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42 lines
646 B
Go
42 lines
646 B
Go
package record
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import (
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"testing"
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S "github.com/ibm/fp-go/string"
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"github.com/stretchr/testify/assert"
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)
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func TestUnionMonoid(t *testing.T) {
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m := UnionMonoid[string](S.Semigroup())
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e := Empty[string, string]()
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x := map[string]string{
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"a": "a1",
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"b": "b1",
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"c": "c1",
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}
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y := map[string]string{
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"b": "b2",
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"c": "c2",
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"d": "d2",
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}
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res := map[string]string{
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"a": "a1",
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"b": "b1b2",
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"c": "c1c2",
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"d": "d2",
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}
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assert.Equal(t, x, m.Concat(x, m.Empty()))
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assert.Equal(t, x, m.Concat(m.Empty(), x))
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assert.Equal(t, x, m.Concat(x, e))
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assert.Equal(t, x, m.Concat(e, x))
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assert.Equal(t, res, m.Concat(x, y))
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}
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