lbcd/interface_test.go
Dave Collins a27c37793b Add basic infrastructure for interface tests.
This is simply at start at providing generic interface tests.  The only
thing is tests so far is the empty database conditions on NewestSha, but
it adds infrastructure for creating and opening databases with special
type handling based on the database and necessary logic to teardown so
multiple backends can be tested simultaneously.

This and the next series of commits all discussed with drahn@.
2013-10-14 12:26:12 -05:00

54 lines
1.3 KiB
Go

// Copyright (c) 2013 Conformal Systems LLC.
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package btcdb_test
import (
"github.com/conformal/btcdb"
"testing"
)
// testNewestShaEmpty ensures the NewestSha returns the values expected by
// the interface contract.
func testNewestShaEmpty(t *testing.T, db btcdb.Db) {
sha, height, err := db.NewestSha()
if err != nil {
t.Errorf("NewestSha error %v", err)
}
if !sha.IsEqual(&zeroHash) {
t.Errorf("NewestSha wrong hash got: %s, want %s", sha, &zeroHash)
}
if height != -1 {
t.Errorf("NewestSha wrong height got: %s, want %s", height, -1)
}
}
// TestEmptyDB tests that empty databases are handled properly.
func TestEmptyDB(t *testing.T) {
for _, dbType := range btcdb.SupportedDBs() {
// Ensure NewestSha returns expected values for a newly created
// db.
db, teardown, err := createDB(dbType, "emptydb", false)
if err != nil {
t.Errorf("Failed to create test database %v", err)
return
}
testNewestShaEmpty(t, db)
// Ensure NewestSha still returns expected values for an empty
// database after reopen.
db.Close()
db, err = openDB(dbType, "emptydb")
if err != nil {
t.Errorf("Failed to open test database %v", err)
return
}
testNewestShaEmpty(t, db)
db.Close()
// Clean up the old db.
teardown()
}
}