40 lines
782 B
Go
40 lines
782 B
Go
package money
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import (
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"testing"
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"github.com/shopspring/decimal"
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)
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func d(raw string) decimal.Decimal {
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v, err := decimal.NewFromString(raw)
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if err != nil {
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panic(err)
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}
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return v
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}
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func TestRoundToTick(t *testing.T) {
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tests := []struct {
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price string
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tick string
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mode RoundMode
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want string
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}{
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{"10.12346", "0.0001", RoundNearest, "10.1235"},
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{"10.126", "0.01", RoundFloor, "10.12"},
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{"10.126", "0.01", RoundCeil, "10.13"},
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{"10.24", "0.5", RoundNearest, "10"},
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{"10.26", "0.5", RoundNearest, "10.5"},
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}
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for _, tt := range tests {
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got, err := RoundToTick(d(tt.price), d(tt.tick), tt.mode)
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if err != nil {
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t.Fatal(err)
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}
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if !got.Equal(d(tt.want)) {
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t.Fatalf("RoundToTick(%s,%s)=%s want %s", tt.price, tt.tick, got, tt.want)
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}
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}
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}
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