src/ruby/spec/metadata_spec.rb

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require 'grpc'

describe GRPC::Core::Metadata do

  describe '#new' do
    it 'should create instances' do
      expect { GRPC::Core::Metadata.new('a key', 'a value') }.to_not raise_error
    end
  end

  describe '#key' do
    md = GRPC::Core::Metadata.new('a key', 'a value')
    it 'should be the constructor value' do
      expect(md.key).to eq('a key')
    end
  end

  describe '#value' do
    md = GRPC::Core::Metadata.new('a key', 'a value')
    it 'should be the constuctor value' do
      expect(md.value).to eq('a value')
    end
  end

  describe '#dup' do
    it 'should create a copy that returns the correct key' do
      md = GRPC::Core::Metadata.new('a key', 'a value')
      expect(md.dup.key).to eq('a key')
    end

    it 'should create a copy that returns the correct value' do
      md = GRPC::Core::Metadata.new('a key', 'a value')
      expect(md.dup.value).to eq('a value')
    end
  end

end