misc: Make build on macOS work

engine/resources/mount_linux_test.go

@@ -0,0 +1,76 @@
+// Mgmt
+// Copyright (C) 2013-2018+ James Shubin and the project contributors
+// Written by James Shubin <james@shubin.ca> and the project contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+// +build !root !darwin
+
+package resources
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+
+	fstab "github.com/deniswernert/go-fstab"
+)
+
+func TestMountExists(t *testing.T) {
+	const procMock1 = `/tmp/mount0 /mnt/proctest ext4 rw,seclabel,relatime,data=ordered 0 0` + "\n"
+
+	var mountExistsTests = []struct {
+		procMock []byte
+		in       *fstab.Mount
+		out      bool
+	}{
+		{
+			[]byte(procMock1),
+			&fstab.Mount{
+				Spec:    "/tmp/mount0",
+				File:    "/mnt/proctest",
+				VfsType: "ext4",
+				MntOps:  map[string]string{"defaults": ""},
+				Freq:    1,
+				PassNo:  1,
+			},
+			true,
+		},
+	}
+
+	file, err := ioutil.TempFile("", "proc")
+	if err != nil {
+		t.Errorf("error creating temp file: %v", err)
+		return
+	}
+	defer os.Remove(file.Name())
+	for _, test := range mountExistsTests {
+		if err := ioutil.WriteFile(file.Name(), test.procMock, 0664); err != nil {
+			t.Errorf("error writing proc file: %s: %v", file.Name(), err)
+			return
+		}
+		if err := ioutil.WriteFile(test.in.Spec, []byte{}, 0664); err != nil {
+			t.Errorf("error writing fstab file: %s: %v", file.Name(), err)
+			return
+		}
+		result, err := mountExists(file.Name(), test.in)
+		if err != nil {
+			t.Errorf("error checking if fstab entry %s exists: %v", test.in.String(), err)
+			return
+		}
+		if result != test.out {
+			t.Errorf("mountExistsTests test wanted: %t, got: %t", test.out, result)
+		}
+	}
+}