1 files changed, 93 insertions, 0 deletions
diff --git a/indexer_test.go b/indexer_test.go
new file mode 100644
index 0000000..1b65c95
--- /dev/null
+++ b/indexer_test.go
@@ -0,0 +1,93 @@
+package git
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path"
+	"testing"
+)
+
+var (
+	// This is a packfile with three objects. The second is a delta which
+	// depends on the third, which is also a delta.
+	outOfOrderPack = []byte{
+		0x50, 0x41, 0x43, 0x4b, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x03,
+		0x32, 0x78, 0x9c, 0x63, 0x67, 0x00, 0x00, 0x00, 0x10, 0x00, 0x08, 0x76,
+		0xe6, 0x8f, 0xe8, 0x12, 0x9b, 0x54, 0x6b, 0x10, 0x1a, 0xee, 0x95, 0x10,
+		0xc5, 0x32, 0x8e, 0x7f, 0x21, 0xca, 0x1d, 0x18, 0x78, 0x9c, 0x63, 0x62,
+		0x66, 0x4e, 0xcb, 0xcf, 0x07, 0x00, 0x02, 0xac, 0x01, 0x4d, 0x75, 0x01,
+		0xd7, 0x71, 0x36, 0x66, 0xf4, 0xde, 0x82, 0x27, 0x76, 0xc7, 0x62, 0x2c,
+		0x10, 0xf1, 0xb0, 0x7d, 0xe2, 0x80, 0xdc, 0x78, 0x9c, 0x63, 0x62, 0x62,
+		0x62, 0xb7, 0x03, 0x00, 0x00, 0x69, 0x00, 0x4c, 0xde, 0x7d, 0xaa, 0xe4,
+		0x19, 0x87, 0x58, 0x80, 0x61, 0x09, 0x9a, 0x33, 0xca, 0x7a, 0x31, 0x92,
+		0x6f, 0xae, 0x66, 0x75,
+	}
+)
+
+func TestIndexerOutOfOrder(t *testing.T) {
+	t.Parallel()
+
+	tmpPath, err := ioutil.TempDir("", "git2go")
+	checkFatal(t, err)
+	defer os.RemoveAll(tmpPath)
+
+	var finalStats TransferProgress
+	idx, err := NewIndexer(tmpPath, nil, func(stats TransferProgress) ErrorCode {
+		finalStats = stats
+		return ErrOk
+	})
+	checkFatal(t, err)
+	defer idx.Free()
+
+	_, err = idx.Write(outOfOrderPack)
+	checkFatal(t, err)
+	oid, err := idx.Commit()
+	checkFatal(t, err)
+
+	// The packfile contains the hash as the last 20 bytes.
+	expectedOid := NewOidFromBytes(outOfOrderPack[len(outOfOrderPack)-20:])
+	if !expectedOid.Equal(oid) {
+		t.Errorf("mismatched packfile hash, expected %v, got %v", expectedOid, oid)
+	}
+	if finalStats.TotalObjects != 3 {
+		t.Errorf("mismatched transferred objects, expected 3, got %v", finalStats.TotalObjects)
+	}
+	if finalStats.ReceivedObjects != 3 {
+		t.Errorf("mismatched received objects, expected 3, got %v", finalStats.ReceivedObjects)
+	}
+	if finalStats.IndexedObjects != 3 {
+		t.Errorf("mismatched indexed objects, expected 3, got %v", finalStats.IndexedObjects)
+	}
+
+	odb, err := NewOdb()
+	checkFatal(t, err)
+	defer odb.Free()
+
+	backend, err := NewOdbBackendOnePack(path.Join(tmpPath, fmt.Sprintf("pack-%s.idx", oid.String())))
+	checkFatal(t, err)
+	// Transfer the ownership of the backend to the odb, no freeing needed.
+	err = odb.AddBackend(backend, 1)
+	checkFatal(t, err)
+
+	packfileObjects := 0
+	err = odb.ForEach(func(id *Oid) error {
+		packfileObjects += 1
+		return nil
+	})
+	checkFatal(t, err)
+	if packfileObjects != 3 {
+		t.Errorf("mismatched packfile objects, expected 3, got %v", packfileObjects)
+	}
+
+	// Inspect one of the well-known objects in the packfile.
+	obj, err := odb.Read(NewOidFromBytes([]byte{
+		0x19, 0x10, 0x28, 0x15, 0x66, 0x3d, 0x23, 0xf8, 0xb7, 0x5a, 0x47, 0xe7,
+		0xa0, 0x19, 0x65, 0xdc, 0xdc, 0x96, 0x46, 0x8c,
+	}))
+	checkFatal(t, err)
+	defer obj.Free()
+	if "foo" != string(obj.Data()) {
+		t.Errorf("mismatched packfile object contents, expected foo, got %q", string(obj.Data()))
+	}
+}