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blob_test.go
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blob_test.go
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// Copyright 2010 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 sqlite_test
import (
. "github.com/gwenn/gosqlite"
"testing"
)
func TestBlob(t *testing.T) {
db := open(t)
defer db.Close()
err := db.Exec("CREATE TABLE test (content BLOB);")
checkNoError(t, err, "error creating table: %s")
s, err := db.Prepare("INSERT INTO test VALUES (?)")
checkNoError(t, err, "prepare error: %s")
if s == nil {
t.Fatal("statement is nil")
}
defer s.Finalize()
err = s.Exec(ZeroBlobLength(10))
checkNoError(t, err, "insert error: %s")
rowid := db.LastInsertRowid()
bw, err := db.NewBlobReadWriter("main", "test", "content", rowid)
checkNoError(t, err, "blob open error: %s")
defer bw.Close()
content := []byte("Clob")
n, err := bw.Write(content)
checkNoError(t, err, "blob write error: %s")
br, err := db.NewBlobReader("main", "test", "content", rowid)
checkNoError(t, err, "blob open error: %s")
defer br.Close()
size, err := br.Size()
checkNoError(t, err, "blob size error: %s")
content = make([]byte, size)
n, err = br.Read(content)
checkNoError(t, err, "blob read error: %s")
assertEquals(t, "expected %d bytes but got %d", 10, n)
//fmt.Printf("%#v\n", content)
br.Close()
}
func TestBlobMisuse(t *testing.T) {
db := open(t)
defer db.Close()
bw, err := db.NewBlobReadWriter("main", "test", "content", 0)
assert(t, "error expected", bw == nil && err != nil)
err = bw.Close()
assert(t, "error expected", err != nil)
}