José Valim
0510512375
We also rename Binary.Chars to String.Chars. As Binary.Chars was the protocol used for interpolation, it is semantically correct to have a protocol that works on strings, instead of raw binaries.
156 lines
5.2 KiB
Erlang
156 lines
5.2 KiB
Erlang
-module(string_test).
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-include("elixir.hrl").
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-include_lib("eunit/include/eunit.hrl").
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eval(Content) ->
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{ Value, Binding, _ } = elixir:eval(Content, []),
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{ Value, Binding }.
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extract_interpolations(String) ->
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element(2, elixir_interpolation:extract(1, <<"nofile">>, true, String ++ [$"], $")).
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% Interpolations
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extract_interpolations_without_interpolation_test() ->
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[<<"foo">>] = extract_interpolations("foo").
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extract_interpolations_with_escaped_interpolation_test() ->
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[<<"f#{o}o">>] = extract_interpolations("f\\#{o}o").
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extract_interpolations_with_interpolation_test() ->
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[<<"f">>,
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{'::',[{line,1}],[{{'.',[{line,1}],['Elixir.Kernel',to_string]},[{line,1}],[o]}, { binary, _ , _ }]},
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<<"o">>] = extract_interpolations("f#{:o}o").
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extract_interpolations_with_two_interpolations_test() ->
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[<<"f">>,
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{'::',[{line,1}],[{{'.',[{line,1}],['Elixir.Kernel',to_string]},[{line,1}],[o]}, { binary, _ , _ }]},
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{'::',[{line,1}],[{{'.',[{line,1}],['Elixir.Kernel',to_string]},[{line,1}],[o]}, { binary, _ , _ }]},
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<<"o">>] = extract_interpolations("f#{:o}#{:o}o").
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extract_interpolations_with_only_two_interpolations_test() ->
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[{'::',[{line,1}],[{{'.',[{line,1}],['Elixir.Kernel',to_string]},[{line,1}],[o]}, { binary, _ , _ }]},
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{'::',[{line,1}],[{{'.',[{line,1}],['Elixir.Kernel',to_string]},[{line,1}],[o]}, { binary, _ , _ }]}] = extract_interpolations("#{:o}#{:o}").
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extract_interpolations_with_tuple_inside_interpolation_test() ->
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[<<"f">>,
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{'::',[{line,1}],[{{'.',[{line,1}],['Elixir.Kernel',to_string]},[{line,1}],[{'{}',[{line,1}],[1]}]}, { binary, _ , _ }]},
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<<"o">>] = extract_interpolations("f#{{1}}o").
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extract_interpolations_with_many_expressions_inside_interpolation_test() ->
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[<<"f">>,
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{'::',[{line,2}],[{{'.',[{line,2}],['Elixir.Kernel',to_string]},[{line,2}],[{'__block__',[{line,2}],[1,2]}]},
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{ binary, _ , _ }]},
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<<"o">>] = extract_interpolations("f#{1\n2}o").
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extract_interpolations_with_right_curly_inside_string_inside_interpolation_test() ->
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[<<"f">>,
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{'::',[{line,1}],[{{'.',[{line,1}],['Elixir.Kernel',to_string]},[{line,1}],[<<"f}o">>]},
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{ binary, _ , _ }]},
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<<"o">>] = extract_interpolations("f#{\"f}o\"}o").
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extract_interpolations_with_invalid_expression_inside_interpolation_test() ->
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?assertThrow({interpolation_error, { 1, "invalid token: ", ":1" } }, extract_interpolations("f#{:1}o")).
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%% Bin strings
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empty_bin_string_test() ->
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{<<"">>, _} = eval("\"\"").
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simple_bin_string_test() ->
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{<<"foo">>, _} = eval("\"foo\"").
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bin_string_with_double_quotes_test() ->
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{<<"f\"o\"o">>, _} = eval("\"f\\\"o\\\"o\"").
