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ada_spec.rb
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# -*- coding: utf-8 -*- #
# frozen_string_literal: true
describe Rouge::Lexers::Ada do
let(:subject) { Rouge::Lexers::Ada.new }
describe 'guessing' do
include Support::Guessing
it 'guesses by filename' do
assert_guess :filename => 'foo.ada'
assert_guess :filename => 'foo.adb'
assert_guess :filename => 'foo.ads'
end
it 'guesses by mimetype' do
assert_guess :mimetype => 'text/x-ada'
end
end
describe 'lexing' do
include Support::Lexing
it 'classifies identifiers' do
assert_tokens_equal 'constant Boolean := A and B',
['Keyword', 'constant'],
['Text', ' '],
['Name.Builtin', 'Boolean'],
['Text', ' '],
['Operator', ':='],
['Text', ' '],
['Name', 'A'],
['Text', ' '],
['Operator.Word', 'and'],
['Text', ' '],
['Name', 'B']
end
it 'accepts Unicode identifiers' do
assert_tokens_equal '東京', ['Name', '東京']
assert_tokens_equal '０東京', ['Error', '０'], ['Name', '東京']
assert_tokens_equal '東京０', ['Name', '東京０']
end
it 'rejects identifiers with double or trailing underscores' do
assert_tokens_equal '_ab', ['Error', '_ab']
assert_tokens_equal 'a__b', ['Error', 'a__b']
assert_tokens_equal 'a_b', ['Name', 'a_b']
assert_tokens_equal 'ab_', ['Error', 'ab_']
end
it 'understands other connecting punctuation' do
assert_tokens_equal 'a﹏b', ['Name', 'a﹏b']
assert_tokens_equal '﹏ab', ['Error', '﹏ab']
assert_tokens_equal 'a﹏﹏b', ['Error', 'a﹏﹏b']
assert_tokens_equal 'ab﹏', ['Error', 'ab﹏']
end
it 'classifies based number literals' do
assert_tokens_equal '2#0001_1110#', ['Literal.Number.Bin', '2#0001_1110#']
assert_tokens_equal '2#0001__1110#', ['Error', '2#0001__1110#']
assert_tokens_equal '8#1234_0000#', ['Literal.Number.Oct', '8#1234_0000#']
assert_tokens_equal '16#abc_BBB_12#', ['Literal.Number.Hex', '16#abc_BBB_12#']
assert_tokens_equal '4#1230000#e+5', ['Literal.Number.Integer', '4#1230000#e+5']
assert_tokens_equal '2#0001_1110#e3', ['Literal.Number.Bin', '2#0001_1110#e3']
assert_tokens_equal '16#abc_BBB.12#', ['Literal.Number.Float', '16#abc_BBB.12#']
end
it 'recognizes exponents in integers and reals' do
assert_tokens_equal '1e6', ['Literal.Number.Integer', '1e6']
assert_tokens_equal '123_456', ['Literal.Number.Integer', '123_456']
assert_tokens_equal '3.14159_26', ['Literal.Number.Float', '3.14159_26']
assert_tokens_equal '3.141_592e-20', ['Literal.Number.Float', '3.141_592e-20']
end
it 'highlights escape sequences inside doubly quoted strings' do
assert_tokens_equal '"Archimedes said ""Εύρηκα"""',
['Literal.String.Double', '"Archimedes said '],
['Literal.String.Escape', '""'],
['Literal.String.Double', 'Εύρηκα'],
['Literal.String.Escape', '""'],
['Literal.String.Double', '"']
end
it 'marks function names in declarations' do
assert_tokens_equal 'Entry Foo IS',
['Keyword.Declaration', 'Entry'],
['Text', ' '],
['Name.Function', 'Foo'],
['Text', ' '],
['Keyword', 'IS']
assert_tokens_equal 'package body Ada.Foo IS',
['Keyword.Declaration', 'package'],
['Text', ' '],
['Keyword.Declaration', 'body'],
['Text', ' '],
['Name.Namespace', 'Ada'],
['Punctuation', '.'],
['Name.Function', 'Foo'],
['Text', ' '],
['Keyword', 'IS']
end
it 'allows both names and builtin names in context clauses' do
assert_tokens_equal 'limited with Math.Integer;',
['Keyword.Namespace', 'limited'],
['Text', ' '],
['Keyword.Namespace', 'with'],
['Text', ' '],
['Name.Namespace', 'Math'],
['Punctuation', '.'],
['Name.Namespace', 'Integer'],
['Punctuation', ';']
end
it 'recovers quickly after mistakenly entering :libunit_name' do
# A `with` keyword at the beginning of a line is 99.9% sure to be
# a context clause, but there are things that could be mistaken if
# they are indented strangely:
#
# generic
# with function Random return Integer is <>;
# procedure Foo;
#
# If that `with` is not indented, we should recover immediately:
assert_tokens_equal 'with function Random',
['Keyword.Namespace', 'with'],
['Text', ' '],
['Keyword.Declaration', 'function'],
['Text', ' '],
['Name.Function', 'Random']
# Another case that's even less likely to be at BOL:
#
# type Painted_Point is new Point with
# record
# Paint : Color := White;
# end record;
#
# type Addition is new Binary_Operation with null record;
assert_tokens_equal 'with record Paint',
['Keyword.Namespace', 'with'],
['Text', ' '],
['Keyword', 'record'],
['Text', ' '],
['Name', 'Paint']
assert_tokens_equal 'with null record;',
['Keyword.Namespace', 'with'],
['Text', ' '],
['Keyword', 'null'],
['Text', ' '],
['Keyword', 'record'],
['Punctuation', ';']
# Finally: raise Runtime_Error with "NO!"
assert_tokens_equal 'with "NO!"',
['Keyword.Namespace', 'with'],
['Text', ' '],
['Literal.String.Double', '"NO!"']
end
end
end