src/ruby/spec/credentials_spec.rb

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require 'grpc'

def load_test_certs
  test_root = File.join(File.dirname(__FILE__), 'testdata')
  files = ['ca.pem', 'server1.pem', 'server1.key']
  files.map { |f| File.open(File.join(test_root, f)).read }
end

Credentials = GRPC::Core::Credentials

describe Credentials do
  describe '#new' do
    it 'can be constructed with fake inputs' do
      expect { Credentials.new('root_certs', 'key', 'cert') }.not_to raise_error
    end

    it 'it can be constructed using specific test certificates' do
      certs = load_test_certs
      expect { Credentials.new(*certs) }.not_to raise_error
    end

    it 'can be constructed with server roots certs only' do
      root_cert, _, _ = load_test_certs
      expect { Credentials.new(root_cert) }.not_to raise_error
    end

    it 'cannot be constructed with a nil server roots' do
      _, client_key, client_chain = load_test_certs
      blk = proc { Credentials.new(nil, client_key, client_chain) }
      expect(&blk).to raise_error
    end
  end

  describe '#compose' do
    it 'cannot be completed OK with 2 SSL creds' do
      certs = load_test_certs
      cred1 = Credentials.new(*certs)
      cred2 = Credentials.new(*certs)
      expect { cred1.compose(cred2) }.to raise_error
    end
  end
end