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author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-04-28 19:50:06 +0000 |
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committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-04-28 19:50:06 +0000 |
commit | 4fbb9aa3cb6c31ec128bfb31f59efa66d66adba4 (patch) | |
tree | 84a654b260261fe172f2584f60b3ba93e59f841d /spec/ruby/core/array/bsearch_index_spec.rb | |
parent | b864bd05bff2a61d55b08deb92e969f9fa55e07c (diff) | |
download | ruby-4fbb9aa3cb6c31ec128bfb31f59efa66d66adba4.tar.gz |
Update to ruby/spec@6f38a82
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63293 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/ruby/core/array/bsearch_index_spec.rb')
-rw-r--r-- | spec/ruby/core/array/bsearch_index_spec.rb | 118 |
1 files changed, 58 insertions, 60 deletions
diff --git a/spec/ruby/core/array/bsearch_index_spec.rb b/spec/ruby/core/array/bsearch_index_spec.rb index 49c9d9ea34..a075d06ed3 100644 --- a/spec/ruby/core/array/bsearch_index_spec.rb +++ b/spec/ruby/core/array/bsearch_index_spec.rb @@ -1,86 +1,84 @@ require_relative '../../spec_helper' require_relative '../enumerable/shared/enumeratorized' -ruby_version_is "2.3" do - describe "Array#bsearch_index" do - context "when not passed a block" do - before :each do - @enum = [1, 2, 42, 100, 666].bsearch_index - end +describe "Array#bsearch_index" do + context "when not passed a block" do + before :each do + @enum = [1, 2, 42, 100, 666].bsearch_index + end - it "returns an Enumerator" do - @enum.should be_an_instance_of(Enumerator) - end + it "returns an Enumerator" do + @enum.should be_an_instance_of(Enumerator) + end - it "returns an Enumerator with unknown size" do - @enum.size.should be_nil - end + it "returns an Enumerator with unknown size" do + @enum.size.should be_nil + end - it "returns index of element when block condition is satisfied" do - @enum.each { |x| x >= 33 }.should == 2 - end + it "returns index of element when block condition is satisfied" do + @enum.each { |x| x >= 33 }.should == 2 end + end + + it "raises a TypeError when block returns a String" do + lambda { [1, 2, 3].bsearch_index { "not ok" } }.should raise_error(TypeError) + end - it "raises a TypeError when block returns a String" do - lambda { [1, 2, 3].bsearch_index { "not ok" } }.should raise_error(TypeError) + it "returns nil when block is empty" do + [1, 2, 3].bsearch_index {}.should be_nil + end + + context "minimum mode" do + before :each do + @array = [0, 4, 7, 10, 12] end - it "returns nil when block is empty" do - [1, 2, 3].bsearch_index {}.should be_nil + it "returns index of first element which satisfies the block" do + @array.bsearch_index { |x| x >= 4 }.should == 1 + @array.bsearch_index { |x| x >= 6 }.should == 2 + @array.bsearch_index { |x| x >= -1 }.should == 0 end - context "minimum mode" do - before :each do - @array = [0, 4, 7, 10, 12] - end + it "returns nil when block condition is never satisfied" do + @array.bsearch_index { false }.should be_nil + @array.bsearch_index { |x| x >= 100 }.should be_nil + end + end - it "returns index of first element which satisfies the block" do - @array.bsearch_index { |x| x >= 4 }.should == 1 - @array.bsearch_index { |x| x >= 6 }.should == 2 - @array.bsearch_index { |x| x >= -1 }.should == 0 - end + context "find any mode" do + before :each do + @array = [0, 4, 7, 10, 12] + end - it "returns nil when block condition is never satisfied" do - @array.bsearch_index { false }.should be_nil - @array.bsearch_index { |x| x >= 100 }.should be_nil - end + it "returns the index of any matched elements where element is between 4 <= x < 8" do + [1, 2].should include(@array.bsearch_index { |x| 1 - x / 4 }) end - context "find any mode" do - before :each do - @array = [0, 4, 7, 10, 12] - end + it "returns the index of any matched elements where element is between 8 <= x < 10" do + @array.bsearch_index { |x| 4 - x / 2 }.should be_nil + end - it "returns the index of any matched elements where element is between 4 <= x < 8" do - [1, 2].should include(@array.bsearch_index { |x| 1 - x / 4 }) - end + it "returns nil when block never returns 0" do + @array.bsearch_index { |x| 1 }.should be_nil + @array.bsearch_index { |x| -1 }.should be_nil + end - it "returns the index of any matched elements where element is between 8 <= x < 10" do - @array.bsearch_index { |x| 4 - x / 2 }.should be_nil - end + it "returns the middle element when block always returns zero" do + @array.bsearch_index { |x| 0 }.should == 2 + end - it "returns nil when block never returns 0" do - @array.bsearch_index { |x| 1 }.should be_nil - @array.bsearch_index { |x| -1 }.should be_nil + context "magnitude does not effect the result" do + it "returns the index of any matched elements where element is between 4n <= xn < 8n" do + [1, 2].should include(@array.bsearch_index { |x| (1 - x / 4) * (2**100) }) end - it "returns the middle element when block always returns zero" do - @array.bsearch_index { |x| 0 }.should == 2 + it "returns nil when block never returns 0" do + @array.bsearch_index { |x| 1 * (2**100) }.should be_nil + @array.bsearch_index { |x| (-1) * (2**100) }.should be_nil end - context "magnitude does not effect the result" do - it "returns the index of any matched elements where element is between 4n <= xn < 8n" do - [1, 2].should include(@array.bsearch_index { |x| (1 - x / 4) * (2**100) }) - end - - it "returns nil when block never returns 0" do - @array.bsearch_index { |x| 1 * (2**100) }.should be_nil - @array.bsearch_index { |x| (-1) * (2**100) }.should be_nil - end - - it "handles values from Bignum#coerce" do - [1, 2].should include(@array.bsearch_index { |x| (2**100).coerce((1 - x / 4) * (2**100)).first }) - end + it "handles values from Bignum#coerce" do + [1, 2].should include(@array.bsearch_index { |x| (2**100).coerce((1 - x / 4) * (2**100)).first }) end end end |