require 'minitest/autorun' require_relative 'grep' class GrepTest < Minitest::Test def setup IO.write 'iliad.txt', <<~ILIAD Achilles sing, O Goddess! Peleus' son; His wrath pernicious, who ten thousand woes Caused to Achaia's host, sent many a soul Illustrious into Ades premature, And Heroes gave (so stood the will of Jove) To dogs and to all ravening fowls a prey, When fierce dispute had separated once The noble Chief Achilles from the son Of Atreus, Agamemnon, King of men. ILIAD IO.write 'midsummer-night.txt', <<~MSNIGHT I do entreat your grace to pardon me. I know not by what power I am made bold, Nor how it may concern my modesty, In such a presence here to plead my thoughts; But I beseech your grace that I may know The worst that may befall me in this case, If I refuse to wed Demetrius. MSNIGHT IO.write 'paradise-lost.txt', <<~PARADISE Of Mans First Disobedience, and the Fruit Of that Forbidden Tree, whose mortal tast Brought Death into the World, and all our woe, With loss of Eden, till one greater Man Restore us, and regain the blissful Seat, Sing Heav'nly Muse, that on the secret top Of Oreb, or of Sinai, didst inspire That Shepherd, who first taught the chosen Seed PARADISE end def teardown File.delete('iliad.txt') File.delete('midsummer-night.txt') File.delete('paradise-lost.txt') end def test_one_file_one_match_no_flags # skip pattern = "Agamemnon" flags = [] files = ["iliad.txt"] expected = <<~EXPECTED.rstrip Of Atreus, Agamemnon, King of men. EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_one_match_print_line_numbers_flag skip pattern = "Forbidden" flags = ["-n"] files = ["paradise-lost.txt"] expected = <<~EXPECTED.rstrip 2:Of that Forbidden Tree, whose mortal tast EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_one_match_case_insensitive_flag skip pattern = "FORBIDDEN" flags = ["-i"] files = ["paradise-lost.txt"] expected = <<~EXPECTED.rstrip Of that Forbidden Tree, whose mortal tast EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_one_match_print_file_names_flag skip pattern = "Forbidden" flags = ["-l"] files = ["paradise-lost.txt"] expected = <<~EXPECTED.rstrip paradise-lost.txt EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_one_match_match_entire_lines_flag skip pattern = "With loss of Eden, till one greater Man" flags = ["-x"] files = ["paradise-lost.txt"] expected = <<~EXPECTED.rstrip With loss of Eden, till one greater Man EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_one_match_multiple_flags skip pattern = "OF ATREUS, Agamemnon, KIng of MEN." flags = ["-n", "-i", "-x"] files = ["iliad.txt"] expected = <<~EXPECTED.rstrip 9:Of Atreus, Agamemnon, King of men. EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_several_matches_no_flags skip pattern = "may" flags = [] files = ["midsummer-night.txt"] expected = <<~EXPECTED.rstrip Nor how it may concern my modesty, But I beseech your grace that I may know The worst that may befall me in this case, EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_several_matches_print_line_numbers_flag skip pattern = "may" flags = ["-n"] files = ["midsummer-night.txt"] expected = <<~EXPECTED.rstrip 3:Nor how it may concern my modesty, 5:But I beseech your grace that I may know 6:The worst that may befall me in this case, EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_several_matches_match_entire_lines_flag skip pattern = "may" flags = ["-x"] files = ["midsummer-night.txt"] expected = <<~EXPECTED.rstrip EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_several_matches_case_insensitive_flag skip pattern = "ACHILLES" flags = ["-i"] files = ["iliad.txt"] expected = <<~EXPECTED.rstrip Achilles sing, O Goddess! Peleus' son; The noble Chief Achilles from the son EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_several_matches_inverted_flag skip pattern = "Of" flags = ["-v"] files = ["paradise-lost.txt"] expected = <<~EXPECTED.rstrip Brought Death into the World, and all our woe, With loss of Eden, till one greater Man Restore us, and regain the blissful Seat, Sing Heav'nly Muse, that on the secret top That Shepherd, who first taught the chosen Seed EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_no_matches_various_flags skip pattern = "Gandalf" flags = ["-n", "-l", "-x", "-i"] files = ["iliad.txt"] expected = <<~EXPECTED.rstrip EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_one_match_file_flag_takes_precedence_over_line_flag skip pattern = "ten" flags = ["-n", "-l"] files = ["iliad.txt"] expected = <<~EXPECTED.rstrip iliad.txt EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_one_file_several_matches_inverted_and_match_entire_lines_flags skip pattern = "Illustrious into Ades premature," flags = ["-x", "-v"] files = ["iliad.txt"] expected = <<~EXPECTED.rstrip Achilles sing, O Goddess! Peleus' son; His wrath pernicious, who ten thousand woes Caused to Achaia's host, sent many a soul And Heroes gave (so stood the will of Jove) To dogs and to all ravening fowls a prey, When fierce dispute had separated once The noble Chief Achilles from the son Of Atreus, Agamemnon, King of men. EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_multiple_files_one_match_no_flags skip pattern = "Agamemnon" flags = [] files = ["iliad.txt", "midsummer-night.txt", "paradise-lost.txt"] expected = <<~EXPECTED.rstrip iliad.txt:Of Atreus, Agamemnon, King of men. EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_multiple_files_several_matches_no_flags skip pattern = "may" flags = [] files = ["iliad.txt", "midsummer-night.txt", "paradise-lost.txt"] expected = <<~EXPECTED.rstrip midsummer-night.txt:Nor how it may concern my modesty, midsummer-night.txt:But I beseech your grace that I may know midsummer-night.txt:The worst that may befall me in this case, EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_multiple_files_several_matches_print_line_numbers_flag skip pattern = "that" flags = ["-n"] files = ["iliad.txt", "midsummer-night.txt", "paradise-lost.txt"] expected = <<~EXPECTED.rstrip midsummer-night.txt:5:But I beseech your grace that I may know midsummer-night.txt:6:The worst that may befall me in this case, paradise-lost.txt:2:Of that Forbidden Tree, whose mortal tast paradise-lost.txt:6:Sing Heav'nly Muse, that on the secret top EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_multiple_files_one_match_print_file_names_flag skip pattern = "who" flags = ["-l"] files = ["iliad.txt", "midsummer-night.txt", "paradise-lost.txt"] expected = <<~EXPECTED.rstrip iliad.txt paradise-lost.txt EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_multiple_files_several_matches_case_insensitive_flag skip pattern = "TO" flags = ["-i"] files = ["iliad.txt", "midsummer-night.txt", "paradise-lost.txt"] expected = <<~EXPECTED.rstrip iliad.txt:Caused to Achaia's host, sent many a soul iliad.txt:Illustrious into Ades premature, iliad.txt:And Heroes gave (so stood the will of Jove) iliad.txt:To dogs and to all ravening fowls a prey, midsummer-night.txt:I do entreat your grace to pardon me. midsummer-night.txt:In such a presence here to plead my thoughts; midsummer-night.txt:If I refuse to wed Demetrius. paradise-lost.txt:Brought Death into the World, and all our woe, paradise-lost.txt:Restore us, and regain the blissful Seat, paradise-lost.txt:Sing Heav'nly Muse, that on the secret top EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_multiple_files_several_matches_inverted_flag skip pattern = "a" flags = ["-v"] files = ["iliad.txt", "midsummer-night.txt", "paradise-lost.txt"] expected = <<~EXPECTED.rstrip iliad.txt:Achilles sing, O Goddess! Peleus' son; iliad.txt:The noble Chief Achilles from the son midsummer-night.txt:If I refuse to wed Demetrius. EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_multiple_files_one_match_match_entire_lines_flag skip pattern = "But I beseech your grace that I may know" flags = ["-x"] files = ["iliad.txt", "midsummer-night.txt", "paradise-lost.txt"] expected = <<~EXPECTED.rstrip midsummer-night.txt:But I beseech your grace that I may know EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_multiple_files_one_match_multiple_flags skip pattern = "WITH LOSS OF EDEN, TILL ONE GREATER MAN" flags = ["-n", "-i", "-x"] files = ["iliad.txt", "midsummer-night.txt", "paradise-lost.txt"] expected = <<~EXPECTED.rstrip paradise-lost.txt:4:With loss of Eden, till one greater Man EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_multiple_files_no_matches_various_flags skip pattern = "Frodo" flags = ["-n", "-l", "-x", "-i"] files = ["iliad.txt", "midsummer-night.txt", "paradise-lost.txt"] expected = <<~EXPECTED.rstrip EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_multiple_files_several_matches_file_flag_takes_precedence_over_line_number_flag skip pattern = "who" flags = ["-n", "-l"] files = ["iliad.txt", "midsummer-night.txt", "paradise-lost.txt"] expected = <<~EXPECTED.rstrip iliad.txt paradise-lost.txt EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end def test_multiple_files_several_matches_inverted_and_match_entire_lines_flags skip pattern = "Illustrious into Ades premature," flags = ["-x", "-v"] files = ["iliad.txt", "midsummer-night.txt", "paradise-lost.txt"] expected = <<~EXPECTED.rstrip iliad.txt:Achilles sing, O Goddess! Peleus' son; iliad.txt:His wrath pernicious, who ten thousand woes iliad.txt:Caused to Achaia's host, sent many a soul iliad.txt:And Heroes gave (so stood the will of Jove) iliad.txt:To dogs and to all ravening fowls a prey, iliad.txt:When fierce dispute had separated once iliad.txt:The noble Chief Achilles from the son iliad.txt:Of Atreus, Agamemnon, King of men. midsummer-night.txt:I do entreat your grace to pardon me. midsummer-night.txt:I know not by what power I am made bold, midsummer-night.txt:Nor how it may concern my modesty, midsummer-night.txt:In such a presence here to plead my thoughts; midsummer-night.txt:But I beseech your grace that I may know midsummer-night.txt:The worst that may befall me in this case, midsummer-night.txt:If I refuse to wed Demetrius. paradise-lost.txt:Of Mans First Disobedience, and the Fruit paradise-lost.txt:Of that Forbidden Tree, whose mortal tast paradise-lost.txt:Brought Death into the World, and all our woe, paradise-lost.txt:With loss of Eden, till one greater Man paradise-lost.txt:Restore us, and regain the blissful Seat, paradise-lost.txt:Sing Heav'nly Muse, that on the secret top paradise-lost.txt:Of Oreb, or of Sinai, didst inspire paradise-lost.txt:That Shepherd, who first taught the chosen Seed EXPECTED assert_equal expected, Grep.grep(pattern, flags, files) end end