/
gen_test.go
692 lines (606 loc) · 17.1 KB
/
gen_test.go
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package gen
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"os"
"os/exec"
"path"
"path/filepath"
"plugin"
"strings"
"testing"
"github.com/go-openapi/spec"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/swaggo/swag"
)
const searchDir = "../testdata/simple"
var outputTypes = []string{"go", "json", "yaml"}
func TestGen_Build(t *testing.T) {
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple/docs",
OutputTypes: outputTypes,
PropNamingStrategy: "",
}
assert.NoError(t, New().Build(config))
expectedFiles := []string{
filepath.Join(config.OutputDir, "docs.go"),
filepath.Join(config.OutputDir, "swagger.json"),
filepath.Join(config.OutputDir, "swagger.yaml"),
}
for _, expectedFile := range expectedFiles {
if _, err := os.Stat(expectedFile); os.IsNotExist(err) {
require.NoError(t, err)
}
_ = os.Remove(expectedFile)
}
}
func TestGen_SpecificOutputTypes(t *testing.T) {
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple/docs",
OutputTypes: []string{"go", "unknownType"},
PropNamingStrategy: "",
}
assert.NoError(t, New().Build(config))
tt := []struct {
expectedFile string
shouldExist bool
}{
{filepath.Join(config.OutputDir, "docs.go"), true},
{filepath.Join(config.OutputDir, "swagger.json"), false},
{filepath.Join(config.OutputDir, "swagger.yaml"), false},
}
for _, tc := range tt {
_, err := os.Stat(tc.expectedFile)
if tc.shouldExist {
if os.IsNotExist(err) {
require.NoError(t, err)
}
} else {
require.Error(t, err)
require.True(t, errors.Is(err, os.ErrNotExist))
}
_ = os.Remove(tc.expectedFile)
}
}
func TestGen_BuildInstanceName(t *testing.T) {
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple/docs",
OutputTypes: outputTypes,
PropNamingStrategy: "",
}
assert.NoError(t, New().Build(config))
goSourceFile := filepath.Join(config.OutputDir, "docs.go")
// Validate default registration name
expectedCode, err := ioutil.ReadFile(goSourceFile)
if err != nil {
require.NoError(t, err)
}
if !strings.Contains(
string(expectedCode),
"swag.Register(SwaggerInfo.InstanceName(), SwaggerInfo)",
) {
t.Fatal(errors.New("generated go code does not contain the correct default registration sequence"))
}
// Custom name
config.InstanceName = "custom"
goSourceFile = filepath.Join(config.OutputDir, config.InstanceName+"_"+"docs.go")
assert.NoError(t, New().Build(config))
expectedCode, err = ioutil.ReadFile(goSourceFile)
if err != nil {
require.NoError(t, err)
}
if !strings.Contains(
string(expectedCode),
"swag.Register(SwaggerInfo_custom.InstanceName(), SwaggerInfo_custom)",
) {
t.Fatal(errors.New("generated go code does not contain the correct registration sequence"))
}
// cleanup
expectedFiles := []string{
filepath.Join(config.OutputDir, config.InstanceName+"_"+"docs.go"),
filepath.Join(config.OutputDir, config.InstanceName+"_"+"swagger.json"),
filepath.Join(config.OutputDir, config.InstanceName+"_"+"swagger.yaml"),
}
for _, expectedFile := range expectedFiles {
if _, err := os.Stat(expectedFile); os.IsNotExist(err) {
require.NoError(t, err)
}
_ = os.Remove(expectedFile)
}
}
func TestGen_BuildSnakeCase(t *testing.T) {
config := &Config{
SearchDir: "../testdata/simple2",
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple2/docs",
OutputTypes: outputTypes,
PropNamingStrategy: swag.SnakeCase,
}
assert.NoError(t, New().Build(config))
expectedFiles := []string{
filepath.Join(config.OutputDir, "docs.go"),
filepath.Join(config.OutputDir, "swagger.json"),
filepath.Join(config.OutputDir, "swagger.yaml"),
}
for _, expectedFile := range expectedFiles {
if _, err := os.Stat(expectedFile); os.IsNotExist(err) {
require.NoError(t, err)
}
_ = os.Remove(expectedFile)
}
}
func TestGen_BuildLowerCamelcase(t *testing.T) {
config := &Config{
SearchDir: "../testdata/simple3",
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple3/docs",
