fix(test): 1. solve testdata error 2. update shell to run test

circle-test.sh

@@ -1,10 +1,9 @@
 #!/bin/bash
 
-go env
-
 export GO111MODULE=on
 
 go generate
 go mod tidy
+go test -v `(go list ./... | grep "pkg/proxy")`
 # build
 go build -o bin/goproxy

pkg/proxy/proxy.go

@@ -10,6 +10,7 @@ import (
 	"path/filepath"
 	"strings"
 
+	"github.com/goproxyio/goproxy/pkg/cfg"
 	"github.com/goproxyio/goproxy/pkg/modfetch"
 	"github.com/goproxyio/goproxy/pkg/modfetch/codehost"
 	"github.com/goproxyio/goproxy/pkg/module"
@@ -23,9 +24,15 @@ type modInfo struct {
 	suf string
 }
 
-func NewProxy(cache string) http.Handler {
-	modfetch.PkgMod = filepath.Join(cache, "pkg", "mod")
+func setupEnv(basedir string) {
+	modfetch.QuietLookup = true // just to hide modfetch/cache.go#127
+	modfetch.PkgMod = filepath.Join(basedir, "pkg", "mod")
 	codehost.WorkRoot = filepath.Join(modfetch.PkgMod, "cache", "vcs")
+	cfg.CmdName = "mod download" // just to hide modfetch/fetch.go#L87
+}
+
+func NewProxy(cache string) http.Handler {
+	setupEnv(cache)
 
 	cacheDir = filepath.Join(modfetch.PkgMod, "cache", "download")
 	innerHandle = http.FileServer(http.Dir(cacheDir))

pkg/proxy/proxy_test.go

@@ -76,7 +76,7 @@ var _modInfoTests = []struct {
 		path:    "github.com/PuerkitoBio/goquery",
 		version: "v0.0.0-20181014175806-2af3d16e2bb8",
 		time:    time.Date(2018, 10, 14, 17, 58, 6, 0, time.UTC),
-		gomod:   `module github.com/PuerkitoBio/goquery\n`,
+		gomod:   "module github.com/PuerkitoBio/goquery\n",
 		zip: []string{
 			".gitattributes",
 			".gitignore",