diff options
Diffstat (limited to 'test/prism/unescape_test.rb')
| -rw-r--r-- | test/prism/unescape_test.rb | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/test/prism/unescape_test.rb b/test/prism/unescape_test.rb new file mode 100644 index 0000000000..a7d955b315 --- /dev/null +++ b/test/prism/unescape_test.rb @@ -0,0 +1,165 @@ +# frozen_string_literal: true + +require_relative "test_helper" + +return if YARP::BACKEND == :FFI + +module YARP + class UnescapeNoneTest < TestCase + def test_backslash + assert_unescape_none("\\") + end + + def test_single_quote + assert_unescape_none("'") + end + + private + + def assert_unescape_none(source) + assert_equal(source, Debug.unescape_none(source)) + end + end + + class UnescapeMinimalTest < TestCase + def test_backslash + assert_unescape_minimal("\\", "\\\\") + end + + def test_single_quote + assert_unescape_minimal("'", "\\'") + end + + def test_single_char + assert_unescape_minimal("\\a", "\\a") + end + + private + + def assert_unescape_minimal(expected, source) + assert_equal(expected, Debug.unescape_minimal(source)) + end + end + + class UnescapeAllTest < TestCase + def test_backslash + assert_unescape_all("\\", "\\\\") + end + + def test_single_quote + assert_unescape_all("'", "\\'") + end + + def test_single_char + assert_unescape_all("\a", "\\a") + assert_unescape_all("\b", "\\b") + assert_unescape_all("\e", "\\e") + assert_unescape_all("\f", "\\f") + assert_unescape_all("\n", "\\n") + assert_unescape_all("\r", "\\r") + assert_unescape_all("\s", "\\s") + assert_unescape_all("\t", "\\t") + assert_unescape_all("\v", "\\v") + end + + def test_octal + assert_unescape_all("\a", "\\7") + assert_unescape_all("#", "\\43") + assert_unescape_all("a", "\\141") + end + + def test_hexadecimal + assert_unescape_all("\a", "\\x7") + assert_unescape_all("#", "\\x23") + assert_unescape_all("a", "\\x61") + end + + def test_deletes + assert_unescape_all("\x7f", "\\c?") + assert_unescape_all("\x7f", "\\C-?") + end + + def test_unicode_codepoint + assert_unescape_all("a", "\\u0061") + assert_unescape_all("Ā", "\\u0100", "UTF-8") + assert_unescape_all("က", "\\u1000", "UTF-8") + assert_unescape_all("တ", "\\u1010", "UTF-8") + + assert_nil(unescape_all("\\uxxxx")) + end + + def test_unicode_codepoints + assert_unescape_all("a", "\\u{61}") + assert_unescape_all("Ā", "\\u{0100}", "UTF-8") + assert_unescape_all("က", "\\u{1000}", "UTF-8") + assert_unescape_all("တ", "\\u{1010}", "UTF-8") + assert_unescape_all("𐀀", "\\u{10000}", "UTF-8") + assert_unescape_all("𐀐", "\\u{10010}", "UTF-8") + assert_unescape_all("aĀကတ𐀀𐀐", "\\u{ 61\s100\n1000\t1010\r10000\v10010 }", "UTF-8") + + assert_nil(unescape_all("\\u{110000}")) + assert_nil(unescape_all("\\u{110000 110001 110002}")) + end + + def test_control_characters + each_printable do |chr| + byte = eval("\"\\c#{chr}\"").bytes.first + assert_unescape_all(byte.chr, "\\c#{chr}") + + byte = eval("\"\\C-#{chr}\"").bytes.first + assert_unescape_all(byte.chr, "\\C-#{chr}") + end + end + + def test_meta_characters + each_printable do |chr| + byte = eval("\"\\M-#{chr}\"").bytes.first + assert_unescape_all(byte.chr, "\\M-#{chr}") + end + end + + def test_meta_control_characters + each_printable do |chr| + byte = eval("\"\\M-\\c#{chr}\"").bytes.first + assert_unescape_all(byte.chr, "\\M-\\c#{chr}") + + byte = eval("\"\\M-\\C-#{chr}\"").bytes.first + assert_unescape_all(byte.chr, "\\M-\\C-#{chr}") + + byte = eval("\"\\c\\M-#{chr}\"").bytes.first + assert_unescape_all(byte.chr, "\\c\\M-#{chr}") + end + end + + def test_escaping_normal_characters + assert_unescape_all("d", "\\d") + assert_unescape_all("g", "\\g") + end + + def test_whitespace_escaping_string_list + assert_equal("a b", Debug.unescape_whitespace("a\\ b")) + assert_equal("a\tb", Debug.unescape_whitespace("a\\\tb")) + assert_equal("a\nb", Debug.unescape_whitespace("a\\\nb")) + assert_equal("a\nb", Debug.unescape_whitespace("a\\\r\nb")) + end + + private + + def unescape_all(source) + Debug.unescape_all(source) + end + + def assert_unescape_all(expected, source, forced_encoding = nil) + result = unescape_all(source) + result.force_encoding(forced_encoding) if forced_encoding + assert_equal(expected, result) + end + + def each_printable + (1..127).each do |ord| + chr = ord.chr + yield chr if chr.match?(/[[:print:]]/) && chr != " " && chr != "\\" + end + end + end +end |