@Before
	public void setUp() throws Exception {

		env = new TestEnv();
		program = buildProgram();
		context = program.getProgramContext();
		pairBitRegister = program.getProgramContext().getRegister("PAIR_INSTRUCTION_FLAG");
	}
Analyzer Test for Mips Pre-Analyzer
Ghidra/Processors/MIPS/src/test.slow/java/ghidra/app/plugin/core/analysis/MipsPreAnalyzerTest.java