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token_test.exs
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token_test.exs
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defmodule Credo.Code.TokenTest do
use Credo.TestHelper
alias Credo.Code.Token
@heredoc_interpolations_source """
def fun() do
a = \"\"\"
MyModule.\#{fun(Module.value() + 1)}.SubModule.\#{name}"
\"\"\"
end
"""
@heredoc_interpolations_position {1, 5, 1, 60}
@multiple_interpolations_source ~S[a = "MyModule.#{fun(Module.value() + 1)}.SubModule.#{name}"]
@multiple_interpolations_position {1, 5, 1, 60}
@single_interpolations_bin_string_source ~S[a = "MyModule.SubModule.#{name}"]
@single_interpolations_bin_string_position {1, 5, 1, 33}
@no_interpolations_source ~S[134 + 145]
@no_interpolations_position {1, 7, 1, 10}
# Elixir >= 1.9.0
if Version.match?(System.version(), ">= 1.9.0") do
@single_interpolations_list_string_source ~S[a = 'MyModule.SubModule.#{name}']
@single_interpolations_list_string_position {1, 5, 1, 33}
@tag :token_position
test "should give correct token position" do
source = @no_interpolations_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:int, {1, 1, 134}, '134'},
{:dual_op, {1, 5, nil}, :+},
{:int, {1, 7, 145}, '145'}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @no_interpolations_position == position
end
@tag :token_position
test "should give correct token position with a single interpolation" do
source = @single_interpolations_bin_string_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:identifier, {1, 1, nil}, :a},
{:match_op, {1, 3, nil}, :=},
{:bin_string, {1, 5, nil},
[
"MyModule.SubModule.",
{{1, 25, nil}, {1, 31, nil}, [{:identifier, {1, 27, nil}, :name}]}
]}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @single_interpolations_bin_string_position == position
end
@tag :token_position
test "should give correct token position with a single interpolation with list string" do
source = @single_interpolations_list_string_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:identifier, {1, 1, nil}, :a},
{:match_op, {1, 3, nil}, :=},
{:list_string, {1, 5, nil},
[
"MyModule.SubModule.",
{{1, 25, nil}, {1, 31, nil}, [{:identifier, {1, 27, nil}, :name}]}
]}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @single_interpolations_list_string_position == position
end
@tag :token_position
test "should give correct token position with multiple interpolations" do
source = @multiple_interpolations_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:identifier, {1, 1, nil}, :a},
{:match_op, {1, 3, nil}, :=},
{:bin_string, {1, 5, nil},
[
"MyModule.",
{{1, 15, nil}, {1, 40, nil},
[
{:paren_identifier, {1, 17, nil}, :fun},
{:"(", {1, 20, nil}},
{:alias, {1, 21, nil}, :Module},
{:., {1, 27, nil}},
{:paren_identifier, {1, 28, nil}, :value},
{:"(", {1, 33, nil}},
{:")", {1, 34, nil}},
{:dual_op, {1, 36, nil}, :+},
{:int, {1, 38, 1}, '1'},
{:")", {1, 39, nil}}
]},
".SubModule.",
{{1, 52, nil}, {1, 58, nil}, [{:identifier, {1, 54, nil}, :name}]}
]}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @multiple_interpolations_position == position
end
@tag :to_be_implemented
@tag :token_position
test "should give correct token position with multiple interpolations in heredoc" do
source = @heredoc_interpolations_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:identifier, {1, 1, nil}, :def},
{:paren_identifier, {1, 5, nil}, :fun},
{:"(", {1, 8, nil}},
{:")", {1, 9, nil}},
{:do, {1, 11, nil}},
{:eol, {1, 13, 1}},
{:identifier, {2, 3, nil}, :a},
{:match_op, {2, 5, nil}, :=},
{:bin_heredoc, {2, 7, nil},
[
"MyModule.",
{{3, 10, 3},
[
{:paren_identifier, {3, 12, nil}, :fun},
{:"(", {3, 15, nil}},
{:alias, {3, 16, nil}, :Module},
{:., {3, 22, nil}},
{:paren_identifier, {3, 23, nil}, :value},
{:"(", {3, 28, nil}},
{:")", {3, 29, nil}},
{:dual_op, {3, 31, nil}, :+},
{:int, {3, 33, 1}, '1'},
{:")", {3, 34, nil}}
]},
".SubModule.",
{{3, 47, 3}, [{:identifier, {3, 49, nil}, :name}]},
"\"\n"
]},
{:eol, {4, 1, 1}},
{:end, {5, 1, nil}},
{:eol, {5, 4, 1}}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @heredoc_interpolations_position == position
