14     AdditionalData ad{data};  in TEST()  local
16     EXPECT_TRUE(ad.getValue("KEY1"));  in TEST()
17     EXPECT_EQ(*(ad.getValue("KEY1")), "VALUE1");  in TEST()
19     EXPECT_TRUE(ad.getValue("KEY2"));  in TEST()
20     EXPECT_EQ(*(ad.getValue("KEY2")), "VALUE2");  in TEST()
22     EXPECT_FALSE(ad.getValue("x"));  in TEST()
24     auto value3 = ad.getValue("KEY3");  in TEST()
28     EXPECT_FALSE(ad.getValue("HELLOWORLD"));  in TEST()
29     EXPECT_FALSE(ad.getValue("VALUE5"));  in TEST()
31     auto json = ad.toJSON();  in TEST()
35     ad.remove("KEY1");  in TEST()
36     EXPECT_FALSE(ad.getValue("KEY1"));  in TEST()
41     AdditionalData ad;  in TEST()  local
43     ad.add("KEY1", "VALUE1");  in TEST()
44     EXPECT_EQ(*(ad.getValue("KEY1")), "VALUE1");  in TEST()
46     ad.add("KEY2", "VALUE2");  in TEST()
47     EXPECT_EQ(*(ad.getValue("KEY2")), "VALUE2");  in TEST()
52     EXPECT_EQ(expected, ad.getData());  in TEST()