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// Copyright 2019 CUE Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package openapi_test
import (
"bytes"
"io/ioutil"
"os"
"path"
"path/filepath"
"strings"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/stretchr/testify/assert"
"golang.org/x/tools/txtar"
"cuelang.org/go/cue"
"cuelang.org/go/cue/errors"
"cuelang.org/go/cue/format"
"cuelang.org/go/encoding/json"
"cuelang.org/go/encoding/openapi"
"cuelang.org/go/encoding/yaml"
)
// TestDecode reads the testdata/*.txtar files, converts the contained
// JSON schema to CUE and compares it against the output.
//
// Use the --update flag to update test files with the corresponding output.
func TestDecode(t *testing.T) {
err := filepath.Walk("testdata/script", func(fullpath string, info os.FileInfo, err error) error {
_ = err
if !strings.HasSuffix(fullpath, ".txtar") {
return nil
}
t.Run(fullpath, func(t *testing.T) {
a, err := txtar.ParseFile(fullpath)
if err != nil {
t.Fatal(err)
}
cfg := &openapi.Config{PkgName: "foo"}
r := &cue.Runtime{}
var in *cue.Instance
var out, errout []byte
outIndex := -1
for i, f := range a.Files {
switch path.Ext(f.Name) {
case ".json":
in, err = json.Decode(r, f.Name, f.Data)
case ".yaml":
in, err = yaml.Decode(r, f.Name, f.Data)
case ".cue":
out = f.Data
outIndex = i
case ".err":
errout = f.Data
}
}
if err != nil {
t.Fatal(err)
}
expr, err := openapi.Extract(in, cfg)
if err != nil && errout == nil {
t.Fatal(errors.Details(err, nil))
}
got := []byte(nil)
if err != nil {
got = []byte(err.Error())
}
if !cmp.Equal(errout, got) {
t.Error(cmp.Diff(string(got), string(errout)))
}
if expr != nil {
b, err := format.Node(expr, format.Simplify())
if err != nil {
t.Fatal(err)
}
// verify the generated CUE.
if _, err = r.Compile(fullpath, b); err != nil {
t.Fatal(errors.Details(err, nil))
}
b = bytes.TrimSpace(b)
out = bytes.TrimSpace(out)
if !cmp.Equal(b, out) {
if *update {
a.Files[outIndex].Data = b
b = txtar.Format(a)
err = ioutil.WriteFile(fullpath, b, 0644)
if err != nil {
t.Fatal(err)
}
return
}
t.Error(cmp.Diff(string(out), string(b)))
}
}
})
return nil
})
assert.NoError(t, err)
}