end
@tag needs_elixir: "1.7.0"
test "should give correct token position for map" do
source = ~S(%{"some-atom-with-quotes": "#{filename} world"})
tokens = Credo.Code.to_tokens(source)
expected = [
{:%{}, {1, 1, nil}},
{:"{", {1, 2, nil}},
{:kw_identifier_unsafe, {1, 3, nil}, ["some-atom-with-quotes"]},
{:bin_string, {1, 28, nil},
[{{1, 29, nil}, {1, 39, nil}, [{:identifier, {1, 31, nil}, :filename}]}, " world"]},
{:"}", {1, 47, nil}}
]
assert expected == tokens
position = expected |> Enum.take(4) |> List.last() |> Token.position()
assert {1, 28, 1, 47} == position
end
test "should give correct token position for map /2" do
source = ~S(%{some_atom_with_quotes: "#{filename} world"})
tokens = Credo.Code.to_tokens(source)
expected = [
{:%{}, {1, 1, nil}},
{:"{", {1, 2, nil}},
{:kw_identifier, {1, 3, nil}, :some_atom_with_quotes},
{:bin_string, {1, 26, nil},
[{{1, 27, nil}, {1, 37, nil}, [{:identifier, {1, 29, nil}, :filename}]}, " world"]},
{:"}", {1, 45, nil}}
]
assert expected == tokens
position = expected |> Enum.take(4) |> List.last() |> Token.position()
assert {1, 26, 1, 45} == position
end
end
#
#
#
# Elixir >= 1.6.0 && < 1.9.0
if Version.match?(System.version(), ">= 1.6.0-rc") &&
Version.match?(System.version(), "< 1.9.0") do
@single_interpolations_list_string_source ~S[a = 'MyModule.SubModule.#{name}']
@single_interpolations_list_string_position {1, 5, 1, 33}
@tag :token_position
test "should give correct token position" do
source = @no_interpolations_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:int, {1, 1, 134}, '134'},
{:dual_op, {1, 5, nil}, :+},
{:int, {1, 7, 145}, '145'}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @no_interpolations_position == position
end
@tag :token_position
test "should give correct token position with a single interpolation" do
source = @single_interpolations_bin_string_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:identifier, {1, 1, nil}, :a},
{:match_op, {1, 3, nil}, :=},
{:bin_string, {1, 5, nil},
[
"MyModule.SubModule.",
{{1, 25, 1}, [{:identifier, {1, 27, nil}, :name}]}
]}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @single_interpolations_bin_string_position == position
end
@tag :token_position
test "should give correct token position with a single interpolation with list string" do
source = @single_interpolations_list_string_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:identifier, {1, 1, nil}, :a},
{:match_op, {1, 3, nil}, :=},
{:list_string, {1, 5, nil},
[
"MyModule.SubModule.",
{{1, 25, 1}, [{:identifier, {1, 27, nil}, :name}]}
]}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @single_interpolations_list_string_position == position
end
@tag :token_position
test "should give correct token position with multiple interpolations" do
source = @multiple_interpolations_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:identifier, {1, 1, nil}, :a},
{:match_op, {1, 3, nil}, :=},
{:bin_string, {1, 5, nil},
[
"MyModule.",
{{1, 15, 1},
[
{:paren_identifier, {1, 17, nil}, :fun},
{:"(", {1, 20, nil}},
{:alias, {1, 21, nil}, :Module},
{:., {1, 27, nil}},
{:paren_identifier, {1, 28, nil}, :value},
{:"(", {1, 33, nil}},
{:")", {1, 34, nil}},
{:dual_op, {1, 36, nil}, :+},
{:int, {1, 38, 1}, '1'},
{:")", {1, 39, nil}}
]},
".SubModule.",
{{1, 52, 1}, [{:identifier, {1, 54, nil}, :name}]}
]}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @multiple_interpolations_position == position
end
@tag :to_be_implemented
@tag :token_position
test "should give correct token position with multiple interpolations in heredoc" do
source = @heredoc_interpolations_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:identifier, {1, 1, nil}, :def},
{:paren_identifier, {1, 5, nil}, :fun},
{:"(", {1, 8, nil}},
{:")", {1, 9, nil}},
{:do, {1, 11, nil}},
{:eol, {1, 13, 1}},
{:identifier, {2, 3, nil}, :a},
{:match_op, {2, 5, nil}, :=},
{:bin_heredoc, {2, 7, nil},
[
"MyModule.",
{{3, 10, 3},
[
{:paren_identifier, {3, 12, nil}, :fun},
{:"(", {3, 15, nil}},
{:alias, {3, 16, nil}, :Module},
{:., {3, 22, nil}},
{:paren_identifier, {3, 23, nil}, :value},