OutputTypes: outputTypes,
PropNamingStrategy: "",
}
assert.NoError(t, New().Build(config))
expectedFiles := []string{
filepath.Join(config.OutputDir, "docs.go"),
filepath.Join(config.OutputDir, "swagger.json"),
filepath.Join(config.OutputDir, "swagger.yaml"),
}
for _, expectedFile := range expectedFiles {
if _, err := os.Stat(expectedFile); os.IsNotExist(err) {
require.NoError(t, err)
}
_ = os.Remove(expectedFile)
}
}
func TestGen_BuildDescriptionWithQuotes(t *testing.T) {
config := &Config{
SearchDir: "../testdata/quotes",
MainAPIFile: "./main.go",
OutputDir: "../testdata/quotes/docs",
OutputTypes: outputTypes,
MarkdownFilesDir: "../testdata/quotes",
}
require.NoError(t, New().Build(config))
expectedFiles := []string{
filepath.Join(config.OutputDir, "docs.go"),
filepath.Join(config.OutputDir, "swagger.json"),
filepath.Join(config.OutputDir, "swagger.yaml"),
}
for _, expectedFile := range expectedFiles {
if _, err := os.Stat(expectedFile); os.IsNotExist(err) {
require.NoError(t, err)
}
}
cmd := exec.Command("go", "build", "-buildmode=plugin", "github.com/swaggo/swag/testdata/quotes")
cmd.Dir = config.SearchDir
output, err := cmd.CombinedOutput()
if err != nil {
require.NoError(t, err, string(output))
}
p, err := plugin.Open(filepath.Join(config.SearchDir, "quotes.so"))
if err != nil {
require.NoError(t, err)
}
defer os.Remove("quotes.so")
readDoc, err := p.Lookup("ReadDoc")
if err != nil {
require.NoError(t, err)
}
jsonOutput := readDoc.(func() string)()
var jsonDoc interface{}
if err := json.Unmarshal([]byte(jsonOutput), &jsonDoc); err != nil {
require.NoError(t, err)
}
expectedJSON, err := ioutil.ReadFile(filepath.Join(config.SearchDir, "expected.json"))
if err != nil {
require.NoError(t, err)
}
assert.JSONEq(t, string(expectedJSON), jsonOutput)
}
func TestGen_jsonIndent(t *testing.T) {
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple/docs",
OutputTypes: outputTypes,
PropNamingStrategy: "",
}
gen := New()
gen.jsonIndent = func(data interface{}) ([]byte, error) {
return nil, errors.New("fail")
}
assert.Error(t, gen.Build(config))
}
func TestGen_jsonToYAML(t *testing.T) {
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple/docs",
OutputTypes: outputTypes,
PropNamingStrategy: "",
}
gen := New()
gen.jsonToYAML = func(data []byte) ([]byte, error) {
return nil, errors.New("fail")
}
assert.Error(t, gen.Build(config))
expectedFiles := []string{
filepath.Join(config.OutputDir, "docs.go"),
filepath.Join(config.OutputDir, "swagger.json"),
}
for _, expectedFile := range expectedFiles {
if _, err := os.Stat(expectedFile); os.IsNotExist(err) {
require.NoError(t, err)
}
_ = os.Remove(expectedFile)
}
}
func TestGen_SearchDirIsNotExist(t *testing.T) {
var swaggerConfDir, propNamingStrategy string
config := &Config{
SearchDir: "../isNotExistDir",
MainAPIFile: "./main.go",
OutputDir: swaggerConfDir,
OutputTypes: outputTypes,
PropNamingStrategy: propNamingStrategy,
}
assert.EqualError(t, New().Build(config), "dir: ../isNotExistDir does not exist")
}
func TestGen_MainAPiNotExist(t *testing.T) {
var swaggerConfDir, propNamingStrategy string
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./notExists.go",
OutputDir: swaggerConfDir,
OutputTypes: outputTypes,
PropNamingStrategy: propNamingStrategy,
}
assert.Error(t, New().Build(config))
}
func TestGen_OutputIsNotExist(t *testing.T) {
var propNamingStrategy string
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: "/dev/null",
OutputTypes: outputTypes,
PropNamingStrategy: propNamingStrategy,
}
assert.Error(t, New().Build(config))
}
func TestGen_FailToWrite(t *testing.T) {
outputDir := filepath.Join(os.TempDir(), "swagg", "test")
outputTypes := []string{"go", "json", "yaml"}
var propNamingStrategy string
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: outputDir,
OutputTypes: outputTypes,
PropNamingStrategy: propNamingStrategy,
}
