Sha256: 95963287b166d40fa26973dccc27ceaddf37e9daba1925cceed7794ce02efd63
Contents?: true
Size: 983 Bytes
Versions: 70
Compression:
Stored size: 983 Bytes
Contents
describe "Numeric#**" do
it "returns self raised to the given power" do
(2 ** 0).should == 1
(2 ** 1).should == 2
(2 ** 2).should == 4
(2 ** 40).should == 1099511627776
end
it "overflows the answer to a bignum transparantly" do
(2 ** 29).should == 536870912
(2 ** 30).should == 1073741824
(2 ** 31).should == 2147483648
(2 ** 32).should == 4294967296
(2 ** 61).should == 2305843009213693952
(2 ** 62).should == 4611686018427387904
(2 ** 63).should == 9223372036854775808
(2 ** 64).should == 18446744073709551616
end
it "raises negative numbers to the given power" do
((-2) ** 29).should == -536870912
((-2) ** 30).should == 1073741824
((-2) ** 31).should == -2147483648
((-2) ** 32).should == 4294967296
((-2) ** 61).should == -2305843009213693952
((-2) ** 62).should == 4611686018427387904
((-2) ** 63).should == -9223372036854775808
((-2) ** 64).should == 18446744073709551616
end
end
Version data entries
70 entries across 70 versions & 3 rubygems