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authorHans Bolinder <[email protected]>2017-02-16 16:50:23 +0100
committerHans Bolinder <[email protected]>2017-02-21 13:13:37 +0100
commit9aabcf4151bd2552ac3a6115b5f1224ae14fadd8 (patch)
tree81743be7ca9cdb9593a697e2f9fc27ef357d8867 /lib/stdlib/test/io_SUITE.erl
parentabef8aed9e0c016840a3193a65f1b5212a659da2 (diff)
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stdlib: Improve pretty-printing of terms with maps
As of committing this branch maps:fold/3 calls maps:to_list/1, which means that the time and memory needed for printing maps is not always proportional to the size of the generated deep list of characters.
Diffstat (limited to 'lib/stdlib/test/io_SUITE.erl')
-rw-r--r--lib/stdlib/test/io_SUITE.erl241
1 files changed, 219 insertions, 22 deletions
diff --git a/lib/stdlib/test/io_SUITE.erl b/lib/stdlib/test/io_SUITE.erl
index 7d48cbc97c..6e99619324 100644
--- a/lib/stdlib/test/io_SUITE.erl
+++ b/lib/stdlib/test/io_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2017. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -30,7 +30,7 @@
io_lib_print_binary_depth_one/1, otp_10302/1, otp_10755/1,
otp_10836/1, io_lib_width_too_small/1,
io_with_huge_message_queue/1, format_string/1,
- maps/1, coverage/1]).
+ maps/1, coverage/1, otp_14175/1]).
-export([pretty/2]).
@@ -61,7 +61,7 @@ all() ->
printable_range, bad_printable_range,
io_lib_print_binary_depth_one, otp_10302, otp_10755, otp_10836,
io_lib_width_too_small, io_with_huge_message_queue,
- format_string, maps, coverage].
+ format_string, maps, coverage, otp_14175].
%% Error cases for output.
error_1(Config) when is_list(Config) ->
@@ -415,13 +415,13 @@ otp_6354(Config) when is_list(Config) ->
bt(<<"#rrrrr{\n"
" f1 = 1,\n"
" f2 = #rrrrr{f1 = a,f2 = b,f3 = c},\n"
- " f3 = \n"
+ " f3 =\n"
" #rrrrr{\n"
" f1 = h,f2 = i,\n"
- " f3 = \n"
+ " f3 =\n"
" #rrrrr{\n"
" f1 = aa,\n"
- " f2 = \n"
+ " f2 =\n"
" #rrrrr{\n"
" f1 = #rrrrr{f1 = a,f2 = b,f3 = c},\n"
" f2 = 2,f3 = 3},\n"
@@ -431,17 +431,17 @@ otp_6354(Config) when is_list(Config) ->
2,3},bb}}},
-1)),
bt(<<"#d{aaaaaaaaaaaaaaaaaaaa = 1,\n"
- " bbbbbbbbbbbbbbbbbbbb = \n"
+ " bbbbbbbbbbbbbbbbbbbb =\n"
" #d{aaaaaaaaaaaaaaaaaaaa = a,bbbbbbbbbbbbbbbbbbbb = b,\n"
" cccccccccccccccccccc = c,dddddddddddddddddddd = d,\n"
" eeeeeeeeeeeeeeeeeeee = e},\n"
" cccccccccccccccccccc = 3,\n"
- " dddddddddddddddddddd = \n"
+ " dddddddddddddddddddd =\n"
" #d{aaaaaaaaaaaaaaaaaaaa = h,bbbbbbbbbbbbbbbbbbbb = i,\n"
- " cccccccccccccccccccc = \n"
+ " cccccccccccccccccccc =\n"
" #d{aaaaaaaaaaaaaaaaaaaa = aa,"
"bbbbbbbbbbbbbbbbbbbb = bb,\n"
- " cccccccccccccccccccc = \n"
+ " cccccccccccccccccccc =\n"
" #d{aaaaaaaaaaaaaaaaaaaa = 1,"
"bbbbbbbbbbbbbbbbbbbb = 2,\n"
" cccccccccccccccccccc = 3,"
@@ -534,21 +534,21 @@ otp_6354(Config) when is_list(Config) ->
p({A,{A,{A,{A,{A,{A,{A,
{g,{h,{i,{j,{k,{l,{m,{n,{o,{a}}}}}}}}}}}}}}}}}, 100)),
bt(<<"#c{\n"
- " f1 = \n"
+ " f1 =\n"
" #c{\n"
- " f1 = \n"
+ " f1 =\n"
" #c{\n"
- " f1 = \n"
+ " f1 =\n"
" #c{\n"
- " f1 = \n"
+ " f1 =\n"
" #c{\n"
- " f1 = \n"
+ " f1 =\n"
" #c{\n"
- " f1 = \n"
+ " f1 =\n"
" #c{\n"
- " f1 = \n"
+ " f1 =\n"
" #c{\n"
- " f1 = \n"
+ " f1 =\n"
" #c{\n"
" f1 = #c{f1 = #c{f1 = #c{f1 = a,"
"f2 = b},f2 = b},f2 = b},\n"
@@ -564,13 +564,13 @@ otp_6354(Config) when is_list(Config) ->
p({c,{c,{c,{c,{c,{c,{c,{c,{c,{c,{c,{c,a,b},b},b},b},b},b},
b},b},b},b},b},b}, -1)),
bt(<<"#rrrrr{\n"
- " f1 = \n"
+ " f1 =\n"
" #rrrrr{\n"
- " f1 = \n"
+ " f1 =\n"
" #rrrrr{\n"
- " f1 = \n"
+ " f1 =\n"
" #rrrrr{\n"
- " f1 = \n"
+ " f1 =\n"
" {rrrrr,{rrrrr,a,#rrrrr{f1 = {rrrrr,1,2},f2 = a,"
"f3 = b}},b},\n"
" f2 = {rrrrr,c,d},\n"
@@ -2106,3 +2106,200 @@ coverage(_Config) ->
io:format("~s\n", [S2]),
ok.
