diff options
Diffstat (limited to 'test/prism/regexp_test.rb')
-rw-r--r-- | test/prism/regexp_test.rb | 126 |
1 files changed, 62 insertions, 64 deletions
diff --git a/test/prism/regexp_test.rb b/test/prism/regexp_test.rb index 0a5fc2b4fc..297020fc72 100644 --- a/test/prism/regexp_test.rb +++ b/test/prism/regexp_test.rb @@ -2,78 +2,84 @@ require_relative "test_helper" -return if Prism::BACKEND == :FFI - module Prism class RegexpTest < TestCase - ############################################################################## + ############################################################################ # These tests test the actual use case of extracting named capture groups - ############################################################################## + ############################################################################ def test_named_captures_with_arrows - assert_equal(["foo"], named_captures("(?<foo>bar)")) + assert_equal([:foo], named_captures("(?<foo>bar)")) end def test_named_captures_with_single_quotes - assert_equal(["foo"], named_captures("(?'foo'bar)")) + assert_equal([:foo], named_captures("(?'foo'bar)")) end def test_nested_named_captures_with_arrows - assert_equal(["foo", "bar"], named_captures("(?<foo>(?<bar>baz))")) + assert_equal([:foo, :bar], named_captures("(?<foo>(?<bar>baz))")) end def test_nested_named_captures_with_single_quotes - assert_equal(["foo", "bar"], named_captures("(?'foo'(?'bar'baz))")) + assert_equal([:foo, :bar], named_captures("(?'foo'(?'bar'baz))")) end def test_allows_duplicate_named_captures - assert_equal(["foo", "foo"], named_captures("(?<foo>bar)(?<foo>baz)")) + assert_equal([:foo], named_captures("(?<foo>bar)(?<foo>baz)")) end def test_named_capture_inside_fake_range_quantifier - assert_equal(["foo"], named_captures("foo{1, (?<foo>2)}")) + assert_equal([:foo], named_captures("foo{1, (?<foo>2)}")) + end + + def test_fake_named_captures_inside_character_sets + assert_equal([], named_captures("[a-z(?<foo>)]")) end - ############################################################################## + def test_fake_named_capture_inside_character_set_with_escaped_ending + assert_equal([], named_captures("[a-z\\](?<foo>)]")) + end + + ############################################################################ # These tests test the rest of the AST. They are not exhaustive, but they # should cover the most common cases. We test these to make sure we don't # accidentally regress and stop being able to extract named captures. - ############################################################################## + ############################################################################ def test_alternation - refute_nil(named_captures("foo|bar")) + assert_valid_regexp("foo|bar") end def test_anchors - refute_nil(named_captures("^foo$")) + assert_valid_regexp("^foo$") end def test_any - refute_nil(named_captures(".")) + assert_valid_regexp(".") end def test_posix_character_classes - refute_nil(named_captures("[[:digit:]]")) + assert_valid_regexp("[[:digit:]]") end def test_negated_posix_character_classes - refute_nil(named_captures("[[:^digit:]]")) + assert_valid_regexp("[[:^digit:]]") end def test_invalid_posix_character_classes_should_fall_back_to_regular_classes - refute_nil(named_captures("[[:foo]]")) + assert_valid_regexp("[[:foo]]") end def test_character_sets - refute_nil(named_captures("[abc]")) + assert_valid_regexp("[abc]") end def test_nested_character_sets - refute_nil(named_captures("[[abc]]")) + assert_valid_regexp("[[abc]]") end def test_nested_character_sets_with_operators - refute_nil(named_captures("[[abc] && [def]]")) + assert_valid_regexp("[[abc] && [def]]") end def test_named_capture_inside_nested_character_set @@ -81,120 +87,108 @@ module Prism end def test_negated_character_sets - refute_nil(named_captures("[^abc]")) + assert_valid_regexp("[^abc]") end def test_character_ranges - refute_nil(named_captures("[a-z]")) + assert_valid_regexp("[a-z]") end def test_negated_character_ranges - refute_nil(named_captures("[^a-z]")) - end - - def test_fake_named_captures_inside_character_sets - assert_equal([], named_captures("[a-z(?