From 31f66b6fe945db655d8a185433d91fc5173bd4a8 Mon Sep 17 00:00:00 2001
From: Ian Ellis <ellisia@me.com>
Date: Sun, 4 Jun 2017 13:03:50 +0100
Subject: [PATCH] Cloned GrainsFile test from MinionConfig test

---
 .../salt-masterless/provisioner_test.go       | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/provisioner/salt-masterless/provisioner_test.go b/provisioner/salt-masterless/provisioner_test.go
index 2b7f3a026..2b40887d3 100644
--- a/provisioner/salt-masterless/provisioner_test.go
+++ b/provisioner/salt-masterless/provisioner_test.go
@@ -119,6 +119,29 @@ func TestProvisionerPrepare_MinionConfig_RemotePillarRoots(t *testing.T) {
 	}
 }
 
+func TestProvisionerPrepare_GrainsFile(t *testing.T) {
+	var p Provisioner
+	config := testConfig()
+
+	config["grains_file"] = "/i/dont/exist/i/think"
+	err := p.Prepare(config)
+	if err == nil {
+		t.Fatal("should have error")
+	}
+
+	tf, err := ioutil.TempFile("", "grains")
+	if err != nil {
+		t.Fatalf("error tempfile: %s", err)
+	}
+	defer os.Remove(tf.Name())
+
+	config["grains_file"] = tf.Name()
+	err = p.Prepare(config)
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
+}
+
 func TestProvisionerPrepare_LocalStateTree(t *testing.T) {
 	var p Provisioner
 	config := testConfig()