José Almeida
46 lines
1.1 KiB
Go
46 lines
1.1 KiB
Go
package installer
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import (
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"context"
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"errors"
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"io"
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"os"
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"path/filepath"
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"testing"
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)
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type cancelingAssetReader struct {
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cancel context.CancelFunc
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sent bool
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}
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func (r *cancelingAssetReader) Read(data []byte) (int, error) {
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if r.sent {
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return 0, io.EOF
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}
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r.sent = true
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n := copy(data, "partial-binary")
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r.cancel()
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return n, nil
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}
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func TestWriteReleaseAssetDoesNotPublishCanceledDownload(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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outPath := filepath.Join(t.TempDir(), "rust-analyzer")
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err := writeReleaseAsset(ctx, &cancelingAssetReader{cancel: cancel}, "rust-analyzer", outPath)
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if !errors.Is(err, context.Canceled) {
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t.Fatalf("writeReleaseAsset() error = %v, want context cancellation", err)
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}
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if _, err := os.Stat(outPath); !errors.Is(err, os.ErrNotExist) {
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t.Fatalf("published output stat error = %v, want not-exist", err)
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}
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matches, err := filepath.Glob(filepath.Join(filepath.Dir(outPath), ".rust-analyzer.tmp-*"))
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if err != nil {
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t.Fatal(err)
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}
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if len(matches) != 0 {
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t.Fatalf("temporary assets remain after cancellation: %v", matches)
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}
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}
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