O'Reilly - Java™ Extreme Programming Cookbook by Eric M. Burke Brian M. Coyner

Author:Eric M. Burke, Brian M. Coyner [Eric M. Burke, Brian M. Coyner]
Language: fra
Format: epub
Tags: Informatique
Publisher: O'Reilly
Published: 2003-04-01T15:33:43+00:00

this.acctTableModel.addTableModelListener(mockListener);

this.acctTableModel.addAccount(new Account(

Account.CHECKING, "12345", 100.50));

mockListener.verify( );

}

The modified unit test begins by setting the expected event count on the improved mock object. The mock object will fail the test as soon as it receives too many events. This is useful because it lets you see test failures as soon as the extra events are delivered, making diagnosis easier.

The test also registers a specific expected event. Once the account is added to the table model, the test calls verify( ), which tests against the expected event. Example 6-6 shows the new, improved mock object.

Example 6-6. Self-validating mock listener

package com.oreilly.mock;

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