How to use Err method of ui Package

Best Testkube code snippet using ui.Err

exec_test.go

Source:exec_test.go Github

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...26 c := New(ui, nil)27 args := []string{"-http-addr=" + a.HTTPAddr(), "-wait=1s", "uptime"}28 code := c.Run(args)29 if code != 0 {30 t.Fatalf("bad: %d. Error:%#v (std)Output:%#v", code, ui.ErrorWriter.String(), ui.OutputWriter.String())31 }32 if !strings.Contains(ui.OutputWriter.String(), "load") {33 t.Fatalf("bad: %#v", ui.OutputWriter.String())34 }35}36func TestExecCommand_NoShell(t *testing.T) {37 t.Parallel()38 a := agent.NewTestAgent(t, `39 disable_remote_exec = false40 `)41 defer a.Shutdown()42 testrpc.WaitForTestAgent(t, a.RPC, "dc1")43 ui := cli.NewMockUi()44 c := New(ui, nil)45 args := []string{"-http-addr=" + a.HTTPAddr(), "-shell=false", "-wait=1s", "uptime"}46 code := c.Run(args)47 if code != 0 {48 t.Fatalf("bad: %d. Error:%#v (std)Output:%#v", code, ui.ErrorWriter.String(), ui.OutputWriter.String())49 }50 if !strings.Contains(ui.OutputWriter.String(), "load") {51 t.Fatalf("bad: %#v", ui.OutputWriter.String())52 }53}54func TestExecCommand_CrossDC(t *testing.T) {55 t.Parallel()56 a1 := agent.NewTestAgent(t, `57 disable_remote_exec = false58 `)59 defer a1.Shutdown()60 testrpc.WaitForTestAgent(t, a1.RPC, "dc1")61 a2 := agent.NewTestAgent(t, `62 datacenter = "dc2"63 disable_remote_exec = false64 `)65 defer a2.Shutdown()66 testrpc.WaitForTestAgent(t, a2.RPC, "dc2")67 // Join over the WAN68 _, err := a2.JoinWAN([]string{a1.Config.SerfBindAddrWAN.String()})69 if err != nil {70 t.Fatalf("err: %v", err)71 }72 retry.Run(t, func(r *retry.R) {73 if got, want := len(a1.WANMembers()), 2; got != want {74 r.Fatalf("got %d WAN members on a1 want %d", got, want)75 }76 if got, want := len(a2.WANMembers()), 2; got != want {77 r.Fatalf("got %d WAN members on a2 want %d", got, want)78 }79 })80 ui := cli.NewMockUi()81 c := New(ui, nil)82 args := []string{"-http-addr=" + a1.HTTPAddr(), "-wait=500ms", "-datacenter=dc2", "uptime"}83 code := c.Run(args)84 if code != 0 {85 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())86 }87 if !strings.Contains(ui.OutputWriter.String(), "load") {88 t.Fatalf("bad: %#v", ui.OutputWriter.String())89 }90}91func TestExecCommand_Validate(t *testing.T) {92 t.Parallel()93 conf := &rExecConf{}94 err := conf.validate()95 if err != nil {96 t.Fatalf("err: %v", err)97 }98 conf.node = "("99 err = conf.validate()...

