diff options
Diffstat (limited to 'lib/stdlib/test/property_test')
| -rw-r--r-- | lib/stdlib/test/property_test/lists_prop.erl | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/lib/stdlib/test/property_test/lists_prop.erl b/lib/stdlib/test/property_test/lists_prop.erl index 4d5809b262..00b518ff83 100644 --- a/lib/stdlib/test/property_test/lists_prop.erl +++ b/lib/stdlib/test/property_test/lists_prop.erl @@ -513,6 +513,23 @@ prop_keymerge() -> ) ). +prop_keymerge_invalid() -> + ?FORALL( + {N, InList, X, Y}, + ?LET( + N, + range(1, 5), + ?LET( + {L, X, Y}, + {list(gen_tuple(N, N+3)), non_list(), non_list()}, + {N, L, X, Y} + ) + ), + expect_error(fun lists:keymerge/3, [N, InList, Y]) andalso + expect_error(fun lists:keymerge/3, [N, X, InList]) andalso + expect_error(fun lists:keymerge/3, [N, X, Y]) + ). + %% keyreplace/4 prop_keyreplace() -> ?FORALL( @@ -745,6 +762,17 @@ prop_merge_1() -> check_merged(fun erlang:'=<'/2, InLists, lists:merge(InLists)) ). +prop_merge_1_invalid() -> + ?FORALL( + InLists, + ?LET( + {L1, X, L2}, + {list(oneof([non_list(), gen_list()])), non_list(), list(oneof([non_list(), gen_list()]))}, + L1 ++ [X|L2] + ), + expect_error(fun lists:merge/1, [InLists]) + ). + %% merge/2 prop_merge_2() -> ?FORALL( @@ -757,6 +785,15 @@ prop_merge_2() -> check_merged(fun erlang:'=<'/2, [InList1, InList2], lists:merge(InList1, InList2)) ). +prop_merge_2_invalid() -> + ?FORALL( + {InList, X, Y}, + {gen_list(), non_list(), non_list()}, + expect_error(fun lists:merge/2, [InList, X]) andalso + expect_error(fun lists:merge/2, [X, InList]) andalso + expect_error(fun lists:merge/2, [X, Y]) + ). + %% merge/3 prop_merge_3() -> ?FORALL( @@ -769,6 +806,15 @@ prop_merge_3() -> check_merged(SortFn, [InList1, InList2], lists:merge(SortFn, InList1, InList2)) ). +prop_merge_3_invalid() -> + ?FORALL( + {SortFn, InList, X, Y}, + {gen_ordering_fun(), gen_list(), non_list(), non_list()}, + expect_error(fun lists:merge/3, [SortFn, InList, Y]) andalso + expect_error(fun lists:merge/3, [SortFn, X, InList]) andalso + expect_error(fun lists:merge/3, [SortFn, X, Y]) + ). + %% merge3/3 prop_merge3() -> ?FORALL( @@ -781,6 +827,18 @@ prop_merge3() -> check_merged(fun erlang:'=<'/2, [InList1, InList2, InList3], lists:merge3(InList1, InList2, InList3)) ). +prop_merge3_invalid() -> + ?FORALL( + {InList, X, Y, Z}, + {gen_list(), non_list(), non_list(), non_list()}, + expect_error(fun lists:merge/3, [InList, InList, Z]) andalso + expect_error(fun lists:merge/3, [InList, Y, InList]) andalso + expect_error(fun lists:merge/3, [InList, Y, Z]) andalso + expect_error(fun lists:merge/3, [X, InList, Z]) andalso + expect_error(fun lists:merge/3, [X, Y, InList]) andalso + expect_error(fun lists:merge/3, [X, Y, Z]) + ). + %% min/1 prop_min() -> ?FORALL( @@ -1132,6 +1190,23 @@ prop_ukeymerge() -> ) ). +prop_ukeymerge_invalid() -> + ?FORALL( + {N, InList, X, Y}, + ?LET( + N, + range(1, 5), + ?LET( + {L, X, Y}, + {list(gen_tuple(N, N+3)), non_list(), non_list()}, + {N, L, X, Y} + ) + ), + expect_error(fun