{:"(", {3, 28, nil}},
{:")", {3, 29, nil}},
{:dual_op, {3, 31, nil}, :+},
{:int, {3, 33, 1}, '1'},
{:")", {3, 34, nil}}
]},
".SubModule.",
{{3, 47, 3}, [{:identifier, {3, 49, nil}, :name}]},
"\"\n"
]},
{:eol, {4, 1, 1}},
{:end, {5, 1, nil}},
{:eol, {5, 4, 1}}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @heredoc_interpolations_position == position
end
@tag needs_elixir: "1.7.0"
test "should give correct token position for map" do
source = ~S(%{"some-atom-with-quotes": "#{filename} world"})
tokens = Credo.Code.to_tokens(source)
expected = [
{:%{}, {1, 1, nil}},
{:"{", {1, 2, nil}},
{:kw_identifier_unsafe, {1, 3, nil}, ["some-atom-with-quotes"]},
{:bin_string, {1, 28, nil},
[{{1, 29, 1}, [{:identifier, {1, 31, nil}, :filename}]}, " world"]},
{:"}", {1, 47, nil}}
]
assert expected == tokens
position = expected |> Enum.take(4) |> List.last() |> Token.position()
assert {1, 28, 1, 47} == position
end
test "should give correct token position for map /2" do
source = ~S(%{some_atom_with_quotes: "#{filename} world"})
tokens = Credo.Code.to_tokens(source)
expected = [
{:%{}, {1, 1, nil}},
{:"{", {1, 2, nil}},
{:kw_identifier, {1, 3, nil}, :some_atom_with_quotes},
{:bin_string, {1, 26, nil},
[{{1, 27, 1}, [{:identifier, {1, 29, nil}, :filename}]}, " world"]},
{:"}", {1, 45, nil}}
]
assert expected == tokens
position = expected |> Enum.take(4) |> List.last() |> Token.position()
assert {1, 26, 1, 45} == position
end
end
# Elixir <= 1.5.x
if Version.match?(System.version(), "< 1.6.0-rc") do
@tag :token_position
test "token position" do
source = @no_interpolations_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:number, {1, 1, 4}, 134},
{:dual_op, {1, 5, 6}, :+},
{:number, {1, 7, 10}, 145}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @no_interpolations_position == position
end
@tag :token_position
test "should give correct token position with a single interpolation" do
source = @single_interpolations_bin_string_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:identifier, {1, 1, 2}, :a},
{:match_op, {1, 3, 4}, :=},
{:bin_string, {1, 5, 33},
[
"MyModule.SubModule.",
{{1, 25, 32}, [{:identifier, {1, 27, 31}, :name}]}
]}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @single_interpolations_bin_string_position == position
end
@tag :token_position
test "should give correct token position with multiple interpolations" do
source = @multiple_interpolations_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:identifier, {1, 1, 2}, :a},
{:match_op, {1, 3, 4}, :=},
{:bin_string, {1, 5, 60},
[
"MyModule.",
{{1, 15, 41},
[
{:paren_identifier, {1, 17, 20}, :fun},
{:"(", {1, 20, 21}},
{:aliases, {1, 21, 27}, [:Module]},
{:., {1, 27, 28}},
{:paren_identifier, {1, 28, 33}, :value},
{:"(", {1, 33, 34}},
{:")", {1, 34, 35}},
{:dual_op, {1, 36, 37}, :+},
{:number, {1, 38, 39}, 1},
{:")", {1, 39, 40}}
]},
".SubModule.",
{{1, 52, 59}, [{:identifier, {1, 54, 58}, :name}]}
]}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @multiple_interpolations_position == position
end
@tag :to_be_implemented
@tag :token_position
test "should give correct token position with multiple interpolations in heredoc" do
source = @heredoc_interpolations_source
tokens = Credo.Code.to_tokens(source)
expected = [
{:identifier, {1, 1, 4}, :def},
{:paren_identifier, {1, 5, 8}, :fun},
{:"(", {1, 8, 9}},
{:")", {1, 9, 10}},
{:do, {1, 11, 13}},
{:eol, {1, 13, 14}},
{:identifier, {2, 3, 4}, :a},
{:match_op, {2, 5, 6}, :=},
{:bin_string, {2, 7, 1},
[
"MyModule.",
{{3, 10, 36},
[
{:paren_identifier, {3, 12, 15}, :fun},
{:"(", {3, 15, 16}},
{:aliases, {3, 16, 22}, [:Module]},
{:., {3, 22, 23}},
{:paren_identifier, {3, 23, 28}, :value},
{:"(", {3, 28, 29}},
{:")", {3, 29, 30}},
{:dual_op, {3, 31, 32}, :+},
{:number, {3, 33, 34}, 1},
{:")", {3, 34, 35}}
]},
".SubModule.",
{{3, 47, 54}, [{:identifier, {3, 49, 53}, :name}]},
"\"\n"
]},
{:eol, {4, 1, 2}},
{:end, {5, 1, 4}},
{:eol, {5, 4, 5}}
]
assert expected == tokens
position = expected |> List.last() |> Token.position()
assert @heredoc_interpolations_position == position
end
end
end