@Before
	public void setup() throws IOException {

		// to see tracing; must set the 'console' appender to trace to see these
		// Configurator.setLevel("ghidra.framework.project.extensions", Level.TRACE);

		setErrorGUIEnabled(false);

		// clear static caching of extensions
		ExtensionUtils.clearCache();

		appLayout = Application.getApplicationLayout();

		FileUtilities.deleteDir(appLayout.getExtensionArchiveDir().getFile(false));
		for (ResourceFile installDir : appLayout.getExtensionInstallationDirs()) {
			FileUtilities.deleteDir(installDir.getFile(false));
		}

		createExtensionDirs();
	}
Tests for the {@link ExtensionInstaller} class.
Ghidra/Framework/Project/src/test/java/ghidra/framework/project/extensions/ExtensionInstallerTest.java