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48aef0c8a4
```bash for file in `cat diffys`; do printf '%s\n%s\n' "// Copyright 2021 Molecula Corp. All rights reserved." "$(cat $file)" >$file; done ```
49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
// Copyright 2021 Molecula Corp. All rights reserved.
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package pilosa
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import (
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"testing"
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. "github.com/molecula/featurebase/v2/vprint" // nolint:staticcheck
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)
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func TestRoaring_HasData(t *testing.T) {
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holder := newHolderWithTempPath(t, "roaring")
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idx, err := holder.CreateIndex("i", IndexOptions{})
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PanicOn(err)
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defer idx.Close()
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db, err := globalRoaringReg.OpenDBWrapper(idx.path, false, nil)
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PanicOn(err)
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db.SetHolder(idx.holder)
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// HasData should start out false.
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hasAnything, err := db.HasData()
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PanicOn(err)
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if hasAnything {
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t.Fatalf("HasData reported existing data on an empty database")
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}
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// check that HasData sees a committed record.
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field, shard := "f", uint64(123)
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tx := idx.holder.txf.NewTx(Txo{Write: writable, Index: idx, Shard: shard})
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defer tx.Rollback()
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f, err := idx.CreateField(field)
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PanicOn(err)
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_, err = f.SetBit(tx, 1, 1, nil)
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PanicOn(err)
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PanicOn(tx.Commit())
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hasAnything, err = db.HasData()
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if err != nil {
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t.Fatal(err)
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}
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if !hasAnything {
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t.Fatalf("HasData() reported no data on a database that has 'x' written to it")
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}
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}
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