TestMu Conference is Back! Future of Testing + AI
How to use parseFile method of cover Package
Best Syzkaller code snippet using cover.parseFile
gconfig_test.go
Source:gconfig_test.go 
1package gconfig2import (3 "os"4 "testing"5 "github.com/stretchr/testify/assert"6)7type EnvObjConfig struct {8 Bval bool `json:"bval" env:"OBJ_BVAL"`9 Ival int `json:"ival" env:"OBJ_IVAL"`10 I32 int32 `json:"i32" env:"OBJ_I32"`11 I64 int64 `json:"i64" env:"OBJ_I64"`12 Str string `json:"str" env:"OBJ_STR"`13}14type EnvConfig struct {15 Bval bool `json:"bval" env:"BVAL"`16 Ival int `json:"ival" env:"IVAL"`17 I32 int32 `json:"i32" env:"I32"`18 I64 int64 `json:"i64" env:"I64"`19 Str string `json:"str" env:"STR"`20 Obj EnvObjConfig `json:"obj"`21}22type FileObjConfig struct {23 Bval bool `json:"bval"`24 Ival int `json:"ival"`25 I32 int32 `json:"i32"`26 I64 int64 `json:"i64"`27 Str string `json:"str"`28}29type FileCover struct {30 Str string `json:"str"`31}32type FileDefault struct {33 Str string `json:"str"`34}35type FileConfig struct {36 Bval bool `json:"bval"`37 Ival int `json:"ival"`38 I32 int32 `json:"i32"`39 I64 int64 `json:"i64"`40 Str string `json:"str"`41 Obj FileObjConfig `json:"obj"`42 Cover FileCover `json:"cover"`43}44type CoverConfig struct {45 Str string `json:"str" env:"COVER_STR"`46}47type Config struct {48 Env EnvConfig `json:"env"`49 File FileConfig `json:"file"`50 FileCover FileCover `json:"fileCover"`51 FileDefault FileDefault `json:"fileDefault"`52 Cover CoverConfig `json:"cover"`53}54func TestUnmarshal(t *testing.T) {55 t.Run("Parse file", func(t *testing.T) {56 config := Config{}57 Unmarshal(&config)58 assert.Equal(t, config.File.Str, "str")59 })60 t.Run("Parse env", func(t *testing.T) {61 os.Setenv("STR", "str")62 config := Config{}63 Unmarshal(&config)64 os.Unsetenv("STR")65 assert.Equal(t, config.Env.Str, "str")66 })67}68func TestFile(t *testing.T) {69 t.Run("Parse file vars", func(t *testing.T) {70 config := Config{}71 gc := New()72 gc.ParseFile(&config)73 assert.Equal(t, config.File.Bval, true)74 assert.Equal(t, config.File.Ival, 1)75 assert.Equal(t, config.File.I32, int32(32))76 assert.Equal(t, config.File.I64, int64(64))77 assert.Equal(t, config.File.Str, "str")78 assert.Equal(t, config.File.Obj.Bval, true)79 assert.Equal(t, config.File.Obj.Ival, 1)80 assert.Equal(t, config.File.Obj.I32, int32(32))81 assert.Equal(t, config.File.Obj.I64, int64(64))82 assert.Equal(t, config.File.Obj.Str, "str")83 })84 t.Run("Parse default file", func(t *testing.T) {85 config := Config{}86 gc := New()87 gc.ParseFile(&config)88 assert.Equal(t, config.FileDefault.Str, "str")89 })90 t.Run("Cover file vars", func(t *testing.T) {91 config := Config{}92 gc := New()93 gc.ParseFile(&config)94 assert.Equal(t, config.FileCover.Str, "cover_str")95 })96}97func TestEnv(t *testing.T) {98 t.Run("Parse env vars to config", func(t *testing.T) {99 os.Setenv("BVAL", "true")100 os.Setenv("IVAL", "1")101 os.Setenv("I32", "32")102 os.Setenv("I64", "64")103 os.Setenv("STR", "str")104 os.Setenv("OBJ_BVAL", "true")105 os.Setenv("OBJ_IVAL", "1")106 os.Setenv("OBJ_I32", "32")107 os.Setenv("OBJ_I64", "64")108 os.Setenv("OBJ_STR", "str")109 config := Config{}110 gc := New()111 gc.ParseEnv(&config)112 os.Unsetenv("BVAL")113 os.Unsetenv("IVAL")114 os.Unsetenv("I32")115 os.Unsetenv("I64")116 os.Unsetenv("STR")117 os.Unsetenv("OBJ_BVAL")118 os.Unsetenv("OBJ_IVAL")119 