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kv_get_test.go

Source:kv_get_test.go Github

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...31 },32 }33 for name, tc := range cases {34 // Ensure our buffer is always clear35 if ui.ErrorWriter != nil {36 ui.ErrorWriter.Reset()37 }38 if ui.OutputWriter != nil {39 ui.OutputWriter.Reset()40 }41 code := c.Run(tc.args)42 if code == 0 {43 t.Errorf("%s: expected non-zero exit", name)44 }45 output := ui.ErrorWriter.String()46 if !strings.Contains(output, tc.output) {47 t.Errorf("%s: expected %q to contain %q", name, output, tc.output)48 }49 }50}51func TestKVGetCommand(t *testing.T) {52 t.Parallel()53 a := agent.NewTestAgent(t, ``)54 defer a.Shutdown()55 client := a.Client()56 ui := cli.NewMockUi()57 c := New(ui)58 pair := &api.KVPair{59 Key: "foo",60 Value: []byte("bar"),61 }62 _, err := client.KV().Put(pair, nil)63 if err != nil {64 t.Fatalf("err: %#v", err)65 }66 args := []string{67 "-http-addr=" + a.HTTPAddr(),68 "foo",69 }70 code := c.Run(args)71 if code != 0 {72 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())73 }74 output := ui.OutputWriter.String()75 if !strings.Contains(output, "bar") {76 t.Errorf("bad: %#v", output)77 }78}79func TestKVGetCommand_Base64(t *testing.T) {80 t.Parallel()81 a := agent.NewTestAgent(t, ``)82 defer a.Shutdown()83 client := a.Client()84 ui := cli.NewMockUi()85 c := New(ui)86 pair := &api.KVPair{87 Key: "foo",88 Value: []byte("bar"),89 }90 _, err := client.KV().Put(pair, nil)91 if err != nil {92 t.Fatalf("err: %#v", err)93 }94 args := []string{95 "-http-addr=" + a.HTTPAddr(),96 "-base64",97 "foo",98 }99 code := c.Run(args)100 if code != 0 {101 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())102 }103 output := ui.OutputWriter.String()104 if !strings.Contains(output, base64.StdEncoding.EncodeToString(pair.Value)) {105 t.Errorf("bad: %#v", output)106 }107}108func TestKVGetCommand_Missing(t *testing.T) {109 t.Parallel()110 a := agent.NewTestAgent(t, ``)111 defer a.Shutdown()112 ui := cli.NewMockUi()113 c := New(ui)114 args := []string{115 "-http-addr=" + a.HTTPAddr(),116 "not-a-real-key",117 }118 code := c.Run(args)119 if code == 0 {120 t.Fatalf("expected bad code")121 }122}123func TestKVGetCommand_Empty(t *testing.T) {124 t.Parallel()125 a := agent.NewTestAgent(t, ``)126 defer a.Shutdown()127 client := a.Client()128 ui := cli.NewMockUi()129 c := New(ui)130 pair := &api.KVPair{131 Key: "empty",132 Value: []byte(""),133 }134 _, err := client.KV().Put(pair, nil)135 if err != nil {136 t.Fatalf("err: %#v", err)137 }138 args := []string{139 "-http-addr=" + a.HTTPAddr(),140 "empty",141 }142 code := c.Run(args)143 if code != 0 {144 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())145 }146}147func TestKVGetCommand_Detailed(t *testing.T) {148 t.Parallel()149 a := agent.NewTestAgent(t, ``)150 defer a.Shutdown()151 client := a.Client()152 ui := cli.NewMockUi()153 c := New(ui)154 pair := &api.KVPair{155 Key: "foo",156 Value: []byte("bar"),157 }158 _, err := client.KV().Put(pair, nil)159 if err != nil {160 t.Fatalf("err: %#v", err)161 }162 args := []string{163 "-http-addr=" + a.HTTPAddr(),164 "-detailed",165 "foo",166 }167 code := c.Run(args)168 if code != 0 {169 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())170 }171 output := ui.OutputWriter.String()172 for _, key := range []string{173 "CreateIndex",174 "LockIndex",175 "ModifyIndex",176 "Flags",177 "Session",178 "Value",179 } {180 if !strings.Contains(output, key) {181 t.Fatalf("bad %#v, missing %q", output, key)182 }183 }184}185func TestKVGetCommand_Keys(t *testing.T) {186 t.Parallel()187 a := agent.NewTestAgent(t, ``)188 defer a.Shutdown()189 client := a.Client()190 ui := cli.NewMockUi()191 c := New(ui)192 keys := []string{"foo/bar", "foo/baz", "foo/zip"}193 for _, key := range keys {194 if _, err := client.KV().Put(&api.KVPair{Key: key}, nil); err != nil {195 t.Fatalf("err: %#v", err)196 }197 }198 args := []string{199 "-http-addr=" + a.HTTPAddr(),200 "-keys",201 "foo/",202 }203 code := c.Run(args)204 if code != 0 {205 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())206 }207 output := ui.OutputWriter.String()208 for _, key := range keys {209 if !strings.Contains(output, key) {210 t.Fatalf("bad %#v missing %q", output, key)211 }212 }213}214func TestKVGetCommand_Recurse(t *testing.T) {215 t.Parallel()216 a := agent.NewTestAgent(t, ``)217 defer a.Shutdown()218 client := a.Client()219 ui := cli.NewMockUi()220 c := New(ui)221 keys := map[string]string{222 "foo/a": "a",223 "foo/b": "b",224 "foo/c": "c",225 }226 for k, v := range keys {227 pair := &api.KVPair{Key: k, Value: []byte(v)}228 if _, err := client.KV().Put(pair, nil); err != nil {229 t.Fatalf("err: %#v", err)230 }231 }232 args := []string{233 "-http-addr=" + a.HTTPAddr(),234 "-recurse",235 "foo",236 }237 code := c.Run(args)238 if code != 0 {239 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())240 }241 output := ui.OutputWriter.String()242 for key, value := range keys {243 if !strings.Contains(output, key+":"+value) {244 t.Fatalf("bad %#v missing %q", output, key)245 }246 }247}248func TestKVGetCommand_RecurseBase64(t *testing.T) {249 t.Parallel()250 a := agent.NewTestAgent(t, ``)251 defer a.Shutdown()252 client := a.Client()253 ui := cli.NewMockUi()254 c := New(ui)255 keys := map[string]string{256 "foo/a": "Hello World 1",257 "foo/b": "Hello World 2",258 "foo/c": "Hello World 3",259 }260 for k, v := range keys {261 pair := &api.KVPair{Key: k, Value: []byte(v)}262 if _, err := client.KV().Put(pair, nil); err != nil {263 t.Fatalf("err: %#v", err)264 }265 }266 args := []string{267 "-http-addr=" + a.HTTPAddr(),268 "-recurse",269 "-base64",270 "foo",271 }272 code := c.Run(args)273 if code != 0 {274 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())275 }276 output := ui.OutputWriter.String()277 for key, value := range keys {278 if !strings.Contains(output, key+":"+base64.StdEncoding.EncodeToString([]byte(value))) {279 t.Fatalf("bad %#v missing %q", output, key)280 }281 }282}283func TestKVGetCommand_DetailedBase64(t *testing.T) {284 t.Parallel()285 a := agent.NewTestAgent(t, ``)286 defer a.Shutdown()287 client := a.Client()288 ui := cli.NewMockUi()289 c := New(ui)290 pair := &api.KVPair{291 Key: "foo",292 Value: []byte("bar"),293 }294 _, err := client.KV().Put(pair, nil)295 if err != nil {296 t.Fatalf("err: %#v", err)297 }298 args := []string{299 "-http-addr=" + a.HTTPAddr(),300 "-detailed",301 "-base64",302 "foo",303 }304 code := c.Run(args)305 if code != 0 {306 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())307 }308 output := ui.OutputWriter.String()309 for _, key := range []string{310 "CreateIndex",311 "LockIndex",312 "ModifyIndex",313 "Flags",314 "Session",315 "Value",316 } {317 if !strings.Contains(output, key) {318 t.Fatalf("bad %#v, missing %q", output, key)319 }320 }...

