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/real_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/real_spec.rb')
| -rw-r--r-- | spec/ruby/library/matrix/real_spec.rb | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/spec/ruby/library/matrix/real_spec.rb b/spec/ruby/library/matrix/real_spec.rb new file mode 100644 index 0000000000..98da7f8a7c --- /dev/null +++ b/spec/ruby/library/matrix/real_spec.rb @@ -0,0 +1,42 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) +require 'matrix' + +describe "Matrix#real?" do + it "returns true for matrices with all real entries" do + Matrix[ [1, 2], [3, 4] ].real?.should be_true + Matrix[ [1.9, 2], [3, 4] ].real?.should be_true + end + + it "returns true for empty matrices" do + Matrix.empty.real?.should be_true + end + + it "returns false if one element is a Complex" do + Matrix[ [Complex(1,1), 2], [3, 4] ].real?.should be_false + end + + conflicts_with :CMath do + it "returns false if one element is a Complex whose imaginary part is 0" do + Matrix[ [Complex(1,0), 2], [3, 4] ].real?.should be_false + end + end +end + +describe "Matrix#real" do + it "returns a matrix with the real part of the elements of the receiver" do + Matrix[ [1, 2], [3, 4] ].real.should == Matrix[ [1, 2], [3, 4] ] + Matrix[ [1.9, Complex(1,1)], [Complex(-0.42, 0), 4] ].real.should == Matrix[ [1.9, 1], [-0.42, 4] ] + end + + it "returns empty matrices on the same size if empty" do + Matrix.empty(0, 3).real.should == Matrix.empty(0, 3) + Matrix.empty(3, 0).real.should == Matrix.empty(3, 0) + end + + describe "for a subclass of Matrix" do + it "returns an instance of that subclass" do + MatrixSub.ins.real.should be_an_instance_of(MatrixSub) + end + end +end |