err := os.MkdirAll(outputDir, 0755)
if err != nil {
require.NoError(t, err)
}
_ = os.RemoveAll(filepath.Join(outputDir, "swagger.yaml"))
err = os.Mkdir(filepath.Join(outputDir, "swagger.yaml"), 0755)
if err != nil {
require.NoError(t, err)
}
assert.Error(t, New().Build(config))
_ = os.RemoveAll(filepath.Join(outputDir, "swagger.json"))
err = os.Mkdir(filepath.Join(outputDir, "swagger.json"), 0755)
if err != nil {
require.NoError(t, err)
}
assert.Error(t, New().Build(config))
_ = os.RemoveAll(filepath.Join(outputDir, "docs.go"))
err = os.Mkdir(filepath.Join(outputDir, "docs.go"), 0755)
if err != nil {
require.NoError(t, err)
}
assert.Error(t, New().Build(config))
err = os.RemoveAll(outputDir)
if err != nil {
require.NoError(t, err)
}
}
func TestGen_configWithOutputDir(t *testing.T) {
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple/docs",
OutputTypes: outputTypes,
PropNamingStrategy: "",
}
assert.NoError(t, New().Build(config))
expectedFiles := []string{
filepath.Join(config.OutputDir, "docs.go"),
filepath.Join(config.OutputDir, "swagger.json"),
filepath.Join(config.OutputDir, "swagger.yaml"),
}
for _, expectedFile := range expectedFiles {
if _, err := os.Stat(expectedFile); os.IsNotExist(err) {
require.NoError(t, err)
}
_ = os.Remove(expectedFile)
}
}
func TestGen_configWithOutputTypesAll(t *testing.T) {
searchDir := "../testdata/simple"
outputTypes := []string{"go", "json", "yaml"}
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple/docs",
OutputTypes: outputTypes,
PropNamingStrategy: "",
}
assert.NoError(t, New().Build(config))
expectedFiles := []string{
path.Join(config.OutputDir, "docs.go"),
path.Join(config.OutputDir, "swagger.json"),
path.Join(config.OutputDir, "swagger.yaml"),
}
for _, expectedFile := range expectedFiles {
if _, err := os.Stat(expectedFile); os.IsNotExist(err) {
t.Fatal(err)
}
_ = os.Remove(expectedFile)
}
}
func TestGen_configWithOutputTypesSingle(t *testing.T) {
searchDir := "../testdata/simple"
outputTypes := []string{"go", "json", "yaml"}
for _, outputType := range outputTypes {
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple/docs",
OutputTypes: []string{outputType},
PropNamingStrategy: "",
}
assert.NoError(t, New().Build(config))
outFileName := "swagger"
if outputType == "go" {
outFileName = "docs"
}
expectedFiles := []string{
path.Join(config.OutputDir, outFileName+"."+outputType),
}
for _, expectedFile := range expectedFiles {
if _, err := os.Stat(expectedFile); os.IsNotExist(err) {
t.Fatal(err)
}
_ = os.Remove(expectedFile)
}
}
}
func TestGen_formatSource(t *testing.T) {
src := `package main
import "net
func main() {}
`
g := New()
res := g.formatSource([]byte(src))
assert.Equal(t, []byte(src), res, "Should return same content due to fmt fail")
src2 := `package main
import "fmt"
func main() {
fmt.Print("Hello world")
}
`
res = g.formatSource([]byte(src2))
assert.NotEqual(t, []byte(src2), res, "Should return fmt code")
}
type mockWriter struct {
hook func([]byte)
}
func (w *mockWriter) Write(data []byte) (int, error) {
if w.hook != nil {
w.hook(data)
}
return len(data), nil
}
func TestGen_writeGoDoc(t *testing.T) {
gen := New()
swapTemplate := packageTemplate
packageTemplate = `{{{`
err := gen.writeGoDoc("docs", nil, nil, &Config{})
assert.Error(t, err)
packageTemplate = `{{.Data}}`
swagger := &spec.Swagger{
VendorExtensible: spec.VendorExtensible{},
SwaggerProps: spec.SwaggerProps{
Info: &spec.Info{},
},
}
err = gen.writeGoDoc("docs", &mockWriter{}, swagger, &Config{})
assert.Error(t, err)
packageTemplate = `{{ if .GeneratedTime }}Fake Time{{ end }}`
err = gen.writeGoDoc("docs",
&mockWriter{
hook: func(data []byte) {
assert.Equal(t, "Fake Time", string(data))
},
}, swagger, &Config{GeneratedTime: true})
assert.NoError(t, err)
err = gen.writeGoDoc("docs",
&mockWriter{
hook: func(data []byte) {
assert.Equal(t, "", string(data))
},
}, swagger, &Config{GeneratedTime: false})
