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testing.go
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testing.go
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// Package testing has the database tests.
// All database drivers must pass the Test function.
// This lives in it's own package so it stays a test dependency.
package testing
import (
"bytes"
"fmt"
"io"
"testing"
"time"
"github.com/mattes/migrate/database"
)
// Test runs tests against database implementations.
func Test(t *testing.T, d database.Driver, migration []byte) {
if migration == nil {
panic("test must provide migration reader")
}
TestNilVersion(t, d) // test first
TestLockAndUnlock(t, d)
TestRun(t, d, bytes.NewReader(migration))
TestDrop(t, d)
TestSetVersion(t, d) // also tests Version()
}
func TestNilVersion(t *testing.T, d database.Driver) {
v, _, err := d.Version()
if err != nil {
t.Fatal(err)
}
if v != database.NilVersion {
t.Fatalf("Version: expected version to be NilVersion (-1), got %v", v)
}
}
func TestLockAndUnlock(t *testing.T, d database.Driver) {
// add a timeout, in case there is a deadlock
done := make(chan bool, 1)
go func() {
timeout := time.After(15 * time.Second)
for {
select {
case <-done:
return
case <-timeout:
panic(fmt.Sprintf("Timeout after 15 seconds. Looks like a deadlock in Lock/UnLock.\n%#v", d))
}
}
}()
defer func() {
done <- true
}()
// run the locking test ...
if err := d.Lock(); err != nil {
t.Fatal(err)
}
// try to acquire lock again
if err := d.Lock(); err == nil {
t.Fatal("Lock: expected err not to be nil")
}
// unlock
if err := d.Unlock(); err != nil {
t.Fatal(err)
}
// try to lock
if err := d.Lock(); err != nil {
t.Fatal(err)
}
if err := d.Unlock(); err != nil {
t.Fatal(err)
}
}
func TestRun(t *testing.T, d database.Driver, migration io.Reader) {
if migration == nil {
panic("migration can't be nil")
}
if err := d.Run(migration); err != nil {
t.Fatal(err)
}
}
func TestDrop(t *testing.T, d database.Driver) {
if err := d.Drop(); err != nil {
t.Fatal(err)
}
}
func TestSetVersion(t *testing.T, d database.Driver) {
if err := d.SetVersion(1, true); err != nil {
t.Fatal(err)
}
// call again
if err := d.SetVersion(1, true); err != nil {
t.Fatal(err)
}
v, dirty, err := d.Version()
if err != nil {
t.Fatal(err)
}
if !dirty {
t.Fatal("expected dirty")
}
if v != 1 {
t.Fatal("expected version to be 1")
}
if err := d.SetVersion(2, false); err != nil {
t.Fatal(err)
}
// call again
if err := d.SetVersion(2, false); err != nil {
t.Fatal(err)
}
v, dirty, err = d.Version()
if err != nil {
t.Fatal(err)
}
if dirty {
t.Fatal("expected not dirty")
}
if v != 2 {
t.Fatal("expected version to be 2")
}
}