Poniższe polecania (10-15) sprawdzają działanie funkcji create, addStation i addValue, wszystkie mapy wyglądają zgodnie z oczekiwaniami

10> P = pollution:createMonitor().
#{}
11> P1 = pollution:addStation("Aleja Slowackiego", {50.2345, 18.3445}, P).
#{{station,"Aleja Slowackiego",{50.2345,18.3445}} => #{}}
12> P2 = pollution:addValue({50.2345, 18.3445}, calendar:local_time(), "PM10", 59, P1).
#{{station,"Aleja Slowackiego",{50.2345,18.3445}} =>
      #{{measurement,{{2020,4,7},{0,5,18}},"PM10"} => 59}}
13> P3 = pollution:addValue("Aleja Slowackiego", calendar:local_time(), "PM2,5", 113, P2).
#{{station,"Aleja Slowackiego",{50.2345,18.3445}} =>
      #{{measurement,{{2020,4,7},{0,5,18}},"PM10"} => 59,
        {measurement,{{2020,4,7},{0,5,20}},"PM2,5"} => 113}}
14> P4 = pollution:addStation("Muzeum Narodowe", {54.37, 23.84}, P3).
#{{station,"Aleja Slowackiego",{50.2345,18.3445}} =>
      #{{measurement,{{2020,4,7},{0,5,18}},"PM10"} => 59,
        {measurement,{{2020,4,7},{0,5,20}},"PM2,5"} => 113},
  {station,"Muzeum Narodowe",{54.37,23.84}} => #{}}
15> P5 = pollution:addValue("Muzeum Narodowe", calendar:local_time(),"PM10", 63, P4).
#{{station,"Aleja Slowackiego",{50.2345,18.3445}} =>
      #{{measurement,{{2020,4,7},{0,5,18}},"PM10"} => 59,
        {measurement,{{2020,4,7},{0,5,20}},"PM2,5"} => 113},
  {station,"Muzeum Narodowe",{54.37,23.84}} =>
      #{{measurement,{{2020,4,7},{0,5,27}},"PM10"} => 63}}

Polecenia 16 i 17 sprawdzają funkcję removeValue, dodajemy, a następnie usuwamy ewidentnie błędną wartość

16> P6 = pollution:addValue("Muzeum Narodowe", calendar:local_time(), "PM10", 13400, P5).
#{{station,"Aleja Slowackiego",{50.2345,18.3445}} =>
      #{{measurement,{{2020,4,7},{0,5,18}},"PM10"} => 59,
        {measurement,{{2020,4,7},{0,5,20}},"PM2,5"} => 113},
  {station,"Muzeum Narodowe",{54.37,23.84}} =>
      #{{measurement,{{2020,4,7},{0,5,27}},"PM10"} => 63,
        {measurement,{{2020,4,7},{0,5,30}},"PM10"} => 13400}}
17> P7 = pollution:removeValue("Muzeum Narodowe", {{2020, 4, 7}, {0, 5, 30}}, "PM10", P6).
#{{station,"Aleja Slowackiego",{50.2345,18.3445}} =>
      #{{measurement,{{2020,4,7},{0,5,18}},"PM10"} => 59,
        {measurement,{{2020,4,7},{0,5,20}},"PM2,5"} => 113},
  {station,"Muzeum Narodowe",{54.37,23.84}} =>
      #{{measurement,{{2020,4,7},{0,5,27}},"PM10"} => 63}}