Tag Archives: flex

Debugging Unit Tests without Flash Builder Premium

If you have a Flash Builder Standard license, chances are good that you’re lamenting the lack of FlexUnit support. You can run your tests from the command line but then you lose debugging and an integrated results display. You could add a second Application to your project to embed a test runner but due to an annoying bug in Flash Builder, this application file needs to be in your main source folder or else it can’t be added as a run configuration. I set out to find a new solution with the following in mind:

  • I want all test-related code to stay in the test sources folder. (src/test/flex since I’m using Maven)
  • I want a visual test runner to display which tests/failed passed, give timing information, stack traces, etc.
  • The tests must work as-is when committed and run through flexmojos on a CI machine (e.g. Jenkins)
  • Debugging support through Flash Builder must be available when running the tests locally.

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Flex: Customizing data tip location and behavior in a LineChart

The Flex LineChart control has a feature to display pop-up “data tips” when the user hovers near a data point in the chart. These are basically just tooltips with information about the x and y values at the given point. Unfortunately, Flex offers little in the way of customizing when and how these data tips display. For example, the following is a LineChart using the horizontal-step style:

LineChart with circled data points

In a horizontal step chart, a line is drawn horizontally to the right of each data point, and vertically at each change in value. The circles around each data point indicate the area where hovering the mouse would produce a data tip. No other areas on the chart produce a data tip and this can be slightly confusing. The user might wonder why they can’t hover at other bends in the line to see the current value. Other users might want to simply hover anywhere along the line.

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