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bin_string_with_newline_test() ->
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{<<"f\no">>, _} = eval("\"f\no\"").
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bin_string_with_slash_test() ->
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{<<"f\\o">>, _} = eval("\"f\\\\o\"").
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bin_string_with_bell_character_test() ->
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{<<"f\ao">>, _} = eval("\"f\ao\"").
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bin_string_with_interpolation_test() ->
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{<<"foo">>, _} = eval("\"f#{\"o\"}o\"").
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bin_string_with_another_string_inside_string_inside_interpolation_test() ->
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{<<"fbaro">>, _} = eval("\"f#{\"b#{\"a\"}r\"}o\"").
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bin_string_with_another_string_with_curly_inside_interpolation_test() ->
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{<<"fb}ro">>, _} = eval("\"f#{\"b}r\"}o\"").
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bin_string_with_atom_with_separator_inside_interpolation_test() ->
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{<<"f}o">>, _} = eval("\"f#{\"}\"}o\"").
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bin_string_with_lower_case_hex_interpolation_test() ->
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{<<"jklmno">>, _} = eval("\"\\x6a\\x6b\\x6c\\x6d\\x6e\\x6f\"").
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bin_string_with_upper_case_hex_interpolation_test() ->
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{<<"jklmno">>, _} = eval("\"\\x6A\\x6B\\x6C\\x6D\\x6E\\x6F\"").
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bin_string_without_interpolation_and_escaped_test() ->
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{<<"f#o">>, _} = eval("\"f\\#o\"").
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bin_string_with_escaped_interpolation_test() ->
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{<<"f#{'o}o">>, _} = eval("\"f\\#{'o}o\"").
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invalid_string_interpolation_test() ->
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?assertError({'Elixir.TokenMissingError', _, _, _, _}, eval("\"f#{some\"")),
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?assertError({'Elixir.TokenMissingError', _, _, _, _}, eval("\"f#{1+")).
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unterminated_string_interpolation_test() ->
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?assertError({'Elixir.TokenMissingError', _, _, _, _}, eval("\"foo")).
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%% List strings
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empty_list_string_test() ->
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{[], _} = eval("\'\'").
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simple_list_string_test() ->
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{"foo", _} = eval("'foo'").
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list_string_with_double_quotes_test() ->
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{"f'o'o", _} = eval("'f\\'o\\'o'").
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list_string_with_newline_test() ->
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{"f\no", _} = eval("'f\no'").
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list_string_with_slash_test() ->
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{"f\\o", _} = eval("'f\\\\o'").
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list_string_with_bell_character_test() ->
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{"f\ao", _} = eval("'f\ao'").
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list_string_with_interpolation_test() ->
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{"foo", _} = eval("'f#{\"o\"}o'").
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list_string_with_another_string_with_curly_inside_interpolation_test() ->
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{"fb}ro", _} = eval("'f#{\"b}r\"}o'").
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list_string_with_atom_with_separator_inside_interpolation_test() ->
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{"f}o", _} = eval("'f#{\"}\"}o'").
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list_string_with_lower_case_hex_interpolation_test() ->
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{"JKLMNO", _} = eval("'\\x4a\\x4b\\x4c\\x4d\\x4e\\x4f'").
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list_string_with_upper_case_hex_interpolation_test() ->
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{"JKLMNO", _} = eval("'\\x4A\\x4B\\x4C\\x4D\\x4E\\x4F'").
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list_string_without_interpolation_and_escaped_test() ->
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{"f#o", _} = eval("'f\\#o'").
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list_string_with_escaped_interpolation_test() ->
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{"f#{\"o}o", _} = eval("'f\\#{\"o}o'").
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char_test() ->
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{99,[]} = eval("?1 + ?2"),
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{10,[]} = eval("?\\n"),
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{40,[]} = eval("?\\(").
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%% Binaries
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bitstr_with_integer_test() ->
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{<<"fdo">>, _} = eval("<< \"f\", 50+50, \"o\" >>").
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