summaryrefslogtreecommitdiff
path: root/spec/ruby/library/matrix/row_vectors_spec.rb
blob: 6f99c439a67bb00d4e6879f0a8999b219a67cfa2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
require_relative '../../spec_helper'
require 'matrix'

describe "Matrix#row_vectors" do

  before :each do
    @vectors = Matrix[ [1,2], [3,4] ].row_vectors
  end

  it "returns an Array" do
    Matrix[ [1,2], [3,4] ].row_vectors.should be_an_instance_of(Array)
  end

  it "returns an Array of Vectors" do
    @vectors.all? {|v| v.should be_an_instance_of(Vector)}
  end

  it "returns each row as a Vector" do
    @vectors.should == [Vector[1,2], Vector[3,4]]
  end

  it "returns an empty Array for empty matrices" do
    Matrix[].row_vectors.should == []
    Matrix[ [] ].row_vectors.should == [ Vector[] ]
  end
end