File: trace.rb

package info (click to toggle)
ruby3.1 3.1.2-7%2Bdeb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 132,892 kB
  • sloc: ruby: 1,154,753; ansic: 736,782; yacc: 46,445; pascal: 10,401; sh: 3,931; cpp: 1,158; python: 838; makefile: 787; asm: 462; javascript: 382; lisp: 97; sed: 94; perl: 62; awk: 36; xml: 4
file content (12 lines) | stat: -rw-r--r-- 339 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
 
require 'matrix'

describe :trace, shared: true do
  it "returns the sum of diagonal elements in a square Matrix" do
    Matrix[[7,6], [3,9]].trace.should == 16
  end

  it "returns the sum of diagonal elements in a rectangular Matrix" do
    ->{ Matrix[[1,2,3], [4,5,6]].trace}.should raise_error(Matrix::ErrDimensionMismatch)
  end

end