assertEquals("98.76", systemHelper.getProductVersion());
    }

    public void test_getEnvMap() {
        assertNotNull(new SystemHelper().getEnvMap());
    }

    public void test_encodeUrlFilter() {
        String path = null;
        assertNull(systemHelper.encodeUrlFilter(path));

        path = "abc";
        assertEquals(path, systemHelper.encodeUrlFilter(path));

        path = "あいう";