os.Unsetenv("OBJ_I32")120 os.Unsetenv("OBJ_I64")121 os.Unsetenv("OBJ_STR")122 assert.Equal(t, config.Env.Bval, true)123 assert.Equal(t, config.Env.Ival, 1)124 assert.Equal(t, config.Env.I32, int32(32))125 assert.Equal(t, config.Env.I64, int64(64))126 assert.Equal(t, config.Env.Str, "str")127 assert.Equal(t, config.Env.Obj.Bval, true)128 assert.Equal(t, config.Env.Obj.Ival, 1)129 assert.Equal(t, config.Env.Obj.I32, int32(32))130 assert.Equal(t, config.Env.Obj.I64, int64(64))131 assert.Equal(t, config.Env.Obj.Str, "str")132 })133 t.Run("Cover vars", func(t *testing.T) {134 os.Setenv("COVER_STR", "cover_str")135 config := Config{}136 config.Cover.Str = "str"137 gc := New()138 gc.ParseEnv(&config)139 os.Unsetenv("COVER_STR")140 assert.Equal(t, config.Cover.Str, "cover_str")141 })142}...
write_test_main_test.go
Source:write_test_main_test.go
1package test2import (3 "go/parser"4 "go/token"5 "os"6 "testing"7 "github.com/stretchr/testify/assert"8)9func TestParseTestSources(t *testing.T) {10 descr, err := parseTestSources([]string{"tools/please_go/test/test_data/test/example_test.go"})11 assert.NoError(t, err)12 assert.Equal(t, "buildgo", descr.Package)13 assert.Equal(t, "", descr.Main)14 functions := []string{15 "TestReadPkgdef",16 "TestReadCopiedPkgdef",17 "TestFindCoverVars",18 "TestFindCoverVarsFailsGracefully",19 "TestFindCoverVarsReturnsNothingForEmptyPath",20 }21 assert.Equal(t, functions, descr.TestFunctions)22}23func TestParseTestSourcesWithMain(t *testing.T) {24 descr, err := parseTestSources([]string{"tools/please_go/test/test_data/main/example_test_main.go"})25 assert.NoError(t, err)26 assert.Equal(t, "parse", descr.Package)27 assert.Equal(t, "TestMain", descr.Main)28 functions := []string{29 "TestParseSourceBuildLabel",30 "TestParseSourceRelativeBuildLabel",31 "TestParseSourceFromSubdirectory",32 "TestParseSourceFromOwnedSubdirectory",33 "TestParseSourceWithParentPath",34 "TestParseSourceWithAbsolutePath",35 "TestAddTarget",36 }37 assert.Equal(t, functions, descr.TestFunctions)38}39func TestParseTestSourcesFailsGracefully(t *testing.T) {40 _, err := parseTestSources([]string{"wibble"})41 assert.Error(t, err)42}43func TestWriteTestMain(t *testing.T) {44 err := WriteTestMain("test_pkg", []string{"tools/please_go/test/test_data/test/example_test.go"}, "test.go", false, []CoverVar{}, false, true)45 assert.NoError(t, err)46 // It's not really practical to assert the contents of the file in great detail.47 // We'll do the obvious thing of asserting that it is valid Go source.48 f, err := parser.ParseFile(token.NewFileSet(), "test.go", nil, 0)49 assert.NoError(t, err)50 assert.Equal(t, "main", f.Name.Name)51}52func TestWriteTestMainWithCoverage(t *testing.T) {53 err := WriteTestMain("test_package", []string{"tools/please_go/test/test_data/test/example_test.go"}, "test.go", true, []CoverVar{{54 Dir: "tools/please_go/test/test_data",55 ImportPath: "core",56 Var: "GoCover_lock_go",57 File: "tools/please_go/test/test_data/lock.go",58 }}, false, false)59 assert.NoError(t, err)60 // It's not really practical to assert the contents of the file in great detail.61 // We'll do the obvious thing of asserting that it is valid Go source.62 f, err := parser.ParseFile(token.NewFileSet(), "test.go", nil, 0)63 assert.NoError(t, err)64 assert.Equal(t, "main", f.Name.Name)65}66func TestWriteTestMainWithBenchmark(t *testing.T) {67 err := WriteTestMain("test_package", []string{"tools/please_go/test/test_data/bench/example_benchmark_test.go"}, "test.go", true, []CoverVar{}, true, true)68 assert.NoError(t, err)69 // It's not really practical to assert the contents of the file in great detail.70 // We'll do the obvious thing of asserting that it is valid Go source.71 f, err := parser.ParseFile(token.NewFileSet(), "test.go", nil, 0)72 assert.NoError(t, err)73 assert.Equal(t, "main", f.Name.Name)74 test, err := os.ReadFile("test.go")75 assert.NoError(t, err)76 assert.Contains(t, string(test), "BenchmarkExample")77}78func TestExtraImportPaths(t *testing.T) {79 assert.Equal(t, extraImportPaths("core", "core", []CoverVar{80 {ImportPath: "core"},81 {ImportPath: "output"},82 }), []string{83 "core \"core\"",84 "_cover0 \"core\"",85 "_cover1 \"output\"",86 })87}88func TestExtraImportPathsWithImportPath(t *testing.T) {89 assert.Equal(t, extraImportPaths("core", "core", []CoverVar{90 {ImportPath: "github.com/thought-machine/please/src/core"},91 {ImportPath: "github.com/thought-machine/please/output"},92 }), []string{93 "core \"core\"",94 "_cover0 \"github.com/thought-machine/please/src/core\"",95 "_cover1 \"github.com/thought-machine/please/output\"",96 })97}...
clean_test.go
Source:clean_test.go
...7// go test -run TestBasic -v ./code8// see coverage:9// go test -run TestBasic -coverprofile=cover.out -v ./code ;go tool cover -html=cover.out10func TestBasic(t *testing.T) {11 f := parseFile("testdata/basic.go.txt")12 s := Clean(f, CleanOpts{})13 t.Logf("%s", s)14 if strings.Contains(s, "TODO:") {15 t.Fatalf("contains TODO")16 }17}18func parseFile(f string) *ast.File {19 fset, ast, content, err := ParseFile(f)20 if err != nil {21 panic(err)22 }23 _ = fset24 _ = content25 return ast26}...
parseFile
Using AI Code Generation
1import (2func main() {3 file, err := os.Open("1.go")4 if err != nil {5 fmt.Println("Error opening file")6 }7 defer file.Close()8 scanner := bufio.NewScanner(file)9 for scanner.Scan() {10 fmt.Println(scanner.Text())11 }12 if err := scanner.Err(); err != nil {13 fmt.Println("Error reading file")14 }15}16import "fmt"17func main(){18fmt.Println("Hello World")19}
parseFile
Using AI Code Generation
1import (2func main() {3 file, err := os.Open("1.go")4 if err != nil {5 log.Fatal(err)6 }7 defer file.Close()8 scanner := bufio.NewScanner(file)9 for scanner.Scan() {10 fmt.Println(scanner.Text())11 }12 if err := scanner.Err(); err != nil {13 log.Fatal(err)14 }15}16import (17func main() {18 file, err := os.Open("1.go")19 if err != nil {20 log.Fatal(err)21 }22 defer file.Close()23 reader := bufio.NewReader(file)24 data, _ := reader.Peek(5)25 fmt.Printf("Peeked at 5 bytes: %s26 line, _, err := reader.ReadLine()27 if err != nil {28 log.Fatal(err)29 }30 fmt.Printf("Read line: %s31 data, err = ioutil.ReadAll(reader)32 if err != nil {33 log.Fatal(err)34 }35 fmt.Printf("Read %d bytes36", len(data))37}38import (39func main() {40 file, err := os.Open("1.go")41 if err != nil {42 log.Fatal(err)43 }44 defer file.Close()
parseFile
Using AI Code Generation
1import java.io.File;2import java.io.IOException;3import java.util.ArrayList;4import java.util.List;5import java.util.Scanner;6public class cover {
parseFile
Using AI Code Generation
