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author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
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committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
commit | 1d15d5f08032acf1b7bceacbb450d617ff6e0931 (patch) | |
tree | a3785a79899302bc149e4a6e72f624ac27dc1f10 /spec/ruby/core/struct/dig_spec.rb | |
parent | 75bfc6440d595bf339007f4fb280fd4d743e89c1 (diff) | |
download | ruby-1d15d5f08032acf1b7bceacbb450d617ff6e0931.tar.gz |
Move spec/rubyspec to spec/ruby for consistency
* Other ruby implementations use the spec/ruby directory.
[Misc #13792] [ruby-core:82287]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/ruby/core/struct/dig_spec.rb')
-rw-r--r-- | spec/ruby/core/struct/dig_spec.rb | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/spec/ruby/core/struct/dig_spec.rb b/spec/ruby/core/struct/dig_spec.rb new file mode 100644 index 0000000000..c222eec9e4 --- /dev/null +++ b/spec/ruby/core/struct/dig_spec.rb @@ -0,0 +1,44 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +ruby_version_is "2.3" do + describe "Struct#dig" do + before(:each) do + @klass = Struct.new(:a) + @instance = @klass.new(@klass.new({ b: [1, 2, 3] })) + end + + it "returns the nested value specified by the sequence of keys" do + @instance.dig(:a, :a).should == { b: [1, 2, 3] } + end + + it "returns the nested value specified if the sequence includes an index" do + @instance.dig(:a, :a, :b, 0).should == 1 + end + + it "returns nil if any intermediate step is nil" do + @instance.dig(:b, 0).should == nil + end + + it "raises a TypeError if any intermediate step does not respond to #dig" do + instance = @klass.new(1) + lambda { + instance.dig(:a, 3) + }.should raise_error(TypeError) + end + + it "raises an ArgumentError if no arguments provided" do + lambda { @instance.dig }.should raise_error(ArgumentError) + end + + it "calls #dig on any intermediate step with the rest of the sequence as arguments" do + obj = Object.new + instance = @klass.new(obj) + + def obj.dig(*args) + {dug: args} + end + + instance.dig(:a, :bar, :baz).should == { dug: [:bar, :baz] } + end + end +end |