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optional_test.go
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optional_test.go
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package optional
import (
"fmt"
"reflect"
"testing"
)
func TestAbsent(t *testing.T) {
tests := []struct {
name string
want Optional
}{
{"absent", _absent},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := Absent(); !reflect.DeepEqual(got, tt.want) {
t.Errorf("Absent() = %v, want %v", got, tt.want)
}
})
}
}
func TestOf(t *testing.T) {
type args struct {
value interface{}
}
tests := []struct {
name string
args args
want Optional
}{
{"non-nil value", args{1}, &present{1}},
{"nil value", args{}, nil},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := func() interface{} {
defer func() {
if r := recover(); r != nil {
fmt.Printf("Recovered in test, reason:%s\n", r)
}
}()
return Of(tt.args.value)
}(); !reflect.DeepEqual(got, tt.want) {
t.Errorf("Of() = %v, want %v", got, tt.want)
}
})
}
}
func TestOfNilable(t *testing.T) {
type args struct {
value interface{}
}
tests := []struct {
name string
args args
want Optional
}{
{"non-nil value", args{0}, &present{0}},
{"nil value", args{}, _absent},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := OfNilable(tt.args.value); !reflect.DeepEqual(got, tt.want) {
t.Errorf("OfNilable() = %v, want %v", got, tt.want)
}
})
}
}