package indicator import ( "encoding/json" "testing" "github.com/c9s/bbgo/pkg/fixedpoint" "github.com/c9s/bbgo/pkg/types" "github.com/stretchr/testify/assert" ) /* python: import pandas as pd import pandas_ta as ta data = pd.Series([0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0]) size = 5 result = ta.sma(data, size) print(result) */ func Test_SMA(t *testing.T) { Delta := 0.001 var randomPrices = []byte(`[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9]`) var input []fixedpoint.Value if err := json.Unmarshal(randomPrices, &input); err != nil { panic(err) } tests := []struct { name string kLines []types.KLine want float64 next float64 update float64 updateResult float64 all int }{ { name: "test", kLines: buildKLines(input), want: 7.0, next: 6.0, update: 0, updateResult: 6.0, all: 27, }, } for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { sma := SMA{ IntervalWindow: types.IntervalWindow{Window: 5}, } sma.CalculateAndUpdate(tt.kLines) assert.InDelta(t, tt.want, sma.Last(), Delta) assert.InDelta(t, tt.next, sma.Index(1), Delta) sma.Update(tt.update) assert.InDelta(t, tt.updateResult, sma.Last(), Delta) assert.Equal(t, tt.all, sma.Length()) }) } }