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kv_put_test.go

Source:kv_put_test.go Github

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...49 }50 for name, tc := range cases {51 c.init()52 // Ensure our buffer is always clear53 if ui.ErrorWriter != nil {54 ui.ErrorWriter.Reset()55 }56 if ui.OutputWriter != nil {57 ui.OutputWriter.Reset()58 }59 code := c.Run(tc.args)60 if code == 0 {61 t.Errorf("%s: expected non-zero exit", name)62 }63 output := ui.ErrorWriter.String()64 if !strings.Contains(output, tc.output) {65 t.Errorf("%s: expected %q to contain %q", name, output, tc.output)66 }67 }68}69func TestKVPutCommand(t *testing.T) {70 t.Parallel()71 a := agent.NewTestAgent(t, ``)72 defer a.Shutdown()73 client := a.Client()74 ui := cli.NewMockUi()75 c := New(ui)76 args := []string{77 "-http-addr=" + a.HTTPAddr(),78 "foo", "bar",79 }80 code := c.Run(args)81 if code != 0 {82 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())83 }84 data, _, err := client.KV().Get("foo", nil)85 if err != nil {86 t.Fatal(err)87 }88 if !bytes.Equal(data.Value, []byte("bar")) {89 t.Errorf("bad: %#v", data.Value)90 }91}92func TestKVPutCommand_EmptyDataQuoted(t *testing.T) {93 t.Parallel()94 a := agent.NewTestAgent(t, ``)95 defer a.Shutdown()96 client := a.Client()97 ui := cli.NewMockUi()98 c := New(ui)99 args := []string{100 "-http-addr=" + a.HTTPAddr(),101 "foo", "",102 }103 code := c.Run(args)104 if code != 0 {105 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())106 }107 data, _, err := client.KV().Get("foo", nil)108 if err != nil {109 t.Fatal(err)110 }111 if data.Value != nil {112 t.Errorf("bad: %#v", data.Value)113 }114}115func TestKVPutCommand_Base64(t *testing.T) {116 t.Parallel()117 a := agent.NewTestAgent(t, ``)118 defer a.Shutdown()119 client := a.Client()120 ui := cli.NewMockUi()121 c := New(ui)122 const encodedString = "aGVsbG8gd29ybGQK"123 args := []string{124 "-http-addr=" + a.HTTPAddr(),125 "-base64",126 "foo", encodedString,127 }128 code := c.Run(args)129 if code != 0 {130 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())131 }132 data, _, err := client.KV().Get("foo", nil)133 if err != nil {134 t.Fatal(err)135 }136 expected, err := base64.StdEncoding.DecodeString(encodedString)137 if err != nil {138 t.Fatal(err)139 }140 if !bytes.Equal(data.Value, expected) {141 t.Errorf("bad: %#v, %s", data.Value, data.Value)142 }143}144func TestKVPutCommand_File(t *testing.T) {145 t.Parallel()146 a := agent.NewTestAgent(t, ``)147 defer a.Shutdown()148 client := a.Client()149 ui := cli.NewMockUi()150 c := New(ui)151 f := testutil.TempFile(t, "kv-put-command-file")152 defer os.Remove(f.Name())153 if _, err := f.WriteString("bar"); err != nil {154 t.Fatalf("err: %#v", err)155 }156 args := []string{157 "-http-addr=" + a.HTTPAddr(),158 "foo", "@" + f.Name(),159 }160 code := c.Run(args)161 if code != 0 {162 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())163 }164 data, _, err := client.KV().Get("foo", nil)165 if err != nil {166 t.Fatal(err)167 }168 if !bytes.Equal(data.Value, []byte("bar")) {169 t.Errorf("bad: %#v", data.Value)170 }171}172func TestKVPutCommand_FileNoExist(t *testing.T) {173 t.Parallel()174 ui := cli.NewMockUi()175 c := New(ui)176 args := []string{177 "foo", "@/nope/definitely/not-a-real-file.txt",178 }179 code := c.Run(args)180 if code == 0 {181 t.Fatal("bad: expected error")182 }183 output := ui.ErrorWriter.String()184 if !strings.Contains(output, "Failed to read file") {185 t.Errorf("bad: %#v", output)186 }187}188func TestKVPutCommand_Stdin(t *testing.T) {189 t.Parallel()190 a := agent.NewTestAgent(t, ``)191 defer a.Shutdown()192 client := a.Client()193 stdinR, stdinW := io.Pipe()194 ui := cli.NewMockUi()195 c := New(ui)196 c.testStdin = stdinR197 go func() {198 stdinW.Write([]byte("bar"))199 stdinW.Close()200 }()201 args := []string{202 "-http-addr=" + a.HTTPAddr(),203 "foo", "-",204 }205 code := c.Run(args)206 if code != 0 {207 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())208 }209 data, _, err := client.KV().Get("foo", nil)210 if err != nil {211 t.Fatal(err)212 }213 if !bytes.Equal(data.Value, []byte("bar")) {214 t.Errorf("bad: %#v", data.Value)215 }216}217func TestKVPutCommand_NegativeVal(t *testing.T) {218 t.Parallel()219 a := agent.NewTestAgent(t, ``)220 defer a.Shutdown()221 client := a.Client()222 ui := cli.NewMockUi()223 c := New(ui)224 args := []string{225 "-http-addr=" + a.HTTPAddr(),226 "foo", "-2",227 }228 code := c.Run(args)229 if code != 0 {230 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())231 }232 data, _, err := client.KV().Get("foo", nil)233 if err != nil {234 t.Fatal(err)235 }236 if !bytes.Equal(data.Value, []byte("-2")) {237 t.Errorf("bad: %#v", data.Value)238 }239}240func TestKVPutCommand_Flags(t *testing.T) {241 t.Parallel()242 a := agent.NewTestAgent(t, ``)243 defer a.Shutdown()244 client := a.Client()245 ui := cli.NewMockUi()246 c := New(ui)247 args := []string{248 "-http-addr=" + a.HTTPAddr(),249 "-flags", "12345",250 "foo",251 }252 code := c.Run(args)253 if code != 0 {254 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())255 }256 data, _, err := client.KV().Get("foo", nil)257 if err != nil {258 t.Fatal(err)259 }260 if data.Flags != 12345 {261 t.Errorf("bad: %#v", data.Flags)262 }263}264func TestKVPutCommand_CAS(t *testing.T) {265 t.Parallel()266 a := agent.NewTestAgent(t, ``)267 defer a.Shutdown()268 client := a.Client()269 // Create the initial pair so it has a ModifyIndex.270 pair := &api.KVPair{271 Key: "foo",272 Value: []byte("bar"),273 }274 if _, err := client.KV().Put(pair, nil); err != nil {275 t.Fatalf("err: %#v", err)276 }277 ui := cli.NewMockUi()278 c := New(ui)279 args := []string{280 "-http-addr=" + a.HTTPAddr(),281 "-cas",282 "-modify-index", "123",283 "foo", "a",284 }285 code := c.Run(args)286 if code == 0 {287 t.Fatalf("bad: expected error")288 }289 data, _, err := client.KV().Get("foo", nil)290 if err != nil {291 t.Fatal(err)292 }293 // Reset buffers294 ui.OutputWriter.Reset()295 ui.ErrorWriter.Reset()296 args = []string{297 "-http-addr=" + a.HTTPAddr(),298 "-cas",299 "-modify-index", strconv.FormatUint(data.ModifyIndex, 10),300 "foo", "a",301 }302 code = c.Run(args)303 if code != 0 {304 t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())305 }306 data, _, err = client.KV().Get("foo", nil)307 if err != nil {308 t.Fatal(err)309 }310 if !bytes.Equal(data.Value, []byte("a")) {311 t.Errorf("bad: %#v", data.Value)312 }313}...

