<a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>

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Base class for all effects. An "effect" is a particular type of styling to apply to the selected text in a rich text editor. Most of them are wrappers

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To work on unit tests, switch the Test Artifact in the Build Variants view.

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Lazy initialization holder for HTML parser. This class will a) be preloaded by the zygote, or b) not loaded until absolutely necessary.

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A Selection stands for selected text from a start to an end point. Don't mix it up with android.text.Selection which has a completely different purpos

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