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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package imports
import (
"path/filepath"
"reflect"
"runtime"
"testing"
"github.com/rogpeppe/go-internal/testenv"
)
func TestScan(t *testing.T) {
testenv.MustHaveGoBuild(t)
imports, testImports, err := ScanDir(filepath.Join(runtime.GOROOT(), "src/encoding/json"), nil)
if err != nil {
t.Fatal(err)
}
foundBase64 := false
for _, p := range imports {
if p == "encoding/base64" {
foundBase64 = true
}
if p == "encoding/binary" {
// A dependency but not an import
t.Errorf("json reported as importing encoding/binary but does not")
}
if p == "net/http" {
// A test import but not an import
t.Errorf("json reported as importing encoding/binary but does not")
}
}
if !foundBase64 {
t.Errorf("json missing import encoding/base64 (%q)", imports)
}
foundHTTP := false
for _, p := range testImports {
if p == "net/http" {
foundHTTP = true
}
if p == "unicode/utf16" {
// A package import but not a test import
t.Errorf("json reported as test-importing unicode/utf16 but does not")
}
}
if !foundHTTP {
t.Errorf("json missing test import net/http (%q)", testImports)
}
}
func TestScanStar(t *testing.T) {
testenv.MustHaveGoBuild(t)
imports, _, err := ScanDir("testdata/import1", map[string]bool{"*": true})
if err != nil {
t.Fatal(err)
}
want := []string{"import1", "import2", "import3", "import4"}
if !reflect.DeepEqual(imports, want) {
t.Errorf("ScanDir testdata/import1:\nhave %v\nwant %v", imports, want)
}
}
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