private File createExternalExtensionInFolder() throws Exception {
		File externalFolder = createTempDirectory(BUILD_FOLDER_NAME);
		return doCreateExternalExtensionInFolder(externalFolder, TEST_EXT_NAME);
	}
Tests for the {@link ExtensionInstaller} class.
Ghidra/Framework/Project/src/test/java/ghidra/framework/project/extensions/ExtensionInstallerTest.java