Enterprise Library Test Guide - Willy .Net

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Enterprise Library Test Guide
Design test case Implemented? Feature that implements design
Verify that the application
block supports the parameter
discovery feature.
Yes
The Database base class implements the
DiscoverParameters method that dynamically
discovers the parameter types.
Verify that the ability to create
the application block’s
domain objects from configuration
data follows the
Dependency Injection pattern.
Verify that the application
block can retrieve configuration
data from different sources,
such as an application
configuration file, a database,
or from memory.
Verify that the application
block can manage database
connection.
Verify that the instrumentation
is implemented with
loosely coupled events.
Verify that the design addresses
situations that can
cause exceptions and that
the application block logs
the exceptions through the
instrumentation.
Yes
Yes
Yes
Yes
Yes
The DatabaseProviderFactory class
derives from the NameTypeFactoryBase
class, which takes the configuration source
as input, creates the domain object, and
injects the relevant configuration data into
the domain object.
The DatabaseProviderFactory class has
a constructor that accepts a configuration
source as an input parameter.
The application block closes the database
connections after it is finished with them.
For example, the implementation of the
ExecuteNonQuery method includes a using
statement. The using statement obtains
resources, executes a statement, and
disposes of the resources. In this case, the
resource is the database connection.
In the case of the ExecuteReader method,
the application block uses the Command-
Behavior.CloseConnection method to close
the connection after the reader closes.
The methods in the DataInstrumentation-
Provider class that fire the events bind to
the methods in the DataInstrumentation-
Listener class at run time.
For example, the Database class includes
the InstrumentationProvider property.
This property retrieves the instrumentation
provider that defines the events for the
database provider. The provider logs the
events to WMI and the event log.
After the code is implemented, you can review it to see if it satisfies its test cases.
Table 4 lists the results of a code review for the Data Access Application Block.