<foo>)]")) - end - - def test_fake_named_capture_inside_character_set_with_escaped_ending - assert_equal([], named_captures("[a-z\\](?<foo>)]")) + assert_valid_regexp("[^a-z]") end def test_comments - refute_nil(named_captures("(?#foo)")) + assert_valid_regexp("(?#foo)") end def test_comments_with_escaped_parentheses - refute_nil(named_captures("(?#foo\\)\\))")) + assert_valid_regexp("(?#foo\\)\\))") end def test_non_capturing_groups - refute_nil(named_captures("(?:foo)")) + assert_valid_regexp("(?:foo)") end def test_positive_lookaheads - refute_nil(named_captures("(?=foo)")) + assert_valid_regexp("(?=foo)") end def test_negative_lookaheads - refute_nil(named_captures("(?!foo)")) + assert_valid_regexp("(?!foo)") end def test_positive_lookbehinds - refute_nil(named_captures("(?<=foo)")) + assert_valid_regexp("(?<=foo)") end def test_negative_lookbehinds - refute_nil(named_captures("(?<!foo)")) + assert_valid_regexp("(?<!foo)") end def test_atomic_groups - refute_nil(named_captures("(?>foo)")) + assert_valid_regexp("(?>foo)") end def test_absence_operator - refute_nil(named_captures("(?~foo)")) + assert_valid_regexp("(?~foo)") end def test_conditional_expression_with_index - refute_nil(named_captures("(?(1)foo)")) + assert_valid_regexp("(?(1)foo)") end def test_conditional_expression_with_name - refute_nil(named_captures("(?(foo)bar)")) + assert_valid_regexp("(?(foo)bar)") end def test_conditional_expression_with_group - refute_nil(named_captures("(?(<foo>)bar)")) + assert_valid_regexp("(?(<foo>)bar)") end def test_options_on_groups - refute_nil(named_captures("(?imxdau:foo)")) - end - - def test_options_on_groups_with_invalid_options - assert_nil(named_captures("(?z:bar)")) + assert_valid_regexp("(?imxdau:foo)") end def test_options_on_groups_getting_turned_off - refute_nil(named_captures("(?-imx:foo)")) + assert_valid_regexp("(?-imx:foo)") end def test_options_on_groups_some_getting_turned_on_some_getting_turned_off - refute_nil(named_captures("(?im-x:foo)")) + assert_valid_regexp("(?im-x:foo)") end def test_star_quantifier - refute_nil(named_captures("foo*")) + assert_valid_regexp("foo*") end def test_plus_quantifier - refute_nil(named_captures("foo+")) + assert_valid_regexp("foo+") end def test_question_mark_quantifier - refute_nil(named_captures("foo?")) + assert_valid_regexp("foo?") end def test_endless_range_quantifier - refute_nil(named_captures("foo{1,}")) + assert_valid_regexp("foo{1,}") end def test_beginless_range_quantifier - refute_nil(named_captures("foo{,1}")) + assert_valid_regexp("foo{,1}") end def test_range_quantifier - refute_nil(named_captures("foo{1,2}")) + assert_valid_regexp("foo{1,2}") end def test_fake_range_quantifier_because_of_spaces - refute_nil(named_captures("foo{1, 2}")) + assert_valid_regexp("foo{1, 2}") end - ############################################################################## + ############################################################################ # These test that flag values are correct. - ############################################################################## + ############################################################################ def test_flag_ignorecase assert_equal(Regexp::IGNORECASE, options("i")) @@ -229,26 +223,30 @@ module Prism def test_last_encoding_option_wins regex = "/foo/nu" - option = Prism.parse(regex).value.statements.body.first.options + option = Prism.parse_statement(regex).options assert_equal Regexp::FIXEDENCODING, option regex = "/foo/un" - option = Prism.parse(regex).value.statements.body.first.options + option = Prism.parse_statement(regex).options assert_equal Regexp::NOENCODING, option end private + def assert_valid_regexp(source) + assert Prism.parse_success?("/#{source}/ =~ \"\"") + end + def named_captures(source) - Debug.named_captures(source) + Prism.parse("/#{source}/ =~ \"\"").value.locals end def options(flags) options = ["/foo/#{flags}", "/foo\#{1}/#{flags}"].map do |source| - Prism.parse(source).value.statements.body.first.options + Prism.parse_statement(source).options end # Check that we get the same set of options from both regular expressions |