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30 lines
668 B
Go
30 lines
668 B
Go
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package math_test
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import (
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"context"
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"github.com/MontFerret/ferret/pkg/runtime/values"
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"github.com/MontFerret/ferret/pkg/stdlib/math"
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"testing"
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. "github.com/smartystreets/goconvey/convey"
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)
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func TestCos(t *testing.T) {
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Convey("Should return a value", t, func() {
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out, err := math.Cos(context.Background(), values.NewFloat(1))
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So(err, ShouldBeNil)
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So(out, ShouldEqual, 0.5403023058681398)
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out, err = math.Cos(context.Background(), values.NewFloat(0))
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So(err, ShouldBeNil)
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So(out, ShouldEqual, 1)
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out, err = math.Cos(context.Background(), values.NewFloat(-3.141592653589783))
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So(err, ShouldBeNil)
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So(out.Unwrap(), ShouldEqual, -1)
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})
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}
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