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33 lines
521 B
Go
33 lines
521 B
Go
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package testing
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import (
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"fmt"
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"testing"
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EQ "github.com/ibm/fp-go/eq"
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"github.com/stretchr/testify/assert"
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)
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func TestMonadLaws(t *testing.T) {
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// some comparison
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eqa := EQ.FromStrictEquals[bool]()
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eqb := EQ.FromStrictEquals[int]()
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eqc := EQ.FromStrictEquals[string]()
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ab := func(a bool) int {
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if a {
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return 1
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}
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return 0
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}
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bc := func(b int) string {
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return fmt.Sprintf("value %d", b)
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}
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laws := AssertLaws(t, eqa, eqb, eqc, ab, bc)
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assert.True(t, laws(true))
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assert.True(t, laws(false))
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}
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