.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/go/buildutil/overlay_test.go

   1 package buildutil_test
   2
   3 import (
   4         "go/build"
   5         "io/ioutil"
   6         "reflect"
   7         "strings"
   8         "testing"
   9
  10         "golang.org/x/tools/go/buildutil"
  11 )
  12
  13 func TestParseOverlayArchive(t *testing.T) {
  14         var tt = []struct {
  15                 in     string
  16                 out    map[string][]byte
  17                 hasErr bool
  18         }{
  19                 {
  20                         "a.go\n5\n12345",
  21                         map[string][]byte{"a.go": []byte("12345")},
  22                         false,
  23                 },
  24                 {
  25                         "a.go\n5\n1234",
  26                         nil,
  27                         true,
  28                 },
  29                 {
  30                         "a.go\n5\n12345b.go\n4\n1234",
  31                         map[string][]byte{"a.go": []byte("12345"), "b.go": []byte("1234")},
  32                         false,
  33                 },
  34         }
  35
  36         for _, test := range tt {
  37                 got, err := buildutil.ParseOverlayArchive(strings.NewReader(test.in))
  38                 if err == nil && test.hasErr {
  39                         t.Errorf("expected error for %q", test.in)
  40                 }
  41                 if err != nil && !test.hasErr {
  42                         t.Errorf("unexpected error %v for %q", err, test.in)
  43                 }
  44                 if !reflect.DeepEqual(got, test.out) {
  45                         t.Errorf("got %#v, want %#v", got, test.out)
  46                 }
  47         }
  48 }
  49
  50 func TestOverlay(t *testing.T) {
  51         ctx := &build.Default
  52         ov := map[string][]byte{
  53                 "/somewhere/a.go": []byte("file contents"),
  54         }
  55         names := []string{"/somewhere/a.go", "/somewhere//a.go"}
  56         ctx = buildutil.OverlayContext(ctx, ov)
  57         for _, name := range names {
  58                 f, err := buildutil.OpenFile(ctx, name)
  59                 if err != nil {
  60                         t.Errorf("unexpected error %v", err)
  61                 }
  62                 b, err := ioutil.ReadAll(f)
  63                 if err != nil {
  64                         t.Errorf("unexpected error %v", err)
  65                 }
  66                 if got, expected := string(b), string(ov["/somewhere/a.go"]); got != expected {
  67                         t.Errorf("read %q, expected %q", got, expected)
  68                 }
  69         }
  70 }