diff options
| author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
|---|---|---|
| committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
| commit | 1d15d5f08032acf1b7bceacbb450d617ff6e0931 (patch) | |
| tree | a3785a79899302bc149e4a6e72f624ac27dc1f10 /spec/ruby/library/matrix/zero_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/matrix/zero_spec.rb')
| -rw-r--r-- | spec/ruby/library/matrix/zero_spec.rb | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/spec/ruby/library/matrix/zero_spec.rb b/spec/ruby/library/matrix/zero_spec.rb new file mode 100644 index 0000000000..f83d29e837 --- /dev/null +++ b/spec/ruby/library/matrix/zero_spec.rb @@ -0,0 +1,52 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) +require 'matrix' + +describe "Matrix.zero" do + it "returns an object of type Matrix" do + Matrix.zero(3).should be_kind_of(Matrix) + end + + it "creates a n x n matrix" do + m3 = Matrix.zero(3) + m3.row_size.should == 3 + m3.column_size.should == 3 + + m8 = Matrix.zero(8) + m8.row_size.should == 8 + m8.column_size.should == 8 + end + + it "initializes all cells to 0" do + size = 10 + m = Matrix.zero(size) + + (0...size).each do |i| + (0...size).each do |j| + m[i, j].should == 0 + end + end + end + + describe "for a subclass of Matrix" do + it "returns an instance of that subclass" do + MatrixSub.zero(3).should be_an_instance_of(MatrixSub) + end + end +end + +describe "Matrix.zero?" do + it "returns true for empty matrices" do + Matrix.empty.zero?.should == true + Matrix.empty(3,0).zero?.should == true + Matrix.empty(0,3).zero?.should == true + end + + it "returns true for matrices with zero entries" do + Matrix.zero(2,3).zero?.should == true + end + + it "returns false for matrices with non zero entries" do + Matrix[[1]].zero?.should == false + end +end |