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Diffstat (limited to 'spec/ruby/core/hash/shared/update.rb')
-rw-r--r-- | spec/ruby/core/hash/shared/update.rb | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/spec/ruby/core/hash/shared/update.rb b/spec/ruby/core/hash/shared/update.rb new file mode 100644 index 0000000000..b1e3793028 --- /dev/null +++ b/spec/ruby/core/hash/shared/update.rb @@ -0,0 +1,59 @@ +describe :hash_update, shared: true do + it "adds the entries from other, overwriting duplicate keys. Returns self" do + h = { _1: 'a', _2: '3' } + h.send(@method, _1: '9', _9: 2).should equal(h) + h.should == { _1: "9", _2: "3", _9: 2 } + end + + it "sets any duplicate key to the value of block if passed a block" do + h1 = { a: 2, b: -1 } + h2 = { a: -2, c: 1 } + h1.send(@method, h2) { |k,x,y| 3.14 }.should equal(h1) + h1.should == { c: 1, b: -1, a: 3.14 } + + h1.send(@method, h1) { nil } + h1.should == { a: nil, b: nil, c: nil } + end + + it "tries to convert the passed argument to a hash using #to_hash" do + obj = mock('{1=>2}') + obj.should_receive(:to_hash).and_return({ 1 => 2 }) + { 3 => 4 }.send(@method, obj).should == { 1 => 2, 3 => 4 } + end + + it "does not call to_hash on hash subclasses" do + { 3 => 4 }.send(@method, HashSpecs::ToHashHash[1 => 2]).should == { 1 => 2, 3 => 4 } + end + + it "processes entries with same order as merge()" do + h = { 1 => 2, 3 => 4, 5 => 6, "x" => nil, nil => 5, [] => [] } + merge_bang_pairs = [] + merge_pairs = [] + h.merge(h) { |*arg| merge_pairs << arg } + h.send(@method, h) { |*arg| merge_bang_pairs << arg } + merge_bang_pairs.should == merge_pairs + end + + it "raises a RuntimeError on a frozen instance that is modified" do + lambda do + HashSpecs.frozen_hash.send(@method, 1 => 2) + end.should raise_error(RuntimeError) + end + + it "checks frozen status before coercing an object with #to_hash" do + obj = mock("to_hash frozen") + # This is necessary because mock cleanup code cannot run on the frozen + # object. + def obj.to_hash() raise Exception, "should not receive #to_hash" end + obj.freeze + + lambda { HashSpecs.frozen_hash.send(@method, obj) }.should raise_error(RuntimeError) + end + + # see redmine #1571 + it "raises a RuntimeError on a frozen instance that would not be modified" do + lambda do + HashSpecs.frozen_hash.send(@method, HashSpecs.empty_frozen_hash) + end.should raise_error(RuntimeError) + end +end |