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-rw-r--r--spec/ruby/core/hash/shared/update.rb59
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
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+++ b/spec/ruby/core/hash/shared/update.rb
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+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