cleanup and fix locating for godog dependency

Этот коммит содержится в:
gedi 2016-06-13 23:32:04 +03:00
родитель d0f68b3fe1
коммит 2772b1df34
4 изменённых файлов: 43 добавлений и 316 удалений

108
ast.go
Просмотреть файл

@ -1,12 +1,6 @@
package godog
import (
"go/ast"
"go/build"
"go/token"
"path"
"strings"
)
import "go/ast"
func astContexts(f *ast.File) []string {
var contexts []string
@ -35,103 +29,3 @@ func astContexts(f *ast.File) []string {
}
return contexts
}
func astRemoveUnusedImports(f *ast.File) {
used := astUsedPackages(f)
isUsed := func(p string) bool {
for _, ref := range used {
if p == ref {
return true
}
}
return p == "_"
}
var decls []ast.Decl
for _, d := range f.Decls {
gen, ok := d.(*ast.GenDecl)
if ok && gen.Tok == token.IMPORT {
var specs []ast.Spec
for _, spec := range gen.Specs {
impspec := spec.(*ast.ImportSpec)
ipath := strings.Trim(impspec.Path.Value, `\"`)
check := astImportPathToName(ipath)
if impspec.Name != nil {
check = impspec.Name.Name
}
if isUsed(check) {
specs = append(specs, spec)
}
}
if len(specs) == 0 {
continue
}
gen.Specs = specs
}
decls = append(decls, d)
}
f.Decls = decls
}
func astDeleteTestMainFunc(f *ast.File) {
var decls []ast.Decl
var hadTestMain bool
for _, d := range f.Decls {
fun, ok := d.(*ast.FuncDecl)
if !ok {
decls = append(decls, d)
continue
}
if fun.Name.Name != "TestMain" {
decls = append(decls, fun)
} else {
hadTestMain = true
}
}
f.Decls = decls
if hadTestMain {
astRemoveUnusedImports(f)
}
}
type visitFn func(node ast.Node) ast.Visitor
func (fn visitFn) Visit(node ast.Node) ast.Visitor {
return fn(node)
}
func astUsedPackages(f *ast.File) []string {
var refs []string
var visitor visitFn
visitor = visitFn(func(node ast.Node) ast.Visitor {
if node == nil {
return visitor
}
switch v := node.(type) {
case *ast.SelectorExpr:
xident, ok := v.X.(*ast.Ident)
if !ok {
break
}
if xident.Obj != nil {
// if the parser can resolve it, it's not a package ref
break
}
refs = append(refs, xident.Name)
}
return visitor
})
ast.Walk(visitor, f)
return refs
}
// importPathToName finds out the actual package name, as declared in its .go files.
// If there's a problem, it falls back to using importPathToNameBasic.
func astImportPathToName(importPath string) (packageName string) {
if buildPkg, err := build.Import(importPath, "", 0); err == nil {
return buildPkg.Name
}
return path.Base(importPath)
}

Просмотреть файл

@ -1,76 +0,0 @@
package godog
import (
"go/parser"
"go/token"
"testing"
)
var astContextSrc = `package main
import (
"github.com/DATA-DOG/godog"
)
func myContext(s *godog.Suite) {
}`
var astTwoContextSrc = `package lib
import (
"github.com/DATA-DOG/godog"
)
func apiContext(s *godog.Suite) {
}
func dbContext(s *godog.Suite) {
}`
func astContextParse(src string, t *testing.T) []string {
fset := token.NewFileSet()
f, err := parser.ParseFile(fset, "", []byte(src), 0)
if err != nil {
t.Fatalf("unexpected error while parsing ast: %v", err)
}
return astContexts(f)
}
func TestShouldGetSingleContextFromSource(t *testing.T) {
actual := astContextParse(astContextSrc, t)
expect := []string{"myContext"}
if len(actual) != len(expect) {
t.Fatalf("number of found contexts do not match, expected %d, but got %d", len(expect), len(actual))
}
for i, c := range expect {
if c != actual[i] {
t.Fatalf("expected context '%s' at pos %d, but got: '%s'", c, i, actual[i])
}
}
}
func TestShouldGetTwoContextsFromSource(t *testing.T) {
actual := astContextParse(astTwoContextSrc, t)
expect := []string{"apiContext", "dbContext"}
if len(actual) != len(expect) {
t.Fatalf("number of found contexts do not match, expected %d, but got %d", len(expect), len(actual))
}
for i, c := range expect {
if c != actual[i] {
t.Fatalf("expected context '%s' at pos %d, but got: '%s'", c, i, actual[i])
}
}
}
func TestShouldNotFindAnyContextsInEmptyFile(t *testing.T) {
actual := astContextParse(`package main`, t)
if len(actual) != 0 {
t.Fatalf("expected no contexts to be found, but there was some: %v", actual)
}
}

