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| author | Björn-Egil Dahlberg <[email protected]> | 2015-04-09 13:43:46 +0200 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2015-04-09 13:43:46 +0200 |
| commit | 8da670fa275d77119e32bf642edb342b5dd64dc9 (patch) | |
| tree | a306b1f82546888f488026c2f6e821bf562795ca /erts/emulator/test/map_SUITE.erl | |
| parent | 26c94c98a598a312b7912b1ef7ae3a7b01abcbf1 (diff) | |
| download | otp-8da670fa275d77119e32bf642edb342b5dd64dc9.tar.gz otp-8da670fa275d77119e32bf642edb342b5dd64dc9.tar.bz2 otp-8da670fa275d77119e32bf642edb342b5dd64dc9.zip | |
erts: Test maps:from_list/1 shrinking
Repeated keys will shrink map to a flatmap if the number of pairs drops below the limit.
Diffstat (limited to 'erts/emulator/test/map_SUITE.erl')
| -rw-r--r-- | erts/emulator/test/map_SUITE.erl | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/erts/emulator/test/map_SUITE.erl b/erts/emulator/test/map_SUITE.erl index dc6286fdb6..fbe6ea2a38 100644 --- a/erts/emulator/test/map_SUITE.erl +++ b/erts/emulator/test/map_SUITE.erl @@ -2252,6 +2252,13 @@ t_bif_map_from_list(Config) when is_list(Config) -> maps:from_list([ {{hi,3},v3}, {"hi",v0},{3,v1}, {<<"hi">>,v4}, {hi,v2}, {<<"hi">>,v6}, {{hi,3},v10},{"hi",v11}, {hi,v9}, {3,v8}]), + %% repeated keys (large -> small) + Ps1 = [{a,I}|| I <- lists:seq(1,32)], + Ps2 = [{a,I}|| I <- lists:seq(33,64)], + + M = maps:from_list(Ps1 ++ [{b,1},{c,1}] ++ Ps2), + #{ a := 64, b := 1, c := 1 } = M, + %% error cases {'EXIT', {badarg,_}} = (catch maps:from_list(id([{a,b},b]))), {'EXIT', {badarg,_}} = (catch maps:from_list(id([{a,b},{b,b,3}]))), |