141 lines
5.0 KiB
Erlang
141 lines
5.0 KiB
Erlang
%% SPDX-License-Identifier: Apache-2.0
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%% SPDX-FileCopyrightText: 2021 The Elixir Team
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%% SPDX-FileCopyrightText: 2012 Plataformatec
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-module(string_test).
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-include("../../src/elixir.hrl").
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-include_lib("eunit/include/eunit.hrl").
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eval(Content) ->
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Quoted = elixir:'string_to_quoted!'(Content, 1, 1, <<"nofile">>, []),
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{Value, Binding, _} = elixir:eval_forms(Quoted, [], elixir:env_for_eval([])),
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{Value, Binding}.
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extract_interpolations(String) ->
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case elixir_interpolation:extract(1, 1, #elixir_tokenizer{}, true, String ++ [$"], $") of
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{error, Error} ->
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Error;
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{_, _, Parts, _, _} ->
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Parts
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end.
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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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{1, 10, ["f\\#{o}o"], [], _} =
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elixir_interpolation:extract(1, 2, #elixir_tokenizer{}, true, "f\\#{o}o\"", $").
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extract_interpolations_with_interpolation_test() ->
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["f",
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{{1, 2, nil}, {1, 6, nil}, [{atom, {1, 4, _}, o}]},
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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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{{1, 2, nil}, {1, 6, nil}, [{atom, {1, 4, _}, o}]},
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{{1, 7, nil}, {1, 11, nil}, [{atom, {1, 9, _}, o}]},
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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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[{{1, 1, nil}, {1, 5, nil}, [{atom, {1, 3, _}, o}]},
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{{1, 6, nil}, {1, 10, nil}, [{atom, {1, 8, _}, o}]}] = extract_interpolations("#{:o}#{:o}").
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extract_interpolations_with_tuple_inside_interpolation_test() ->
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["f",
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{{1, 2, nil}, {1, 7, nil}, [{'{', {1, 4, nil}}, {int, {1, 5, 1}, "1"}, {'}', {1, 6, nil}}]},
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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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{{1, 2, nil}, {2, 2, nil}, [{int, {1, 4, 1}, "1"}, {eol, {1, 5, 1}}, {int, {2, 1, 2}, "2"}]},
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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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{{1, 2, nil}, {1, 9, nil}, [{bin_string, {1, 4, nil}, [<<"f}o">>]}]},
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"o"] = extract_interpolations("f#{\"f}o\"}o").
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extract_interpolations_with_left_curly_inside_string_inside_interpolation_test() ->
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["f",
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{{1, 2, nil}, {1, 9, nil}, [{bin_string, {1, 4, nil}, [<<"f{o">>]}]},
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"o"] = extract_interpolations("f#{\"f{o\"}o").
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extract_interpolations_with_escaped_quote_inside_string_inside_interpolation_test() ->
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["f",
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{{1, 2, nil}, {1, 10, nil}, [{bin_string, {1, 4, nil}, [<<"f\"o">>]}]},
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"o"] = extract_interpolations("f#{\"f\\\"o\"}o").
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extract_interpolations_with_less_than_operation_inside_interpolation_test() ->
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["f",
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{{1, 2, nil}, {1, 7, nil}, [{int, {1, 4, 1}, "1"}, {rel_op, {1, 5, nil}, '<'}, {int, {1, 6, 2}, "2"}]},
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"o"] = extract_interpolations("f#{1<2}o").
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extract_interpolations_with_an_escaped_character_test() ->
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["f",
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{{1, 2, nil}, {1, 16, nil}, [{char, {1, 4, "?\\a"}, 7}, {rel_op, {1, 8, nil}, '>'}, {char, {1, 10, "?\\a"}, 7}]}
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] = extract_interpolations("f#{?\\a > ?\\a }").
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extract_interpolations_with_invalid_expression_inside_interpolation_test() ->
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{[{line, 1}, {column, 4}], "unexpected token: ", _} = extract_interpolations("f#{:1}o").
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%% Bin strings
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empty_test() ->
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{<<"">>, _} = eval("\"\"").
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string_with_double_quotes_test() ->
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{<<"f\"o\"o">>, _} = eval("\"f\\\"o\\\"o\"").
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string_with_newline_test() ->
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{<<"f\no">>, _} = eval("\"f\no\"").
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string_with_slash_test() ->
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{<<"f\\o">>, _} = eval("\"f\\\\o\"").
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string_with_bell_character_test() ->
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{<<"f\ao">>, _} = eval("\"f\ao\"").
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string_with_interpolation_test() ->
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{<<"foo">>, _} = eval("\"f#{\"o\"}o\"").
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string_with_another_string_inside_string_inside_interpolation_test() ->
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{<<"fbaro">>, _} = eval("\"f#{\"b#{\"a\"}r\"}o\"").
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string_with_another_string_with_curly_inside_interpolation_test() ->
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{<<"fb}ro">>, _} = eval("\"f#{\"b}r\"}o\"").
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string_with_atom_with_separator_inside_interpolation_test() ->
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{<<"f}o">>, _} = eval("\"f#{\"}\"}o\"").
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string_with_lower_case_hex_interpolation_test() ->
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{<<"jklmno">>, _} = eval("\"\\x6a\\x6b\\x6c\\x6d\\x6e\\x6f\"").
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string_with_upper_case_hex_interpolation_test() ->
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{<<"jklmno">>, _} = eval("\"\\x6A\\x6B\\x6C\\x6D\\x6E\\x6F\"").
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string_without_interpolation_and_escaped_test() ->
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{<<"f#o">>, _} = eval("\"f\\#o\"").
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string_with_escaped_interpolation_test() ->
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{<<"f#{'o}o">>, _} = eval("\"f\\#{'o}o\"").
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string_with_the_end_of_line_slash_test() ->
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{<<"fo">>, _} = eval("\"f\\\no\""),
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{<<"fo">>, _} = eval("\"f\\\r\no\"").
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invalid_string_interpolation_test() ->
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?assertError(#{'__struct__' := 'Elixir.TokenMissingError'}, eval("\"f#{some\"")),
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?assertError(#{'__struct__' := 'Elixir.TokenMissingError'}, eval("\"f#{1+")).
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unterminated_string_interpolation_test() ->
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?assertError(#{'__struct__' := 'Elixir.TokenMissingError'}, eval("\"foo")).
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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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