lists:ukeymerge/3, [N, InList, Y]) andalso + expect_error(fun lists:ukeymerge/3, [N, X, InList]) andalso + expect_error(fun lists:ukeymerge/3, [N, X, Y]) + ). + %% ukeysort/2 prop_ukeysort() -> ?FORALL( @@ -1156,6 +1231,17 @@ prop_umerge_1() -> check_umerged(InLists, lists:umerge(InLists)) ). +prop_umerge_1_invalid() -> + ?FORALL( + InList, + ?LET( + {L1, X, L2}, + {list(oneof([non_list(), gen_list()])), non_list(), list(oneof([non_list(), gen_list()]))}, + L1 ++ [X|L2] + ), + expect_error(fun lists:umerge/1, [InList]) + ). + %% umerge/2 prop_umerge_2() -> ?FORALL( @@ -1168,6 +1254,15 @@ prop_umerge_2() -> check_umerged([InList1, InList2], lists:umerge(InList1, InList2)) ). +prop_umerge_2_invalid() -> + ?FORALL( + {InList, X, Y}, + {gen_list(), non_list(), non_list()}, + expect_error(fun lists:umerge/2, [InList, Y]) andalso + expect_error(fun lists:umerge/2, [X, InList]) andalso + expect_error(fun lists:umerge/2, [X, Y]) + ). + %% umerge/3 prop_umerge_3() -> ?FORALL( @@ -1180,6 +1275,15 @@ prop_umerge_3() -> check_umerged(SortFn, [InList1, InList2], lists:umerge(SortFn, InList1, InList2)) ). +prop_umerge_3_invalid() -> + ?FORALL( + {SortFn, InList, X, Y}, + {gen_ordering_fun(), gen_list(), non_list(), non_list()}, + expect_error(fun lists:umerge/3, [SortFn, InList, Y]) andalso + expect_error(fun lists:umerge/3, [SortFn, X, InList]) andalso + expect_error(fun lists:umerge/3, [SortFn, X, Y]) + ). + %% umerge3/3 prop_umerge3() -> ?FORALL( @@ -1192,6 +1296,19 @@ prop_umerge3() -> check_umerged([InList1, InList2, InList3], lists:umerge3(InList1, InList2, InList3)) ). +prop_umerge3_invalid() -> + ?FORALL( + {InList, X, Y, Z}, + {gen_list(), non_list(), non_list(), non_list()}, + expect_error(fun lists:umerge3/3, [InList, InList, Z]) andalso + expect_error(fun lists:umerge3/3, [InList, Y, InList]) andalso + expect_error(fun lists:umerge3/3, [InList, Y, Z]) andalso + expect_error(fun lists:umerge3/3, [X, InList, InList]) andalso + expect_error(fun lists:umerge3/3, [X, InList, Z]) andalso + expect_error(fun lists:umerge3/3, [X, Y, InList]) andalso + expect_error(fun lists:umerge3/3, [X, Y, Z]) + ). + %% uniq/1 prop_uniq_1() -> ?FORALL( @@ -1530,6 +1647,9 @@ prop_zipwith3_5() -> %%% Generators %%% %%%%%%%%%%%%%%%%%% +non_list() -> + ?SUCHTHAT(NonList, gen_any(), not is_list(NonList)). + %% Generator for lists of the given type, folding the given function %% over values on the top level as they are generated. The first generated %% value serves as the initial accumulator. @@ -1740,6 +1860,17 @@ gen_ordering_fun() -> %%%%%%%%%%%%%%% %% -------------------------------------------------------------------- +expect_error(Fn, Args) when is_function(Fn, length(Args))-> + try + erlang:apply(Fn, Args) + of + _ -> false + catch + error:_ -> true; + _:_ -> false + end. + +%% -------------------------------------------------------------------- check_appended([], []) -> true; check_appended([[]|Ls], AL) -> |