vendor/yaml-rust-0.3.5/tests/specs/cpp2rust.rb

   1 #!/usr/bin/env ruby
   2
   3 TEST_REGEX = /TEST_F\([a-zA-Z0-9_]+,\s+([a-zA-Z0-9_]+)\)/
   4
   5 DISABLED_TESTS = %w(
   6         test_ex7_10_plain_characters
   7         test_ex7_17_flow_mapping_separate_values
   8         test_ex7_21_single_pair_implicit_entries
   9         test_ex7_2_empty_nodes
  10         test_ex8_2_block_indentation_header
  11 )
  12
  13 class Context
  14         attr_accessor :name, :ev, :src
  15         def initialize
  16                 @name = ""
  17                 @src = ""
  18                 @ev = []
  19         end
  20 end
  21
  22 class String
  23         def snakecase
  24                 self
  25                 .gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
  26                 .gsub(/([a-z\d])([A-Z])/, '\1_\2')
  27                 .tr('-', '_')
  28                 .gsub(/\s/, '_')
  29                 .gsub(/__+/, '_')
  30                 .downcase
  31         end
  32 end
  33
  34 ctx = nil
  35
  36 tests = []
  37 IO.foreach(ARGV[0]) do |line|
  38         line.strip!
  39         if ctx
  40                 fail "unexpected TEST_F" if line =~ TEST_REGEX
  41                 if line =~ /^}/
  42                         tests << ctx
  43                         ctx = nil
  44                 end
  45                 if line =~ /^EXPECT_CALL/
  46                         fail 'not end with ;' unless line[-1] == ';'
  47                         v = line.gsub('(', ' ').gsub(')', ' ').split
  48                         ctx.ev << v[2]
  49                 end
  50         else
  51                 next unless line =~ TEST_REGEX
  52                 name = $1
  53                 next unless name =~ /^(Ex\d+_\d+)/
  54                 str = $1.upcase
  55                 $stderr.puts "found #{name}"
  56                 ctx = Context.new
  57                 ctx.name = "test_#{name.snakecase}"
  58                 ctx.src = str
  59         end
  60 end
  61
  62 # code gen
  63 tests.each do |t|
  64         next if t.ev.size == 0
  65         if DISABLED_TESTS.include? t.name
  66                 puts "#[allow(dead_code)]"
  67         else
  68                 puts "#[test]"
  69         end
  70         puts "fn #{t.name}() {"
  71         puts "    let mut v = str_to_test_events(#{t.src}).into_iter();"
  72         t.ev.each do |e|
  73                 puts "    assert_next!(v, TestEvent::#{e});"
  74         end
  75         puts "}"
  76         puts
  77 end
  78