+
+otp_14175(_Config) ->
+ "..." = p(#{}, 0),
+ "#{}" = p(#{}, 1),
+ "#{...}" = p(#{a => 1}, 1),
+ "#{#{} => a}" = p(#{#{} => a}, 2),
+ "#{a => 1,...}" = p(#{a => 1, b => 2}, 2),
+ "#{a => 1,b => 2}" = p(#{a => 1, b => 2}, -1),
+
+ M = #{kaaaaaaaaaaaaaaaaaaa => v1,kbbbbbbbbbbbbbbbbbbb => v2,
+ kccccccccccccccccccc => v3,kddddddddddddddddddd => v4,
+ keeeeeeeeeeeeeeeeeee => v5},
+ "#{...}" = p(M, 1),
+ mt("#{kaaaaaaaaaaaaaaaaaaaa => v1,...}", p(M, 2)),
+ mt("#{kaaaaaaaaaaaaaaaaaaaa => 1,kbbbbbbbbbbbbbbbbbbbb => 2,...}",
+ p(M, 3)),
+
+ mt("#{kaaaaaaaaaaaaaaaaaaa => v1,kbbbbbbbbbbbbbbbbbbb => v2,\n"
+ " kccccccccccccccccccc => v3,...}", p(M, 4)),
+
+ mt("#{kaaaaaaaaaaaaaaaaaaa => v1,kbbbbbbbbbbbbbbbbbbb => v2,\n"
+ " kccccccccccccccccccc => v3,kddddddddddddddddddd => v4,...}",
+ p(M, 5)),
+
+ mt("#{kaaaaaaaaaaaaaaaaaaa => v1,kbbbbbbbbbbbbbbbbbbb => v2,\n"
+ " kccccccccccccccccccc => v3,kddddddddddddddddddd => v4,\n"
+ " keeeeeeeeeeeeeeeeeee => v5}", p(M, 6)),
+
+ weak("#{aaaaaaaaaaaaaaaaaaa => 1,bbbbbbbbbbbbbbbbbbbb => 2,\n"
+ " cccccccccccccccccccc => {3},\n"
+ " dddddddddddddddddddd => 4,eeeeeeeeeeeeeeeeeeee => 5}",
+ p(#{aaaaaaaaaaaaaaaaaaa => 1,bbbbbbbbbbbbbbbbbbbb => 2,
+ cccccccccccccccccccc => {3},
+ dddddddddddddddddddd => 4,eeeeeeeeeeeeeeeeeeee => 5}, -1)),
+
+ M2 = #{dddddddddddddddddddd => {1}, {aaaaaaaaaaaaaaaaaaaa} => 2,
+ {bbbbbbbbbbbbbbbbbbbb} => 3,{cccccccccccccccccccc} => 4,
+ {eeeeeeeeeeeeeeeeeeee} => 5},
+ "#{...}" = p(M2, 1),
+ weak("#{dddddddddddddddddddd => {...},...}", p(M2, 2)),
+ weak("#{dddddddddddddddddddd => {1},{...} => 2,...}", p(M2, 3)),
+
+ weak("#{dddddddddddddddddddd => {1},\n"
+ " {aaaaaaaaaaaaaaaaaaaa} => 2,\n"
+ " {...} => 3,...}", p(M2, 4)),
+
+ weak("#{dddddddddddddddddddd => {1},\n"
+ " {aaaaaaaaaaaaaaaaaaaa} => 2,\n"
+ " {bbbbbbbbbbbbbbbbbbbb} => 3,\n"
+ " {...} => 4,...}", p(M2, 5)),
+
+ weak("#{dddddddddddddddddddd => {1},\n"
+ " {aaaaaaaaaaaaaaaaaaaa} => 2,\n"
+ " {bbbbbbbbbbbbbbbbbbbb} => 3,\n"
+ " {cccccccccccccccccccc} => 4,\n"
+ " {...} => 5}", p(M2, 6)),
+
+ weak("#{dddddddddddddddddddd => {1},\n"
+ " {aaaaaaaaaaaaaaaaaaaa} => 2,\n"
+ " {bbbbbbbbbbbbbbbbbbbb} => 3,\n"
+ " {cccccccccccccccccccc} => 4,\n"
+ " {eeeeeeeeeeeeeeeeeeee} => 5}", p(M2, 7)),
+
+ M3 = #{kaaaaaaaaaaaaaaaaaaa => vuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu,
+ kbbbbbbbbbbbbbbbbbbb => vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv,
+ kccccccccccccccccccc => vxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,
+ kddddddddddddddddddd => vyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy,
+ keeeeeeeeeeeeeeeeeee => vzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz},
+
+ mt("#{aaaaaaaaaaaaaaaaaaaa =>\n"
+ " uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu,\n"
