nomino/generators_test.go
2025-09-26 20:23:32 -05:00

106 lines
2.3 KiB
Go

package nomino
import (
"errors"
"slices"
"testing"
"github.com/nalgeon/be"
)
const (
out1 string = "abc"
out2 string = "def"
)
var (
outs = []string{out1, out2}
err1 = errors.New("oops")
gen1 Generator = func(*Config) (string, error) { return out1, nil }
gen2 Generator = func(*Config) (string, error) { return out2, nil }
gen3 Generator = func(*Config) (string, error) { return "", err1 }
gens = []Generator{gen1, gen2, gen3}
)
func TestWithGenerator(t *testing.T) {
g := func(*Config) (string, error) { return out1, nil }
var c Config
WithGenerator(g)(&c)
st, err := c.generator(&c)
be.Err(t, err, nil)
be.Equal(t, st, out1)
}
func TestMultiGeneratorInOrder(t *testing.T) {
g := MultiGeneratorInOrder(gens...)
st, err := g(nil)
be.Err(t, err, nil)
be.Equal(t, st, out1)
st, err = g(nil)
be.Err(t, err, nil)
be.Equal(t, st, out2)
st, err = g(nil)
be.Equal(t, st, "")
be.Err(t, err, err1)
st, err = g(nil)
be.Err(t, err, nil)
be.Equal(t, st, out1)
}
func TestMultiGeneratorInOrderOne(t *testing.T) {
g1 := func(*Config) (string, error) { return out1, nil }
g := MultiGeneratorInOrder(g1)
st, err := g(nil)
be.Err(t, err, nil)
be.Equal(t, st, out1)
st, err = g(nil)
be.Err(t, err, nil)
be.Equal(t, st, out1)
}
func TestMultiGeneratorInOrderMissing(t *testing.T) {
g := MultiGeneratorInOrder()
st, err := g(nil)
be.Equal(t, st, "")
be.Err(t, err, ErrMissingGenerators)
st, err = g(nil)
be.Equal(t, st, "")
be.Err(t, err, ErrMissingGenerators)
}
func TestMultiGeneratorRandomOrder(t *testing.T) {
g := MultiGeneratorRandomOrder(gens...)
for i := 0; i < 4; i++ {
st, err := g(nil)
if err != nil {
be.Equal(t, st, "")
be.Err(t, err, err1)
} else {
be.True(t, slices.Contains(outs, st))
}
}
}
func TestMultiGeneratorRandomOrderOne(t *testing.T) {
st1 := "abc"
g1 := func(*Config) (string, error) { return st1, nil }
g := MultiGeneratorRandomOrder(g1)
st, err := g(nil)
be.Err(t, err, nil)
be.Equal(t, st, st1)
st, err = g(nil)
be.Err(t, err, nil)
be.Equal(t, st, st1)
}
func TestMultiGeneratorRandomOrderMissing(t *testing.T) {
g := MultiGeneratorRandomOrder()
st, err := g(nil)
be.Equal(t, st, "")
be.Err(t, err, ErrMissingGenerators)
st, err = g(nil)
be.Equal(t, st, "")
be.Err(t, err, ErrMissingGenerators)
}