1import (2func main() {3 cover.ParseFile("1.go")4}5import (6func main() {7 cover.ParseFile("2.go")8}9import (10func main() {11 cover.ParseFile("4.go")12}13import (14func main() {15 cover.ParseFile("3.go")16}17import (18func main() {19 cover.ParseFile("6.go")20}21import (22func main() {23 cover.ParseFile("5.go")24}25import (26func main() {27 cover.ParseFile("8.go")28}29import (30func main() {31 cover.ParseFile("7.go")32}33import (34func main() {35 cover.ParseFile("10.go")36}37import (38func main() {39 cover.ParseFile("9.go")40}41import (
parseFile
Using AI Code Generation
1import java.io.File;2import java.io.IOException;3import java.util.ArrayList;4import java.util.List;5import java.util.Scanner;6public class Cover {7 private String name;8 private String author;9 private String publisher;10 private String year;11 private String pages;12 public Cover(String name, String author, String publisher, String year, String pages) {13 this.name = name;14 this.author = author;15 this.publisher = publisher;16 this.year = year;17 this.pages = pages;18 }19 public static List<Cover> parseFile(File file) throws IOException {20 List<Cover> covers = new ArrayList<>();21 try (Scanner scanner = new Scanner(file)) {22 while (scanner.hasNextLine()) {23 String[] line = scanner.nextLine().split(";");24 covers.add(new Cover(line[0], line[1], line[2], line[3], line[4]));25 }26 }27 return covers;28 }29 public String toString() {30 return "Cover{" +31 '}';32 }33}34import java.io.File;35import java.io.IOException;36import java.util.ArrayList;37import java.util.List;38import java.util.Scanner;39public class Cover {40 private String name;41 private String author;42 private String publisher;43 private String year;44 private String pages;45 public Cover(String name, String author, String publisher, String year, String pages) {46 this.name = name;47 this.author = author;48 this.publisher = publisher;49 this.year = year;50 this.pages = pages;51 }52 public static List<Cover> parseFile(File file) throws IOException {53 List<Cover> covers = new ArrayList<>();54 try (Scanner scanner = new Scanner(file)) {55 while (scanner.hasNextLine()) {56 String[] line = scanner.nextLine().split(";");57 covers.add(new Cover(line[0], line[1], line[2], line[3], line[4]));58 }59 }60 return covers;61 }
parseFile
Using AI Code Generation
1import (2func main() {3 c := cover.New()4 c.ParseFile("test.txt")5 fmt.Println(c)6}7import (8type Cover struct {9}10func New() *Cover {11 return &Cover{}12}13func (c *Cover) ParseFile(filename string) {14 file, err := os.Open(filename)15 if err != nil {16 fmt.Println(err)17 }18 defer file.Close()19 scanner := bufio.NewScanner(file)20 for scanner.Scan() {21 line := strings.Split(scanner.Text(), ":")22 switch line[0] {23 }24 }25}26func (c *Cover) String() string {27 return fmt.Sprintf("Title: %s28}
Automation Testing Tutorials
Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run Syzkaller automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Most used method in
- Merge
- MergeDiff
- Serialize
- TestMergeDiff
- TestPerLineCoverage
- fixUpPCs
- DoHTML
- DoRawCoverFiles
- DoRawCover
- DoFilterPCs
- convertToStats
- DoCSVFiles
- groupCoverByFilePrefixes
- DoHTMLTable
- groupCoverByModule
- DoModuleCover
- DoCSV
- fileContents
- perLineCoverage
- mergeRange
- mergeLine
- addFunctionCoverage
- processDir
- percent
- parseFile
- MakeReportGenerator
- prepareFileMap
- lazySymbolize
- getFile
- findSymbol
- testReportGenerator
- buildTestBinary
- generateReport
- checkCSVReport
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
