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