multierror_test.go

package valkyrie

import (
	"fmt"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestMultiErrorValidation(t *testing.T) {
	me := &MultiError{}
	me.Push("one")
	me.Push("two")

	res := me.HasError()

	assert.Error(t, res, "expected populated multi-error validation to be non-nil")
}

func TestMultiErrorRespresentation(t *testing.T) {
	me := &MultiError{}
	me.Push("one")
	me.Push("two")

	require.Error(t, me, "no multierror occured")

	res := me.Error()

	assert.Equal(t, "one, two", res)
}

func TestMultiErrorWithoutErrorsValidationIsNil(t *testing.T) {
	me := &MultiError{}

	err := me.HasError()

	assert.NoError(t, err, "expected empty multi-error validation to be nil")
}

func TestMultiErrorRespresentationIsEmpty(t *testing.T) {
	me := &MultiError{}

	res := me.Error()

	assert.Empty(t, res, "expected empty multi-error representation to be empty")
}

func TestMultiErrorWhileConcurrentPushShouldNotPanic(t *testing.T) {
	me := &MultiError{}
	concurrentPushAndErrors := func() {
		for i := 0; i < 100; i++ {
			go func(errValue int) { me.Push(fmt.Sprintf("Error %d", errValue)) }(i)
			go func() { _ = me.Error() }()
		}
	}
	assert.NotPanics(t, concurrentPushAndErrors)
}