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ferret/pkg/stdlib/math/tan_test.go

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package math_test
import (
"context"
"github.com/MontFerret/ferret/pkg/runtime/values"
"github.com/MontFerret/ferret/pkg/stdlib/math"
"testing"
. "github.com/smartystreets/goconvey/convey"
)
func TestTan(t *testing.T) {
Convey("Should return tan value", t, func() {
out, err := math.Tan(context.Background(), values.NewFloat(10))
So(err, ShouldBeNil)
So(out.Unwrap(), ShouldEqual, 0.6483608274590867)
out, err = math.Tan(context.Background(), values.NewInt(5))
So(err, ShouldBeNil)
So(out.Unwrap(), ShouldEqual, -3.3805150062465854)
out, err = math.Tan(context.Background(), values.NewInt(0))
So(err, ShouldBeNil)
So(out, ShouldEqual, 0)
})
}