assert.NoError(t, err)
packageTemplate = swapTemplate
}
func TestGen_GeneratedDoc(t *testing.T) {
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple/docs",
OutputTypes: outputTypes,
PropNamingStrategy: "",
}
assert.NoError(t, New().Build(config))
goCMD, err := exec.LookPath("go")
assert.NoError(t, err)
cmd := exec.Command(goCMD, "build", filepath.Join(config.OutputDir, "docs.go"))
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
assert.NoError(t, cmd.Run())
expectedFiles := []string{
filepath.Join(config.OutputDir, "docs.go"),
filepath.Join(config.OutputDir, "swagger.json"),
filepath.Join(config.OutputDir, "swagger.yaml"),
}
for _, expectedFile := range expectedFiles {
if _, err := os.Stat(expectedFile); os.IsNotExist(err) {
require.NoError(t, err)
}
_ = os.Remove(expectedFile)
}
}
func TestGen_cgoImports(t *testing.T) {
config := &Config{
SearchDir: "../testdata/simple_cgo",
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple_cgo/docs",
OutputTypes: outputTypes,
PropNamingStrategy: "",
ParseDependency: true,
}
assert.NoError(t, New().Build(config))
expectedFiles := []string{
filepath.Join(config.OutputDir, "docs.go"),
filepath.Join(config.OutputDir, "swagger.json"),
filepath.Join(config.OutputDir, "swagger.yaml"),
}
for _, expectedFile := range expectedFiles {
if _, err := os.Stat(expectedFile); os.IsNotExist(err) {
require.NoError(t, err)
}
_ = os.Remove(expectedFile)
}
}
func TestGen_parseOverrides(t *testing.T) {
testCases := []struct {
Name string
Data string
Expected map[string]string
ExpectedError error
}{
{
Name: "replace",
Data: `replace github.com/foo/bar baz`,
Expected: map[string]string{
"github.com/foo/bar": "baz",
},
},
{
Name: "skip",
Data: `skip github.com/foo/bar`,
Expected: map[string]string{
"github.com/foo/bar": "",
},
},
{
Name: "comment",
Data: `// this is a comment
replace foo bar`,
Expected: map[string]string{
"foo": "bar",
},
},
{
Name: "ignore whitespace",
Data: `
replace foo bar`,
Expected: map[string]string{
"foo": "bar",
},
},
{
Name: "unknown directive",
Data: `foo`,
ExpectedError: fmt.Errorf("could not parse override: 'foo'"),
},
}
for _, tc := range testCases {
tc := tc
t.Run(tc.Name, func(t *testing.T) {
t.Parallel()
overrides, err := parseOverrides(strings.NewReader(tc.Data))
assert.Equal(t, tc.Expected, overrides)
assert.Equal(t, tc.ExpectedError, err)
})
}
}
func TestGen_TypeOverridesFile(t *testing.T) {
customPath := "/foo/bar/baz"
tmp, err := ioutil.TempFile("", "")
require.NoError(t, err)
defer os.Remove(tmp.Name())
config := &Config{
SearchDir: searchDir,
MainAPIFile: "./main.go",
OutputDir: "../testdata/simple/docs",
PropNamingStrategy: "",
}
t.Run("Default file is missing", func(t *testing.T) {
open = func(path string) (*os.File, error) {
assert.Equal(t, DefaultOverridesFile, path)
return nil, os.ErrNotExist
}
defer func() {
open = os.Open
}()
config.OverridesFile = DefaultOverridesFile
err := New().Build(config)
assert.NoError(t, err)
})
t.Run("Default file is present", func(t *testing.T) {
open = func(path string) (*os.File, error) {
assert.Equal(t, DefaultOverridesFile, path)
return tmp, nil
}
defer func() {
open = os.Open
}()
config.OverridesFile = DefaultOverridesFile
err := New().Build(config)
assert.NoError(t, err)
})
t.Run("Different file is missing", func(t *testing.T) {
open = func(path string) (*os.File, error) {
assert.Equal(t, customPath, path)
return nil, os.ErrNotExist
}
defer func() {
open = os.Open
}()
config.OverridesFile = customPath
err := New().Build(config)
assert.EqualError(t, err, "could not open overrides file: file does not exist")
})
t.Run("Different file is present", func(t *testing.T) {
open = func(path string) (*os.File, error) {
assert.Equal(t, customPath, path)
return tmp, nil
}
defer func() {
open = os.Open
}()
config.OverridesFile = customPath
err := New().Build(config)
assert.NoError(t, err)
})
}