adding quickfix

quickfix/log/file/file_util_test.go

@@ -0,0 +1,82 @@
+// Copyright (c) quickfixengine.org  All rights reserved.
+//
+// This file may be distributed under the terms of the quickfixengine.org
+// license as defined by quickfixengine.org and appearing in the file
+// LICENSE included in the packaging of this file.
+//
+// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING
+// THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A
+// PARTICULAR PURPOSE.
+//
+// See http://www.quickfixengine.org/LICENSE for licensing information.
+//
+// Contact ask@quickfixengine.org if any conditions of this licensing
+// are not clear to you.
+
+package file
+
+import (
+	"fmt"
+	"os"
+	"path"
+	"testing"
+
+	"quantex.com/qfixdpl/quickfix"
+	"github.com/stretchr/testify/require"
+)
+
+func requireNotFileExists(t *testing.T, fname string) {
+	_, err := os.Stat(fname)
+	require.NotNil(t, err)
+	require.True(t, os.IsNotExist(err))
+}
+
+func requireFileExists(t *testing.T, fname string) {
+	_, err := os.Stat(fname)
+	require.Nil(t, err)
+}
+
+func TestSessionIDFilename_MinimallyQualifiedSessionID(t *testing.T) {
+	// When the session ID is
+	sessionID := quickfix.SessionID{BeginString: "FIX.4.4", SenderCompID: "SENDER", TargetCompID: "TARGET"}
+
+	// Then the filename should be
+	require.Equal(t, "FIX.4.4-SENDER-TARGET", sessionIDFilenamePrefix(sessionID))
+}
+
+func TestSessionIDFilename_FullyQualifiedSessionID(t *testing.T) {
+	// When the session ID is
+	sessionID := quickfix.SessionID{
+		BeginString:      "FIX.4.4",
+		SenderCompID:     "A",
+		SenderSubID:      "B",
+		SenderLocationID: "C",
+		TargetCompID:     "D",
+		TargetSubID:      "E",
+		TargetLocationID: "F",
+		Qualifier:        "G",
+	}
+
+	// Then the filename should be
+	require.Equal(t, "FIX.4.4-A_B_C-D_E_F-G", sessionIDFilenamePrefix(sessionID))
+}
+
+func TestOpenOrCreateFile(t *testing.T) {
+	// When the file doesn't exist yet
+	fname := path.Join(os.TempDir(), fmt.Sprintf("TestOpenOrCreateFile-%d", os.Getpid()))
+	requireNotFileExists(t, fname)
+	defer os.Remove(fname)
+
+	// Then it should be created
+	f, err := openOrCreateFile(fname, 0664)
+	require.Nil(t, err)
+	requireFileExists(t, fname)
+
+	// When the file already exists
+	f.Close()
+
+	// Then it should be opened
+	f, err = openOrCreateFile(fname, 0664)
+	require.Nil(t, err)
+	require.Nil(t, f.Close())
+}