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Err

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1import "fmt"2func main() {3 fmt.Println("Hello World")4}5import "fmt"6func main() {7 fmt.Println("Hello World")8}9import "fmt"10func main() {11 fmt.Println("Hello World")12}13import "fmt"14func main() {15 fmt.Println("Hello World")16}17import "fmt"18func main() {19 fmt.Println("Hello World")20}21import "fmt"22func main() {23 fmt.Println("Hello World")24}25import "fmt"26func main() {27 fmt.Println("Hello World")28}29import "fmt"30func main() {31 fmt.Println("Hello World")32}33import "fmt"34func main() {35 fmt.Println("Hello World")36}37import "fmt"38func main() {39 fmt.Println("Hello World")40}41import "fmt"42func main() {43 fmt.Println("Hello World")44}45import "fmt"46func main() {47 fmt.Println("Hello World")48}49import "fmt"50func main() {51 fmt.Println("Hello World")52}53import "fmt"54func main() {55 fmt.Println("Hello World")56}57import "fmt"

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Err

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1import "fmt"2type UI struct {}3func (ui *UI) Err() error {4 return fmt.Errorf("Error")5}6func main() {7 ui := UI{}8 err := ui.Err()9 fmt.Println(err)10}11import "fmt"12type UI struct {}13func (ui *UI) Err() error {14 return fmt.Errorf("Error")15}16func main() {17 ui := UI{}18 err := ui.Err()19 fmt.Println(err.Error())20}21import "fmt"22type UI struct {}23func (ui *UI) Err() error {24 return fmt.Errorf("Error")25}26func main() {27 ui := UI{}28 err := ui.Err()29 fmt.Println(err.Error())30 fmt.Println(err)31}32import "fmt"33type UI struct {}34func (ui *UI) Err() error {35 return fmt.Errorf("Error")36}37func main() {38 ui := UI{}39 err := ui.Err()40 fmt.Println(err.Error())41 fmt.Println(err)42 fmt.Println(err.Error())43}44import "fmt"45type UI struct {}46func (ui *UI) Err() error {47 return fmt.Errorf("Error")48}49func main() {50 ui := UI{}51 err := ui.Err()52 fmt.Println(err.Error())53 fmt.Println(err.Error())54 fmt.Println(err.Error())55}56import "fmt"57type UI struct {}58func (ui *UI) Err() error {59 return fmt.Errorf("Error")60}61func main() {62 ui := UI{}63 err := ui.Err()64 fmt.Println(err.Error())65 fmt.Println(err.Error())66 fmt.Println(err.Error())67 fmt.Println(err.Error())68}

