273 lines
8.4 KiB
Go
273 lines
8.4 KiB
Go
package interp_test
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import (
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"go/build"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"testing"
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"github.com/containous/yaegi/interp"
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"github.com/containous/yaegi/stdlib"
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"github.com/containous/yaegi/stdlib/unsafe"
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)
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func TestInterpConsistencyBuild(t *testing.T) {
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if testing.Short() {
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t.Skip("short mode")
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}
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dir := filepath.Join("..", "_test", "tmp")
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if _, err := os.Stat(dir); os.IsNotExist(err) {
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if err := os.Mkdir(dir, 0700); err != nil {
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t.Fatal(err)
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}
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}
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baseDir := filepath.Join("..", "_test")
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files, err := ioutil.ReadDir(baseDir)
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if err != nil {
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t.Fatal(err)
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}
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for _, file := range files {
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if filepath.Ext(file.Name()) != ".go" ||
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file.Name() == "assign11.go" || // expect error
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file.Name() == "assign12.go" || // expect error
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file.Name() == "bad0.go" || // expect error
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file.Name() == "const9.go" || // expect error
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file.Name() == "export1.go" || // non-main package
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file.Name() == "export0.go" || // non-main package
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file.Name() == "for7.go" || // expect error
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file.Name() == "fun21.go" || // expect error
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file.Name() == "fun22.go" || // expect error
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file.Name() == "if2.go" || // expect error
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file.Name() == "import6.go" || // expect error
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file.Name() == "io0.go" || // use random number
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file.Name() == "op1.go" || // expect error
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file.Name() == "bltn0.go" || // expect error
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file.Name() == "method16.go" || // private struct field
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file.Name() == "switch8.go" || // expect error
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file.Name() == "switch9.go" || // expect error
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file.Name() == "switch13.go" || // expect error
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file.Name() == "switch19.go" || // expect error
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file.Name() == "time0.go" || // display time (similar to random number)
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file.Name() == "factor.go" || // bench
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file.Name() == "fib.go" || // bench
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file.Name() == "type5.go" || // used to illustrate a limitation with no workaround, related to the fact that the reflect package does not allow the creation of named types
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file.Name() == "type6.go" || // used to illustrate a limitation with no workaround, related to the fact that the reflect package does not allow the creation of named types
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file.Name() == "redeclaration0.go" || // expect error
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file.Name() == "redeclaration1.go" || // expect error
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file.Name() == "redeclaration2.go" || // expect error
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file.Name() == "redeclaration3.go" || // expect error
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file.Name() == "redeclaration4.go" || // expect error
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file.Name() == "redeclaration5.go" || // expect error
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file.Name() == "redeclaration-global0.go" || // expect error
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file.Name() == "redeclaration-global1.go" || // expect error
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file.Name() == "redeclaration-global2.go" || // expect error
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file.Name() == "redeclaration-global3.go" || // expect error
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file.Name() == "redeclaration-global4.go" || // expect error
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file.Name() == "redeclaration-global5.go" || // expect error
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file.Name() == "redeclaration-global6.go" || // expect error
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file.Name() == "server6.go" || // syntax parsing
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file.Name() == "server5.go" || // syntax parsing
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file.Name() == "server4.go" || // syntax parsing
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file.Name() == "server3.go" || // syntax parsing
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file.Name() == "server2.go" || // syntax parsing
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file.Name() == "server1a.go" || // syntax parsing
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file.Name() == "server1.go" || // syntax parsing
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file.Name() == "server0.go" || // syntax parsing
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file.Name() == "server.go" { // syntax parsing
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continue
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}
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file := file
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t.Run(file.Name(), func(t *testing.T) {
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filePath := filepath.Join(baseDir, file.Name())
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src, err := ioutil.ReadFile(filePath)
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if err != nil {
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t.Fatal(err)
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}
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// catch stdout
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backupStdout := os.Stdout
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defer func() {
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os.Stdout = backupStdout
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}()
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r, w, _ := os.Pipe()
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os.Stdout = w
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i := interp.New(interp.Options{GoPath: build.Default.GOPATH})
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i.Name = filePath
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i.Use(stdlib.Symbols)
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i.Use(interp.Symbols)
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i.Use(unsafe.Symbols)
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_, err = i.Eval(string(src))
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if err != nil {
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t.Fatal(err)
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}
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// read stdout
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if err = w.Close(); err != nil {
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t.Fatal(err)
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}
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outInterp, err := ioutil.ReadAll(r)
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if err != nil {
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t.Fatal(err)
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}
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// restore Stdout
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os.Stdout = backupStdout
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bin := filepath.Join(dir, strings.TrimSuffix(file.Name(), ".go"))
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cmdBuild := exec.Command("go", "build", "-tags=dummy", "-o", bin, filePath)
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outBuild, err := cmdBuild.CombinedOutput()
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if err != nil {
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t.Log(string(outBuild))
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t.Fatal(err)
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}
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cmd := exec.Command(bin)
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outRun, err := cmd.CombinedOutput()
