2020-06-27 15:48:36 +00:00
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package v1
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2020-01-24 17:21:31 +00:00
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import (
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"bytes"
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"encoding/json"
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"errors"
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"testing"
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)
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func TestDecodeOpts(t *testing.T) {
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tests := []struct {
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name string
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input string
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res interface{}
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err error
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result string
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}{
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{
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name: "EmptyInput",
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input: "",
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res: &struct {
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Name string `json:"name,omitempty"`
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}{},
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result: `{}`,
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},
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{
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name: "EmptyJSON",
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input: "{}",
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res: &struct {
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Name string `json:"name,omitempty"`
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}{},
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result: `{}`,
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},
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{
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name: "BadInput",
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input: "bad",
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res: &struct {
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Name string `json:"name,omitempty"`
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}{},
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err: errors.New("open bad: no such file or directory"),
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},
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{
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name: "GoodDirect",
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input: `{"name":"test"}`,
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res: &struct {
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Name string `json:"name,omitempty"`
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}{},
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result: `{"name":"test"}`,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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err := decodeOpts(test.input, test.res)
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if test.err == nil {
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if err != nil {
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t.Fatalf("Unexepcted error: %v", err)
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}
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recoded, err := json.Marshal(test.res)
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if err != nil {
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t.Fatalf("Unexepcted error encoding result: %v", err)
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}
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if !bytes.Equal([]byte(test.result), recoded) {
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t.Fatalf("Unexpected recoded value: expected %s, received %s", test.result, string(recoded))
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}
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} else {
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if err == nil {
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t.Fatalf("Missing expected error: %v", test.err)
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}
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if test.err.Error() != err.Error() {
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t.Fatalf("Unexpected error value: expected %v, received %v", test.err.Error(), err.Error())
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}
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}
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})
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}
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}
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