gitlab-org--gitlab-foss/spec/lib/serializers/json_spec.rb

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require 'fast_spec_helper'
describe Serializers::JSON do
describe '.dump' do
let(:obj) { { key: "value" } }
subject { described_class.dump(obj) }
context 'when MySQL is used' do
before do
allow(Gitlab::Database).to receive(:adapter_name) { 'mysql2' }
end
it 'encodes as string' do
is_expected.to eq('{"key":"value"}')
end
end
context 'when PostgreSQL is used' do
before do
allow(Gitlab::Database).to receive(:adapter_name) { 'postgresql' }
end
it 'returns a hash' do
is_expected.to eq(obj)
end
end
end
describe '.load' do
let(:data_string) { '{"key":"value","variables":[{"key":"VAR1","value":"VALUE1"}]}' }
let(:data_hash) { JSON.parse(data_string) }
shared_examples 'having consistent accessor' do
it 'allows to access with symbols' do
expect(subject[:key]).to eq('value')
expect(subject[:variables].first[:key]).to eq('VAR1')
end
it 'allows to access with strings' do
expect(subject["key"]).to eq('value')
expect(subject["variables"].first["key"]).to eq('VAR1')
end
end
context 'when MySQL is used' do
before do
allow(Gitlab::Database).to receive(:adapter_name) { 'mysql2' }
end
context 'when loading a string' do
subject { described_class.load(data_string) }
it 'decodes a string' do
is_expected.to be_a(Hash)
end
it_behaves_like 'having consistent accessor'
end
context 'when loading a different type' do
subject { described_class.load({ key: 'hash' }) }
it 'raises an exception' do
expect { subject }.to raise_error(TypeError)
end
end
context 'when loading a nil' do
subject { described_class.load(nil) }
it 'returns nil' do
is_expected.to be_nil
end
end
end
context 'when PostgreSQL is used' do
before do
allow(Gitlab::Database).to receive(:adapter_name) { 'postgresql' }
end
context 'when loading a hash' do
subject { described_class.load(data_hash) }
it 'decodes a string' do
is_expected.to be_a(Hash)
end
it_behaves_like 'having consistent accessor'
end
context 'when loading a nil' do
subject { described_class.load(nil) }
it 'returns nil' do
is_expected.to be_nil
end
end
end
end
end