# This file is a part of Julia. License is MIT: http://julialang.org/license

#tests for /base/char.jl

@test typemin(Char) == 0
@test ndims(Char) == 0
@test getindex('a', 1) == 'a'
@test_throws BoundsError getindex('a',2)
# This is current behavior, but it seems incorrect
@test getindex('a',1,1,1) == 'a'
@test_throws BoundsError getindex('a',1,1,2)
# bswap of a Char should be removed, only the underlying codeunit (UInt32)
# should be swapped
@test bswap('\U10200') == '\U20100'

let

numberchars = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
lowerchars = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
upperchars = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z']
plane1_playingcards = ['🂠', '🂡', '🂢', '🂣', '🂤', '🂥', '🂦', '🂧', '🂨', '🂩', '🂪', '🂫', '🂬', '🂭', '🂮']
plane2_cjkpart1 = ['𠀀', '𠀁', '𠀂', '𠀃', '𠀄', '𠀅', '𠀆', '𠀇', '𠀈', '𠀉', '𠀊', '𠀋', '𠀌', '𠀍', '𠀎', '𠀏']

testarrays = [numberchars; lowerchars; upperchars; plane1_playingcards; plane2_cjkpart1]

#Integer(x::Char) = Int(x)
  #tests ASCII 48 - 57
  counter = 48
  for x in numberchars
    @test Integer(x) == counter
    counter += 1
  end

  #tests ASCII 65 - 90
  counter = 65
  for x in upperchars
    @test Integer(x) == counter
    counter += 1
  end

  #tests ASCII 97 - 122
  counter = 97
  for x in lowerchars
    @test Integer(x) == counter
    counter += 1
  end

  #tests Unicode plane 1: 127136 - 127150
  counter = 127136
  for x in plane1_playingcards
    @test Integer(x) == counter
    counter += 1
  end

  #tests Unicode plane 2: 131072 - 131087
  counter = 131072
  for x in plane2_cjkpart1
    @test Integer(x) == counter
    counter += 1
  end

#convert(::Type{Char}, x::Float16) = char(convert(UInt32, x))
#convert(::Type{Char}, x::Float32) = char(convert(UInt32, x))
#convert(::Type{Char}, x::Float64) = char(convert(UInt32, x))
for x = 1:9
  @test convert(Char, Float16(x)) == convert(Char, Float32(x)) == convert(Char, Float64(x)) == Char(x)
end

#size(c::Char) = ()
  for x in testarrays
    @test size(x) == ()
  end

#ndims(c::Char) = 0
  for x in testarrays
    @test ndims(x) == 0
  end

#length(c::Char) = 1
  for x in testarrays
    @test length(x) == 1
  end

#endof(c::Char) = 1
  for x in testarrays
    @test endof(x) == 1
  end

#getindex(c::Char) = c
  for x in testarrays
    @test getindex(x) == x
  end

#first(c::Char) = c
  for x in testarrays
    @test first(x) == x
  end

#last(c::Char) = c
  for x in testarrays
    @test last(x) == x
  end

#eltype(c::Char) = Char
  for x in testarrays
    @test eltype(x) == Char
  end

#start(c::Char) = false
  for x in testarrays
    @test start(x) == false
  end

#next(c::Char, state) = (c, true)
  for x in testarrays
    for state in [true, false]
      @test next(x, state) == (x, true)
    end
  end

#done(c::Char, state) = state
  for x in testarrays
    for state in [true, false]
      @test done(x, state) == state
    end
  end

#isless(x::Char, y::Integer) = isless(UInt32(x), y)
  for x in upperchars
    @test isless(x, 91) == true
  end

  for x in lowerchars
    @test isless(x, 123) == true
  end

  for x in numberchars
    @test isless(x, 66) == true
  end

  for x in plane1_playingcards
    @test isless(x, 127151) == true
  end

  for x in plane2_cjkpart1
    @test isless(x, 131088) == true
  end

#isless(x::Integer, y::Char) = isless(x, UInt32(y))
  for x in upperchars
    @test isless(64, x) == true
  end

  for x in lowerchars
    @test isless(96, x) == true
  end

  for x in numberchars
    @test isless(47, x) == true
  end

  for x in plane1_playingcards
    @test isless(127135, x) == true
  end

  for x in plane2_cjkpart1
    @test isless(131071, x) == true
  end

end #end of let block

@test convert(Signed, 'A') === Int32(65)
@test convert(Unsigned, 'A') === UInt32(65)