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Diffstat (limited to 'spec/rubyspec/core/hash/dig_spec.rb')
-rw-r--r-- | spec/rubyspec/core/hash/dig_spec.rb | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/spec/rubyspec/core/hash/dig_spec.rb b/spec/rubyspec/core/hash/dig_spec.rb deleted file mode 100644 index 237c407e91..0000000000 --- a/spec/rubyspec/core/hash/dig_spec.rb +++ /dev/null @@ -1,68 +0,0 @@ -require File.expand_path('../../../spec_helper', __FILE__) - -ruby_version_is '2.3' do - describe "Hash#dig" do - - it "returns #[] with one arg" do - h = { 0 => false, a: 1 } - h.dig(:a).should == 1 - h.dig(0).should be_false - h.dig(1).should be_nil - end - - it "returns the nested value specified by the sequence of keys" do - h = { foo: { bar: { baz: 1 } } } - h.dig(:foo, :bar, :baz).should == 1 - h.dig(:foo, :bar, :nope).should be_nil - h.dig(:foo, :baz).should be_nil - h.dig(:bar, :baz, :foo).should be_nil - end - - it "returns the nested value specified if the sequence includes an index" do - h = { foo: [1, 2, 3] } - h.dig(:foo, 2).should == 3 - end - - it "returns nil if any intermediate step is nil" do - h = { foo: { bar: { baz: 1 } } } - h.dig(:foo, :zot, :xyz).should == nil - end - - it "raises an ArgumentError if no arguments provided" do - lambda { { the: 'borg' }.dig() }.should raise_error(ArgumentError) - end - - it "handles type-mixed deep digging" do - h = {} - h[:foo] = [ { bar: [ 1 ] }, [ obj = Object.new, 'str' ] ] - def obj.dig(*args); [ 42 ] end - - h.dig(:foo, 0, :bar).should == [ 1 ] - h.dig(:foo, 0, :bar, 0).should == 1 - h.dig(:foo, 1, 1).should == 'str' - # MRI does not recurse values returned from `obj.dig` - h.dig(:foo, 1, 0, 0).should == [ 42 ] - h.dig(:foo, 1, 0, 0, 10).should == [ 42 ] - end - - it "raises TypeError if an intermediate element does not respond to #dig" do - h = {} - h[:foo] = [ { bar: [ 1 ] }, [ nil, 'str' ] ] - lambda { h.dig(:foo, 0, :bar, 0, 0) }.should raise_error(TypeError) - lambda { h.dig(:foo, 1, 1, 0) }.should raise_error(TypeError) - end - - it "calls #dig on the result of #[] with the remaining arguments" do - h = { foo: { bar: { baz: 42 } } } - h[:foo].should_receive(:dig).with(:bar, :baz).and_return(42) - h.dig(:foo, :bar, :baz).should == 42 - end - - it "respects Hash's default" do - default = {bar: 42} - h = Hash.new(default) - h.dig(:foo).should equal default - h.dig(:foo, :bar).should == 42 - end - end -end |