diff options
author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
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committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
commit | 1d15d5f08032acf1b7bceacbb450d617ff6e0931 (patch) | |
tree | a3785a79899302bc149e4a6e72f624ac27dc1f10 /spec/ruby/library/prime/prime_division_spec.rb | |
parent | 75bfc6440d595bf339007f4fb280fd4d743e89c1 (diff) |
Move spec/rubyspec to spec/ruby for consistency
* Other ruby implementations use the spec/ruby directory.
[Misc #13792] [ruby-core:82287]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/ruby/library/prime/prime_division_spec.rb')
-rw-r--r-- | spec/ruby/library/prime/prime_division_spec.rb | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/spec/ruby/library/prime/prime_division_spec.rb b/spec/ruby/library/prime/prime_division_spec.rb new file mode 100644 index 0000000000..faca8bda02 --- /dev/null +++ b/spec/ruby/library/prime/prime_division_spec.rb @@ -0,0 +1,25 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require 'prime' + +describe "Prime.prime_division" do + it "returns an array of a prime factor and a corresponding exponent" do + Prime.prime_division(2*3*5*7*11*13*17).should == + [[2,1], [3,1], [5,1], [7,1], [11,1], [13,1], [17,1]] + end + + it "returns an empty array for 1" do + Prime.prime_division(1).should == [] + end + + it "returns [[-1, 1]] for -1" do + Prime.prime_division(-1).should == [[-1, 1]] + end + + it "includes [[-1, 1]] in the divisors of a negative number" do + Prime.prime_division(-10).should include([-1, 1]) + end + + it "raises ZeroDivisionError for 0" do + lambda { Prime.prime_division(0) }.should raise_error(ZeroDivisionError) + end +end |