@Test
	public void testIsExtension_Zip_ValidZip() throws IOException {
		File zipFile1 = createExtensionZip(TEST_EXT_NAME);
		assertTrue(ExtensionUtils.isExtension(zipFile1));
	}
Tests for the {@link ExtensionInstaller} class.
Ghidra/Framework/Project/src/test/java/ghidra/framework/project/extensions/ExtensionInstallerTest.java