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# Test facets/enumerable/collate.rb require 'facets/enumerable/collate.rb' require 'test/unit' class TestEnumerableCollate < Test::Unit::TestCase def test_collate_hash_return a = { :a => 1, :b => 2, :c => 3 } e = { :a => 2, :b => 3, :c => 4 } assert_equal( e, a.collate{ |k,v| {k => v+1} } ) end def test_collate_hash_of_array a = { :a => [1,2], :b => [2,3], :c => [3,4] } e = { :a => 2, :b => 6, :c => 12 } assert_equal( e, a.collate{ |k,v| [k, v[0]*v[1] ] } ) end def test_collate_array_of_array a = [ [1,2], [2,3], [3,4] ] e = { [1,2] => 2, [2,3] => 6, [3,4] => 12 } assert_equal( e, a.collate{ |a| [a, a[0]*a[1] ] } ) end def test_collate_squares numbers = (1..3) squares = numbers.collate{ |n| [n, n*n] } assert_equal( {1=>1, 2=>4, 3=>9}, squares ) end def test_collate_roots numbers = (1..3) sq_roots = numbers.collate{ |n| [n*n, n] } assert_equal( {1=>1, 4=>2, 9=>3}, sq_roots ) end def test_collate_inplace! a = { :a => 1, :b => 2, :c => 3 } e = { :a => 2, :b => 3, :c => 4 } a.collate!{ |k,v| { k => v+1 } } assert_equal( e, a ) end def test_collate_inplace_again! h = {:a=>1,:b=>2,:c=>3} h.collate!{ |k,v| [v, v*v] } assert_equal( {1=>1, 2=>4, 3=>9}, h ) end end
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
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facets-2.1.3 | test/unit/enumerable/test_collate.rb |