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if err != nil {
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t.Log(string(outRun))
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t.Fatal(err)
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}
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if string(outInterp) != string(outRun) {
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t.Errorf("\nGot: %q,\n want: %q", string(outInterp), string(outRun))
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}
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})
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}
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}
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func TestInterpErrorConsistency(t *testing.T) {
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testCases := []struct {
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fileName string
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expectedInterp string
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expectedExec string
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}{
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{
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fileName: "assign11.go",
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expectedInterp: "6:2: assignment mismatch: 3 variables but fmt.Println returns 2 values",
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expectedExec: "6:10: assignment mismatch: 3 variables but fmt.Println returns 2 values",
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},
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{
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fileName: "assign12.go",
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expectedInterp: "6:2: assignment mismatch: 3 variables but fmt.Println returns 2 values",
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expectedExec: "6:10: assignment mismatch: 3 variables but fmt.Println returns 2 values",
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},
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{
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fileName: "bad0.go",
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expectedInterp: "1:1: expected 'package', found println",
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expectedExec: "1:1: expected 'package', found println",
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},
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{
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fileName: "const9.go",
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expectedInterp: "5:2: constant definition loop",
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expectedExec: "5:2: constant definition loop",
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},
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{
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fileName: "if2.go",
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expectedInterp: "7:5: non-bool used as if condition",
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expectedExec: "7:2: non-bool i % 1000000 (type int) used as if condition",
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},
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{
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fileName: "for7.go",
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expectedInterp: "4:14: non-bool used as for condition",
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expectedExec: "4:2: non-bool i (type int) used as for condition",
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},
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{
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fileName: "fun21.go",
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expectedInterp: "4:2: not enough arguments to return",
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expectedExec: "4:2: not enough arguments to return",
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},
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{
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fileName: "fun22.go",
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expectedInterp: "6:2: not enough arguments in call to time.Date",
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expectedExec: "6:11: not enough arguments in call to time.Date",
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},
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{
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fileName: "op1.go",
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expectedInterp: "5:2: illegal operand types for '+=' operator",
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expectedExec: "5:4: constant 1.3 truncated to integer",
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},
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{
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fileName: "bltn0.go",
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expectedInterp: "4:7: use of builtin println not in function call",
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},
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{
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fileName: "import6.go",
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expectedInterp: "import cycle not allowed",
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expectedExec: "import cycle not allowed",
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},
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{
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fileName: "switch8.go",
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expectedInterp: "5:2: fallthrough statement out of place",
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expectedExec: "5:2: fallthrough statement out of place",
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},
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{
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fileName: "switch9.go",
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expectedInterp: "9:3: cannot fallthrough in type switch",
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expectedExec: "9:3: cannot fallthrough in type switch",
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},
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{
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fileName: "switch13.go",
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expectedInterp: "9:2: i is not a type",
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expectedExec: "9:2: i (type interface {}) is not a type",
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},
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{
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fileName: "switch19.go",
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expectedInterp: "37:2: duplicate case Bir in type switch",
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expectedExec: "37:2: duplicate case Bir in type switch",
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},
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}
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for _, test := range testCases {
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t.Run(test.fileName, func(t *testing.T) {
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if len(test.expectedInterp) == 0 && len(test.expectedExec) == 0 {
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t.Fatal("at least expectedInterp must be define")
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}
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filePath := filepath.Join("..", "_test", test.fileName)
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src, err := ioutil.ReadFile(filePath)
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if err != nil {
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t.Fatal(err)
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}
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i := interp.New(interp.Options{GoPath: build.Default.GOPATH})
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i.Name = filePath
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i.Use(stdlib.Symbols)
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_, errEval := i.Eval(string(src))
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if errEval == nil {
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t.Fatal("An error is expected but got none.")
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}
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if !strings.Contains(errEval.Error(), test.expectedInterp) {
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t.Errorf("got %q, want: %q", errEval.Error(), test.expectedInterp)
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}
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cmd := exec.Command("go", "run", filePath)
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outRun, errExec := cmd.CombinedOutput()
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if errExec == nil {
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t.Log(string(outRun))
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t.Fatal("An error is expected but got none.")
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}
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if len(test.expectedExec) == 0 && !strings.Contains(string(outRun), test.expectedInterp) {
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t.Errorf("got %q, want: %q", string(outRun), test.expectedInterp)
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} else if !strings.Contains(string(outRun), test.expectedExec) {
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t.Errorf("got %q, want: %q", string(outRun), test.expectedExec)
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}
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})
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}
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}
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