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Contents
if !System.get_env("EXERCISM_TEST_EXAMPLES") do
Code.load_file("grains.exs", __DIR__)
end
ExUnit.start
ExUnit.configure exclude: :pending, trace: true
# NOTE: :math.pow/2 doesn't do what you'd expect:
# `:math.pow(2, 64) == :math.pow(2, 64) - 1` is true.
#
# It's best to avoid functions operating on floating point numbers for very
# large numbers.
defmodule GrainsTest do
use ExUnit.Case
# @tag :pending
test "square 1" do
assert Grains.square(1) === 1
end
@tag :pending
test "square 2" do
assert Grains.square(2) === 2
end
@tag :pending
test "square 3" do
assert Grains.square(3) === 4
end
@tag :pending
test "square 4" do
assert Grains.square(4) === 8
end
@tag :pending
test "square 16" do
assert Grains.square(16) === 32768
end
@tag :pending
test "square 32" do
assert Grains.square(32) === 2147483648
end
@tag :pending
test "square 64" do
assert Grains.square(64) === 9223372036854775808
end
@tag :pending
test "total grains" do
assert Grains.total === 18446744073709551615
end
end
Version data entries
88 entries across 88 versions & 1 rubygems