+ " bbbbbbbbbbbbbbbbbbbb =>\n"
+ " vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv,\n"
+ " cccccccccccccccccccc =>\n"
+ " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,\n"
+ " dddddddddddddddddddd =>\n"
+ " yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy,\n"
+ " eeeeeeeeeeeeeeeeeeee =>\n"
+ " zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz}", p(M3, -1)),
+
+ R4 = {c,{c,{c,{c,{c,{c,{c,{c,{c,{c,{c,{c,a,b},b},b},b},b},b},
+ b},b},b},b},b},b},
+ M4 = #{aaaaaaaaaaaaaaaaaaaa => R4,
+ bbbbbbbbbbbbbbbbbbbb => R4,
+ cccccccccccccccccccc => R4,
+ dddddddddddddddddddd => R4,
+ eeeeeeeeeeeeeeeeeeee => R4},
+
+ weak("#{aaaaaaaaaaaaaaaaaaaa =>\n"
+ " #c{f1 = #c{f1 = #c{...},f2 = b},f2 = b},\n"
+ " bbbbbbbbbbbbbbbbbbbb => #c{f1 = #c{f1 = {...},...},f2 = b},\n"
+ " cccccccccccccccccccc => #c{f1 = #c{...},f2 = b},\n"
+ " dddddddddddddddddddd => #c{f1 = {...},...},\n"
+ " eeeeeeeeeeeeeeeeeeee => #c{...}}", p(M4, 7)),
+
+ M5 = #{aaaaaaaaaaaaaaaaaaaa => R4},
+ mt("#{aaaaaaaaaaaaaaaaaaaa =>\n"
+ " #c{\n"
+ " f1 =\n"
+ " #c{\n"
+ " f1 =\n"
+ " #c{\n"
+ " f1 =\n"
+ " #c{\n"
+ " f1 =\n"
+ " #c{\n"
+ " f1 =\n"
+ " #c{\n"
+ " f1 =\n"
+ " #c{\n"
+ " f1 =\n"
+ " #c{\n"
+ " f1 =\n"
+ " #c{\n"
+ " f1 = #c{f1 = #c{f1 = #c{f1 = a,f2 = b},f2 = b},"
+ "f2 = b},\n"
+ " f2 = b},\n"
+ " f2 = b},\n"
+ " f2 = b},\n"
+ " f2 = b},\n"
+ " f2 = b},\n"
+ " f2 = b},\n"
+ " f2 = b},\n"
+ " f2 = b},\n"
+ " f2 = b}}", p(M5, -1)),
+ ok.
+
+%% Just check number of newlines and dots ('...').
+-define(WEAK, true).
+
+-ifdef(WEAK).
+
+weak(S, R) ->
+ (nl(S) =:= nl(R) andalso
+ dots(S) =:= dots(S)).
+
+nl(S) ->
+ [C || C <- S, C =:= $\n].
+
+dots(S) ->
+ [C || C <- S, C =:= $\.].
+
+-else. % WEAK
+
+weak(S, R) ->
+ mt(S, R).
+
+-endif. % WEAK
+
+%% If EXACT is defined: mt() matches strings exactly.
+%%
+%% if EXACT is not defined: do not match the strings exactly, but
+%% compare them assuming that all map keys and all map values are
+%% equal (by assuming all map keys and all map values have the same
+%% length and begin with $k and $v respectively).
+
+%-define(EXACT, true).
+
+-ifdef(EXACT).
+
+mt(S, R) ->
+ S =:= R.
+
+-else. % EXACT
+
+mt(S, R) ->
+ anon(S) =:= anon(R).
+
+anon(S) ->
+ {ok, Ts0, _} = erl_scan:string(S, 1, [text]),
+ Ts = anon1(Ts0),
+ text(Ts).
+
+anon1([]) -> [];
+anon1([{atom,Anno,Atom}=T|Ts]) ->
+ case erl_anno:text(Anno) of
+ "k" ++ _ ->
+ NewAnno = erl_anno:set_text("key", Anno),
+ [{atom,NewAnno,Atom}|anon1(Ts)];
+ "v" ++ _ ->
+ NewAnno = erl_anno:set_text("val", Anno),
+ [{atom,NewAnno,Atom}|anon1(Ts)];
+ _ ->
+ [T|anon1(Ts)]
+ end;
+anon1([T|Ts]) ->
+ [T|anon1(Ts)].
+
+text(Ts) ->
+ lists:append(text1(Ts)).
+
+text1([]) -> [];
+text1([T|Ts]) ->
+ Anno = element(2, T),
+ [erl_anno:text(Anno) | text1(Ts)].
+
+-endif. % EXACT