Просмотреть файл

@ -1,162 +1,76 @@
package godog
import (
"bytes"
"go/format"
"go/parser"
"go/token"
"strings"
"testing"
)
var astMainFile = `package main
import "fmt"
func main() {
fmt.Println("hello")
}`
var astNormalFile = `package main
import "fmt"
func hello() {
fmt.Println("hello")
}`
var astTestMainFile = `package main
var astContextSrc = `package main
import (
"fmt"
"testing"
"os"
"github.com/DATA-DOG/godog"
)
func TestMain(m *testing.M) {
fmt.Println("hello")
os.Exit(0)
func MyContext(s *godog.Suite) {
}`
var astPackAliases = `package main
var astTwoContextSrc = `package lib
import (
"testing"
a "fmt"
b "fmt"
"github.com/DATA-DOG/godog"
)
func TestMain(m *testing.M) {
a.Println("a")
b.Println("b")
func ApiContext(s *godog.Suite) {
}
func DBContext(s *godog.Suite) {
}`
var astAnonymousImport = `package main
import (
"testing"
_ "github.com/go-sql-driver/mysql"
)
func TestMain(m *testing.M) {
}`
var astLibrarySrc = `package lib
import "fmt"
func test() {
fmt.Println("hello")
}`
var astInternalPackageSrc = `package godog
import "fmt"
func test() {
fmt.Println("hello")
}`
func astProcess(src string, t *testing.T) string {
func astContextParse(src string, t *testing.T) []string {
fset := token.NewFileSet()
f, err := parser.ParseFile(fset, "", []byte(src), 0)
if err != nil {
t.Fatalf("unexpected error while parsing ast: %v", err)
}
astDeleteTestMainFunc(f)
var buf bytes.Buffer
if err := format.Node(&buf, fset, f); err != nil {
t.Fatalf("failed to build source file: %v", err)
return astContexts(f)
}
return buf.String()
func TestShouldGetSingleContextFromSource(t *testing.T) {
actual := astContextParse(astContextSrc, t)
expect := []string{"MyContext"}
if len(actual) != len(expect) {
t.Fatalf("number of found contexts do not match, expected %d, but got %d", len(expect), len(actual))
}
func TestShouldCleanTestMainFromSimpleTestFile(t *testing.T) {
actual := strings.TrimSpace(astProcess(astTestMainFile, t))
expect := `package main`
if actual != expect {
t.Fatalf("expected output does not match: %s", actual)
for i, c := range expect {
if c != actual[i] {
t.Fatalf("expected context '%s' at pos %d, but got: '%s'", c, i, actual[i])
}
}
}
func TestShouldCleanTestMainFromFileWithPackageAliases(t *testing.T) {
actual := strings.TrimSpace(astProcess(astPackAliases, t))
expect := `package main`
func TestShouldGetTwoContextsFromSource(t *testing.T) {
actual := astContextParse(astTwoContextSrc, t)
expect := []string{"ApiContext", "DBContext"}
if actual != expect {
t.Fatalf("expected output does not match: %s", actual)
if len(actual) != len(expect) {
t.Fatalf("number of found contexts do not match, expected %d, but got %d", len(expect), len(actual))
}
for i, c := range expect {
if c != actual[i] {
t.Fatalf("expected context '%s' at pos %d, but got: '%s'", c, i, actual[i])
}
}
}
func TestShouldNotModifyNormalFile(t *testing.T) {
actual := strings.TrimSpace(astProcess(astNormalFile, t))
expect := astNormalFile
func TestShouldNotFindAnyContextsInEmptyFile(t *testing.T) {
actual := astContextParse(`package main`, t)
if actual != expect {
t.Fatalf("expected output does not match: %s", actual)
}
}
func TestShouldNotModifyMainFile(t *testing.T) {
actual := strings.TrimSpace(astProcess(astMainFile, t))
expect := astMainFile
if actual != expect {
t.Fatalf("expected output does not match: %s", actual)
}
}
func TestShouldMaintainAnonymousImport(t *testing.T) {
actual := strings.TrimSpace(astProcess(astAnonymousImport, t))
expect := `package main
import (
_ "github.com/go-sql-driver/mysql"
)`
if actual != expect {
t.Fatalf("expected output does not match: %s", actual)
}
}
func TestShouldNotModifyLibraryPackageSource(t *testing.T) {
actual := strings.TrimSpace(astProcess(astLibrarySrc, t))
expect := astLibrarySrc
if actual != expect {
t.Fatalf("expected output does not match: %s", actual)
}
}
func TestShouldNotModifyGodogPackageSource(t *testing.T) {
actual := strings.TrimSpace(astProcess(astInternalPackageSrc, t))
expect := astInternalPackageSrc
if actual != expect {
t.Fatalf("expected output does not match: %s", actual)
if len(actual) != 0 {
t.Fatalf("expected no contexts to be found, but there was some: %v", actual)
}
}

Просмотреть файл

@ -2,7 +2,6 @@ package godog
import (
"bytes"
"encoding/json"
"fmt"
"go/build"
"go/parser"
@ -165,7 +164,11 @@ func locatePackage(try []string) (*build.Package, error) {
if err != nil {
continue
}
return build.ImportDir(abs, 0)
pkg, err := build.ImportDir(abs, 0)
if err != nil {
continue
}
return pkg, nil
}
return nil, fmt.Errorf("failed to find godog package in any of:\n%s", strings.Join(try, "\n"))
}
@ -214,11 +217,3 @@ func processPackageTestFiles(packs ...[]string) ([]string, error) {
}
return ctxs, nil
}
func debug(i interface{}) {
dat, err := json.MarshalIndent(i, "", " ")
if err != nil {
panic(err)
}
fmt.Fprintln(os.Stdout, string(dat))
}