@Test
    public void executeSelectorDataIsNullTest() {
        BaseDataCache.getInstance().cachePluginData(pluginData);
        BaseDataCache.getInstance().cacheSelectData(selectorData);
        StepVerifier.create(testShenyuWasmPlugin.execute(exchange, shenyuPluginChain)).expectSubscription().verifyComplete();
        verify(shenyuPluginChain).execute(exchange);
    }
The selector data is null test.
shenyu-plugin/shenyu-plugin-wasm-base/src/test/java/org/apache/shenyu/plugin/wasm/base/AbstractShenyuWasmPluginTest.java