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# frozen_string_literal: true
require 'test/unit'
require 'rondpoint'
include Test::Unit::Assertions
include Rondpoint
dico = Dictionnaire.new(
un: Enumeration::DEUX,
deux: true,
petit_nombre: 0,
gros_nombre: 123_456_789
)
assert_equal dico, Rondpoint.copie_dictionnaire(dico)
assert_equal Rondpoint.copie_enumeration(Enumeration::DEUX), Enumeration::DEUX
assert_equal Rondpoint.copie_enumerations([
Enumeration::UN,
Enumeration::DEUX
]), [Enumeration::UN, Enumeration::DEUX]
assert_equal Rondpoint.copie_carte({
'0' => EnumerationAvecDonnees::ZERO.new,
'1' => EnumerationAvecDonnees::UN.new(1),
'2' => EnumerationAvecDonnees::DEUX.new(2, 'deux')
}), {
'0' => EnumerationAvecDonnees::ZERO.new,
'1' => EnumerationAvecDonnees::UN.new(1),
'2' => EnumerationAvecDonnees::DEUX.new(2, 'deux')
}
assert Rondpoint.switcheroo(false)
assert_not_equal EnumerationAvecDonnees::ZERO.new, EnumerationAvecDonnees::UN.new(1)
assert_equal EnumerationAvecDonnees::UN.new(1), EnumerationAvecDonnees::UN.new(1)
assert_not_equal EnumerationAvecDonnees::UN.new(1), EnumerationAvecDonnees::UN.new(2)
# Test the roundtrip across the FFI.
# This shows that the values we send come back in exactly the same state as we sent them.
# i.e. it shows that lowering from ruby and lifting into rust is symmetrical with
# lowering from rust and lifting into ruby.
RT = Retourneur.new
def affirm_aller_retour(vals, fn_name)
vals.each do |v|
id_v = RT.public_send fn_name, v
assert_equal id_v, v, "Round-trip failure: #{v} => #{id_v}"
end
end
MIN_I8 = -1 * 2**7
MAX_I8 = 2**7 - 1
MIN_I16 = -1 * 2**15
MAX_I16 = 2**15 - 1
MIN_I32 = -1 * 2**31
MAX_I32 = 2**31 - 1
MIN_I64 = -1 * 2**31
MAX_I64 = 2**31 - 1
# Ruby floats are always doubles, so won't round-trip through f32 correctly.
# This truncates them appropriately.
F32_ONE_THIRD = [1.0 / 3].pack('f').unpack('f')[0]
# Booleans
affirm_aller_retour([true, false], :identique_boolean)
# Bytes.
affirm_aller_retour([MIN_I8, -1, 0, 1, MAX_I8], :identique_i8)
affirm_aller_retour([0x00, 0x12, 0xFF], :identique_u8)
# Shorts
affirm_aller_retour([MIN_I16, -1, 0, 1, MAX_I16], :identique_i16)
affirm_aller_retour([0x0000, 0x1234, 0xFFFF], :identique_u16)
# Ints
affirm_aller_retour([MIN_I32, -1, 0, 1, MAX_I32], :identique_i32)
affirm_aller_retour([0x00000000, 0x12345678, 0xFFFFFFFF], :identique_u32)
# Longs
affirm_aller_retour([MIN_I64, -1, 0, 1, MAX_I64], :identique_i64)
affirm_aller_retour([0x0000000000000000, 0x1234567890ABCDEF, 0xFFFFFFFFFFFFFFFF], :identique_u64)
# Floats
affirm_aller_retour([0.0, 0.5, 0.25, 1.0, F32_ONE_THIRD], :identique_float)
# Doubles
affirm_aller_retour(
[0.0, 0.5, 0.25, 1.0, 1.0 / 3, Float::MAX, Float::MIN],
:identique_double
)
# Strings
affirm_aller_retour(
['', 'abc', 'été', 'ښي لاس ته لوستلو لوستل',
'😻emoji 👨👧👦multi-emoji, 🇨🇭a flag, a canal, panama'],
:identique_string
)
# Test one way across the FFI.
#
# We send one representation of a value to lib.rs, and it transforms it into another, a string.
# lib.rs sends the string back, and then we compare here in ruby.
#
# This shows that the values are transformed into strings the same way in both ruby and rust.
# i.e. if we assume that the string return works (we test this assumption elsewhere)
# we show that lowering from ruby and lifting into rust has values that both ruby and rust
# both stringify in the same way. i.e. the same values.
#
# If we roundtripping proves the symmetry of our lowering/lifting from here to rust, and lowering/lifting from rust to here,
# and this convinces us that lowering/lifting from here to rust is correct, then
# together, we've shown the correctness of the return leg.
ST = Stringifier.new
def affirm_enchaine(vals, fn_name)
vals.each do |v|
str_v = ST.public_send fn_name, v
assert_equal v.to_s, str_v, "String compare error #{v} => #{str_v}"
end
end
# Test the efficacy of the string transport from rust. If this fails, but everything else
# works, then things are very weird.
assert_equal ST.well_known_string('ruby'), 'uniffi 💚 ruby!'
# Booleans
affirm_enchaine([true, false], :to_string_boolean)
# Bytes.
affirm_enchaine([MIN_I8, -1, 0, 1, MAX_I8], :to_string_i8)
affirm_enchaine([0x00, 0x12, 0xFF], :to_string_u8)
# Shorts
affirm_enchaine([MIN_I16, -1, 0, 1, MAX_I16], :to_string_i16)
affirm_enchaine([0x0000, 0x1234, 0xFFFF], :to_string_u16)
# Ints
affirm_enchaine([MIN_I32, -1, 0, 1, MAX_I32], :to_string_i32)
affirm_enchaine([0x00000000, 0x12345678, 0xFFFFFFFF], :to_string_u32)
# Longs
affirm_enchaine([MIN_I64, -1, 0, 1, MAX_I64], :to_string_i64)
affirm_enchaine([0x0000000000000000, 0x1234567890ABCDEF, 0xFFFFFFFFFFFFFFFF], :to_string_u64)
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