diff options
Diffstat (limited to 'spec/rubyspec/core/array/max_spec.rb')
-rw-r--r-- | spec/rubyspec/core/array/max_spec.rb | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/spec/rubyspec/core/array/max_spec.rb b/spec/rubyspec/core/array/max_spec.rb deleted file mode 100644 index cf6a48c2e3..0000000000 --- a/spec/rubyspec/core/array/max_spec.rb +++ /dev/null @@ -1,112 +0,0 @@ -require File.expand_path('../../../spec_helper', __FILE__) - -describe "Array#max" do - it "returns nil with no values" do - [].max.should == nil - end - - it "returns only element in one element array" do - [1].max.should == 1 - end - - it "returns largest value with multiple elements" do - [1,2].max.should == 2 - [2,1].max.should == 2 - end - - describe "given a block with one argument" do - it "yields in turn the last length-1 values from the array" do - ary = [] - result = [1,2,3,4,5].max {|x| ary << x; x} - - ary.should == [2,3,4,5] - result.should == 5 - end - end -end - -# From Enumerable#max, copied for better readability -describe "Array#max" do - before :each do - @a = [2, 4, 6, 8, 10] - - @e_strs = ["333", "22", "666666", "1", "55555", "1010101010"] - @e_ints = [333, 22, 666666, 55555, 1010101010] - end - - it "max should return the maximum element" do - [18, 42].max.should == 42 - [2, 5, 3, 6, 1, 4].max.should == 6 - end - - it "returns the maximum element (basics cases)" do - [55].max.should == 55 - - [11,99].max.should == 99 - [99,11].max.should == 99 - [2, 33, 4, 11].max.should == 33 - - [1,2,3,4,5].max.should == 5 - [5,4,3,2,1].max.should == 5 - [1,4,3,5,2].max.should == 5 - [5,5,5,5,5].max.should == 5 - - ["aa","tt"].max.should == "tt" - ["tt","aa"].max.should == "tt" - ["2","33","4","11"].max.should == "4" - - @e_strs.max.should == "666666" - @e_ints.max.should == 1010101010 - end - - it "returns nil for an empty Enumerable" do - [].max.should == nil - end - - it "raises a NoMethodError for elements without #<=>" do - lambda do - [BasicObject.new, BasicObject.new].max - end.should raise_error(NoMethodError) - end - - it "raises an ArgumentError for incomparable elements" do - lambda do - [11,"22"].max - end.should raise_error(ArgumentError) - lambda do - [11,12,22,33].max{|a, b| nil} - end.should raise_error(ArgumentError) - end - - it "returns the maximum element (with block)" do - # with a block - ["2","33","4","11"].max {|a,b| a <=> b }.should == "4" - [ 2 , 33 , 4 , 11 ].max {|a,b| a <=> b }.should == 33 - - ["2","33","4","11"].max {|a,b| b <=> a }.should == "11" - [ 2 , 33 , 4 , 11 ].max {|a,b| b <=> a }.should == 2 - - @e_strs.max {|a,b| a.length <=> b.length }.should == "1010101010" - - @e_strs.max {|a,b| a <=> b }.should == "666666" - @e_strs.max {|a,b| a.to_i <=> b.to_i }.should == "1010101010" - - @e_ints.max {|a,b| a <=> b }.should == 1010101010 - @e_ints.max {|a,b| a.to_s <=> b.to_s }.should == 666666 - end - - it "returns the minimum for enumerables that contain nils" do - arr = [nil, nil, true] - arr.max { |a, b| - x = a.nil? ? 1 : a ? 0 : -1 - y = b.nil? ? 1 : b ? 0 : -1 - x <=> y - }.should == nil - end - - it "gathers whole arrays as elements when each yields multiple" do - multi = [[1,2], [3,4,5], [6,7,8,9]] - multi.max.should == [6, 7, 8, 9] - end - -end |