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Split tests for Array#shuffle and Array#sample

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Nobuyoshi Nakada 2022-10-23 18:33:03 +09:00
parent bcb72f503c
commit 21fa0135a4
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1 changed files with 21 additions and 1 deletions
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22
test/ruby/test_array.rb
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@ -2980,7 +2980,9 @@ class TestArray < Test::Unit::TestCase
assert_raise(RangeError) {
[*0..2].shuffle(random: gen)
}
end
def test_shuffle_random_clobbering
ary = (0...10000).to_a
gen = proc do
ary.replace([])
@ -2990,7 +2992,9 @@ class TestArray < Test::Unit::TestCase
alias rand call
end
assert_raise(RuntimeError) {ary.shuffle!(random: gen)}
end
def test_shuffle_random_zero
zero = Object.new
def zero.to_int
0
@ -3003,7 +3007,10 @@ class TestArray < Test::Unit::TestCase
end
ary = (0...10000).to_a
assert_equal(ary.rotate, ary.shuffle(random: gen_to_int))
end
def test_shuffle_random_invalid_generator
ary = (0...10).to_a
assert_raise(NoMethodError) {
ary.shuffle(random: Object.new)
}
@ -3020,7 +3027,9 @@ class TestArray < Test::Unit::TestCase
assert_include([0, 1, 2], sample)
}
end
end
def test_sample_statistics
srand(0)
a = (1..18).to_a
(0..20).each do |n|
@ -3037,9 +3046,13 @@ class TestArray < Test::Unit::TestCase
end
assert_operator(h.values.min * 2, :>=, h.values.max) if n != 0
end
end
def test_sample_invalid_argument
assert_raise(ArgumentError, '[ruby-core:23374]') {[1, 2].sample(-1)}
end
def test_sample_random_srand0
gen = Random.new(0)
srand(0)
a = (1..18).to_a
@ -3048,13 +3061,15 @@ class TestArray < Test::Unit::TestCase
assert_equal(a.sample(n), a.sample(n, random: gen), "#{i}/#{n}")
end
end
end
def test_sample_unknown_keyword
assert_raise_with_message(ArgumentError, /unknown keyword/) do
[0, 1, 2].sample(xawqij: "a")
end
end
def test_sample_random
def test_sample_random_generator
ary = (0...10000).to_a
assert_raise(ArgumentError) {ary.sample(1, 2, random: nil)}
gen0 = proc do |max|
@ -3097,7 +3112,9 @@ class TestArray < Test::Unit::TestCase
assert_equal([5000, 0, 5001, 2, 5002, 4, 5003, 6, 5004, 8, 5005], ary.sample(11, random: gen0))
ary.sample(11, random: gen1) # implementation detail, may change in the future
assert_equal([], ary)
end
def test_sample_random_generator_half
half = Object.new
def half.to_int
5000
@ -3110,7 +3127,10 @@ class TestArray < Test::Unit::TestCase
end
ary = (0...10000).to_a
assert_equal(5000, ary.sample(random: gen_to_int))
end
def test_sample_random_invalid_generator
ary = (0..10).to_a
assert_raise(NoMethodError) {
ary.sample(random: Object.new)
}