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Err

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1func main() {2 ui := &UI{}3 ui.Err("Error")4}5func main() {6 ui := &UI{}7 ui.Err("Error")8}9func main() {10 ui := &UI{}11 ui.Err("Error")12}13func main() {14 ui := &UI{}15 ui.Err("Error")16}17func main() {18 ui := &UI{}19 ui.Err("Error")20}21func main() {22 ui := &UI{}23 ui.Err("Error")24}25func main() {26 ui := &UI{}27 ui.Err("Error")28}29func main() {30 ui := &UI{}31 ui.Err("Error")32}33func main() {34 ui := &UI{}35 ui.Err("Error")36}37func main() {38 ui := &UI{}39 ui.Err("Error")40}41func main() {42 ui := &UI{}43 ui.Err("Error")44}45func main() {46 ui := &UI{}47 ui.Err("Error")48}49func main() {50 ui := &UI{}51 ui.Err("Error")52}53func main() {54 ui := &UI{}55 ui.Err("Error")56}57func main() {58 ui := &UI{}59 ui.Err("Error")60}

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Err

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1import (2type ui struct {3}4func (u *ui) Err() {5 fmt.Println(u.err)6}7func main() {8 u := &ui{err: fmt.Errorf("some error")}9 u.Err()10}

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Err

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1import "fmt"2type UI struct {3}4func (u *UI) Run() {5 fmt.Println(u.Err)6}7func main() {8 ui := UI{Err: fmt.Errorf("Error")}9 ui.Run()10}11import "fmt"12type UI struct {13}14func (u *UI) Run() {15 fmt.Println(u.Err)16}17func main() {18 ui := UI{Err: fmt.Errorf("Error")}19 ui.Run()20}21import "fmt"22type UI struct {23}24func (u *UI) Run() {25 fmt.Println(u.Err)26}27func main() {28 ui := UI{Err: fmt.Errorf("Error")}29 ui.Run()30}31import "fmt"32type UI struct {33}34func (u *UI) Run() {35 fmt.Println(u.Err)36}37func main() {38 ui := UI{Err: fmt.Errorf("Error")}39 ui.Run()40}41import "fmt"42type UI struct {43}

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Err

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1import (2func main() {3 u = ui.NewUI()4 fmt.Println(u.Err())5}6import (7type UI struct {8}9func NewUI() *UI {10 return &UI{}11}12func (u *UI) Err() error {13 return errors.New("Error")14}15import (16func main() {17 fmt.Println(u.Err())18}19./3.go:8: u.Err undefined (type ui.UI has no field or method Err)20If you want to import the package in 3.go, you can do so by writing the following code:21import (22func main() {23 u = ui.NewUI()24 fmt.Println(u.Err())25}26import (27type UI struct {28}29func NewUI() *UI {30 return &UI{}31}32func (u *UI) Err() error {33 return errors.New("Error")34}35import (36func main() {37 fmt.Println(u

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1import "fmt"2func main() {3 ui = &user{"Tom"}4 ui.Err()5}6import "fmt"7func main() {8 ui = &user{"Tom"}9 ui.Err()10}11import "fmt"12func main() {13 ui = &user{"Tom"}14 ui.Err()15}16import "fmt"17func main() {18 ui = &user{"Tom"}19 ui.Err()20}21import "fmt"22func main() {23 ui = &user{"Tom"}24 ui.Err()25}26import "fmt"27func main() {28 ui = &user{"Tom"}29 ui.Err()30}31import "fmt"32func main() {33 ui = &user{"Tom"}34 ui.Err()35}36import "fmt"37func main() {38 ui = &user{"Tom"}39 ui.Err()40}41import "fmt"42func main() {43 ui = &user{"Tom"}44 ui.Err()45}46import "fmt"47func main() {48 ui = &user{"Tom"}49 ui.Err()50}51import "fmt"52func main() {53 ui = &user{"Tom"}54 ui.Err()55}

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1import (2func main() {3 ui.Err("Hello")4}5import (6func main() {7 u := ui.ui{}8 u.Err("Hello")9}10import (11func main() {12 ui.ui{}.Err("Hello")13}14import (15func main() {16 ui.ui{}.Err("Hello")17}18import (19func main() {20 ui.ui{}.Err("Hello")21}

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