private void assertExtensionNotInstalled(String name, String version) {
		Set<ExtensionDetails> extensions = ExtensionUtils.getInstalledExtensions();
		Optional<ExtensionDetails> match = extensions.stream()
				.filter(e -> e.getName().equals(name) && e.getVersion().equals(version))
				.findFirst();
		assertFalse("Extension should not be installed: '" + name + "'", match.isPresent());
	}
Tests for the {@link ExtensionInstaller} class.
Ghidra/Framework/Project/src/test/java/ghidra/framework/project/extensions/ExtensionInstallerTest.java