<<1:7,8:5,Bin/bitstring>>}, + receive + ok -> + ok + end, + send_alot(N-1,Bin,Pid); +send_alot(0,_Bin,Pid) -> + Pid ! no_more, + ok. + +receiver_alot(Bin) -> + receive + {Pid,<<1:7,8:5,Bin/bitstring>>} -> + Pid ! ok; + no_more -> ok + end, + receiver_alot(Bin). |