diff options
Diffstat (limited to 'spec/rubyspec/library/matrix/element_reference_spec.rb')
| -rw-r--r-- | spec/rubyspec/library/matrix/element_reference_spec.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/spec/rubyspec/library/matrix/element_reference_spec.rb b/spec/rubyspec/library/matrix/element_reference_spec.rb new file mode 100644 index 0000000000..f4f63c0f65 --- /dev/null +++ b/spec/rubyspec/library/matrix/element_reference_spec.rb @@ -0,0 +1,23 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require 'matrix' + +describe "Matrix#[]" do + + before :all do + @m = Matrix[[0, 1, 2], [3, 4, 5], [6, 7, 8], [9, 10, 11]] + end + + it "returns element at (i, j)" do + (0..3).each do |i| + (0..2).each do |j| + @m[i, j].should == (i * 3) + j + end + end + end + + it "returns nil for an invalid index pair" do + @m[8,1].should be_nil + @m[1,8].should be_nil + end + +end |