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WINDOWS = false
shared_examples_for 'a Command' do
before :all do
setup_test_environment
end
before do
@connection = DataObjects::Connection.new(CONFIG.uri)
@command = @connection.create_command("INSERT INTO users (name) VALUES (?)")
@reader = @connection.create_command("SELECT code, name FROM widgets WHERE ad_description = ?")
end
after do
@connection.close
end
it { @command.should be_kind_of(DataObjects::Command) }
it { @command.should respond_to(:execute_non_query) }
describe 'execute_non_query' do
describe 'with an invalid statement' do
before do
@invalid_command = @connection.create_command("INSERT INTO non_existent_table (tester) VALUES (1)")
end
it 'should raise an error on an invalid query' do
expect { @invalid_command.execute_non_query }.to raise_error(DataObjects::SQLError)
end
it 'should raise an error with too few binding parameters' do
expect { @command.execute_non_query("Too", "Many") }.to raise_error(ArgumentError,
/Binding mismatch: 2 for 1/)
end
it 'should raise an error with too many binding parameters' do
expect { @command.execute_non_query }.to raise_error(ArgumentError,
/Binding mismatch: 0 for 1/)
end
end
describe 'with a valid statement' do
it 'should not raise an error with an explicit nil as parameter' do
expect { @command.execute_non_query(nil) }.not_to raise_error(ArgumentError)
end
end
describe 'with a valid statement and ? inside quotes' do
before do
@command_with_quotes = @connection.create_command("INSERT INTO users (name) VALUES ('will it work? ')")
end
it 'should not raise an error' do
expect { @command_with_quotes.execute_non_query }.not_to raise_error(ArgumentError)
end
end
end
it { @command.should respond_to(:execute_reader) }
describe 'execute_reader' do
describe 'with an invalid reader' do
before do
@invalid_reader = @connection.create_command("SELECT * FROM non_existent_widgets WHERE ad_description = ?")
end
it 'should raise an error on an invalid query' do
# FIXME JRuby (and MRI): Should this be an ArgumentError or DataObjects::SQLError?
expect { @invalid_reader.execute_reader }.to raise_error # (ArgumentError, DataObjects::SQLError)
end
it 'should raise an error with too few binding parameters' do
expect { @reader.execute_reader("Too", "Many") }.to raise_error(ArgumentError,
/Binding mismatch: 2 for 1/)
end
it 'should raise an error with too many binding parameters' do
expect { @reader.execute_reader }.to raise_error(ArgumentError,
/Binding mismatch: 0 for 1/)
end
end
describe 'with a valid reader' do
it 'should not raise an error with an explicit nil as parameter' do
expect { @reader.execute_reader(nil) }.not_to raise_error(ArgumentError)
end
end
describe 'with a valid reader and ? inside column alias' do
before do
@reader_with_quotes = @connection.create_command("SELECT code AS \"code?\", name FROM widgets WHERE ad_description = ?")
end
it 'should not raise an error' do
expect { @reader_with_quotes.execute_reader(nil) }.not_to raise_error(ArgumentError)
end
end
end
it { @command.should respond_to(:set_types) }
describe 'set_types' do
describe 'is invalid when used with a statement' do
before do
@command.set_types(String)
end
it 'should raise an error when types are set' do
expect { @command.execute_non_query }.to raise_error(ArgumentError)
end
end
describe 'with an invalid reader' do
it 'should raise an error with too few types' do
@reader.set_types(String)
expect { @reader.execute_reader("One parameter") }.to raise_error(ArgumentError,
/Field-count mismatch. Expected 1 fields, but the query yielded 2/)
end
it 'should raise an error with too many types' do
@reader.set_types(String, String, BigDecimal)
expect { @reader.execute_reader("One parameter") }.to raise_error(ArgumentError,
/Field-count mismatch. Expected 3 fields, but the query yielded 2/)
end
end
describe 'with a valid reader' do
it 'should not raise an error with correct number of types' do
@reader.set_types(String, String)
expect { @result = @reader.execute_reader('Buy this product now!') }.not_to raise_error(ArgumentError)
expect { @result.next! }.not_to raise_error(DataObjects::DataError)
expect { @result.values }.not_to raise_error(DataObjects::DataError)
@result.close
end
it 'should also support old style array argument types' do
@reader.set_types([String, String])
expect { @result = @reader.execute_reader('Buy this product now!') }.not_to raise_error(ArgumentError)
expect { @result.next! }.not_to raise_error(DataObjects::DataError)
expect { @result.values }.not_to raise_error(DataObjects::DataError)
@result.close
end
it 'should allow subtype types' do
class MyString < String; end
@reader.set_types(MyString, String)
expect { @result = @reader.execute_reader('Buy this product now!') }.not_to raise_error(ArgumentError)
expect { @result.next! }.not_to raise_error(DataObjects::DataError)
expect { @result.values }.not_to raise_error(DataObjects::DataError)
@result.close
end
end
end
it { @command.should respond_to(:to_s) }
describe 'to_s' do
end
end
shared_examples_for 'a Command with async' do
before :all do
setup_test_environment
end
describe 'running queries in parallel' do
before do
threads = []
@start = Time.now
4.times do |i|
threads << Thread.new do
begin
connection = DataObjects::Connection.new(CONFIG.uri)
command = connection.create_command(CONFIG.sleep)
if CONFIG.sleep =~ /^SELECT/i
reader = command.execute_reader
reader.next!
reader.close
else
result = command.execute_non_query
end
ensure
# Always make sure the connection gets released back into the pool.
connection.close
end
end
end
threads.each{|t| t.join }
@finish = Time.now
end
#Temporarily deactivate this example, as it currently fails with hurd-i386 and freebsd-i386
xit "should finish within 2 seconds" do
pending_if("Ruby on Windows doesn't support asynchronous operations", WINDOWS) do
(@finish - @start).should < 2
end
end
end
end
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