Feature/#8 datetime (#153)

pkg/stdlib/datetime/helpers_test.go

@@ -0,0 +1,65 @@
+package datetime_test
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/MontFerret/ferret/pkg/runtime/core"
+	"github.com/MontFerret/ferret/pkg/runtime/values"
+
+	. "github.com/smartystreets/goconvey/convey"
+)
+
+type testCase struct {
+	Name      string
+	Expected  core.Value
+	TimeArg   time.Time
+	Args      []core.Value
+	ShouldErr bool
+}
+
+func (tc *testCase) Do(t *testing.T, fn core.Function) {
+	Convey(tc.Name, t, func() {
+		expected := tc.Expected
+
+		actual, err := fn(context.Background(), tc.Args...)
+
+		if tc.ShouldErr {
+			So(err, ShouldBeError)
+			expected = values.None
+		} else {
+			So(err, ShouldBeNil)
+		}
+
+		So(actual.Compare(expected), ShouldEqual, 0)
+	})
+}
+
+func mustDefaultLayoutDt(timeString string) values.DateTime {
+	dt, err := defaultLayoutDt(timeString)
+	if err != nil {
+		panic(err)
+	}
+	return dt
+}
+
+func mustLayoutDt(layout, value string) values.DateTime {
+	dt, err := layoutDt(layout, value)
+	if err != nil {
+		panic(err)
+	}
+	return dt
+}
+
+func defaultLayoutDt(timeString string) (values.DateTime, error) {
+	return layoutDt(values.DefaultTimeLayout, timeString)
+}
+
+func layoutDt(layout, value string) (values.DateTime, error) {
+	t, err := time.Parse(layout, value)
+	if err != nil {
+		return values.DateTime{}, err
+	}
+	return values.NewDateTime(t), nil
+}