tests: add config file and feature flags tests

cryptfs/config_test.go

@@ -0,0 +1,71 @@
+package cryptfs
+
+import (
+	"fmt"
+	"testing"
+	"time"
+)
+
+func TestLoadV1(t *testing.T) {
+	_, _, err := LoadConfFile("config_test/v1.conf", "test")
+	if err == nil {
+		t.Errorf("Outdated v1 config file must fail to load but it didn't")
+	} else if testing.Verbose() {
+		fmt.Print(err)
+	}
+}
+
+// Load a known-good config file and verify that it takes at least 100ms
+// (brute-force protection)
+func TestLoadV2(t *testing.T) {
+	t1 := time.Now()
+
+	_, _, err := LoadConfFile("config_test/v2.conf", "foo")
+	if err != nil {
+		t.Errorf("Could not load v2 config file: %v", err)
+	}
+
+	elapsed := time.Since(t1)
+	if elapsed < 100 *time.Millisecond {
+		t.Errorf("scrypt calculation runs too fast: %d ms", elapsed / time.Millisecond)
+	}
+}
+
+func TestLoadV2PwdError(t *testing.T) {
+	if ! testing.Verbose() {
+		Warn.Disable()
+	}
+	_, _, err := LoadConfFile("config_test/v2.conf", "wrongpassword")
+	Warn.Enable()
+	if err == nil {
+		t.Errorf("Loading with wrong password must fail but it didn't")
+	}
+}
+
+func TestLoadV2Feature(t *testing.T) {
+	_, _, err := LoadConfFile("config_test/PlaintextNames.conf", "test")
+	if err != nil {
+		t.Errorf("Could not load v2 PlaintextNames config file: %v", err)
+	}
+}
+
+func TestLoadV2StrangeFeature(t *testing.T) {
+	_, _, err := LoadConfFile("config_test/StrangeFeature.conf", "test")
+	if err == nil {
+		t.Errorf("Loading unknown feature must fail but it didn't")
+	} else if testing.Verbose() {
+		fmt.Print(err)
+	}
+}
+
+func TestCreateConfFile(t *testing.T) {
+	err := CreateConfFile("config_test/tmp.conf", "test", false)
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, _, err = LoadConfFile("config_test/tmp.conf", "test")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+}

cryptfs/config_test/.gitignore

@@ -0,0 +1 @@
+tmp.conf

cryptfs/config_test/PlaintextNames.conf

@@ -0,0 +1,14 @@
+{
+	"EncryptedKey": "rG4u0argMq02V5G9Fa+gAaaHtNrj3wn7OZjP44hWOzO4yBFtn+Qn3PW4V6LMuKmGLEhyktCyWOI3K8lj",
+	"ScryptObject": {
+		"Salt": "bRjq1V63u5ML3FoTWx/GBXUhUVpTunOX3DPxS+yPjg0=",
+		"N": 65536,
+		"R": 8,
+		"P": 1,
+		"KeyLen": 32
+	},
+	"Version": 2,
+	"FeatureFlags": [
+		"PlaintextNames"
+	]
+}

cryptfs/config_test/StrangeFeature.conf

@@ -0,0 +1,14 @@
+{
+	"EncryptedKey": "rG4u0argMq02V5G9Fa+gAaaHtNrj3wn7OZjP44hWOzO4yBFtn+Qn3PW4V6LMuKmGLEhyktCyWOI3K8lj",
+	"ScryptObject": {
+		"Salt": "bRjq1V63u5ML3FoTWx/GBXUhUVpTunOX3DPxS+yPjg0=",
+		"N": 65536,
+		"R": 8,
+		"P": 1,
+		"KeyLen": 32
+	},
+	"Version": 2,
+	"FeatureFlags": [
+		"StrangeFeatureFlag"
+	]
+}

cryptfs/config_test/v1.conf

@@ -0,0 +1,11 @@
+{
+	"EncryptedKey": "t6YAvFQJvbv46c93bHQ5IZnvNz80DA9cohGoSPL/2M257LuIigow6jbr8b9HhnbDqHTCcz7aKkMDzneF",
+	"ScryptObject": {
+		"Salt": "yT4yQmmRmVNx2P0tJrUswk5SQzZaL6Z8kUteAoNJkXM=",
+		"N": 65536,
+		"R": 8,
+		"P": 1,
+		"KeyLen": 32
+	},
+	"Version": 1
+}

cryptfs/config_test/v2.conf

@@ -0,0 +1,11 @@
+{
+	"EncryptedKey": "RvxJnZWKTBSU21+7xbl08xlZyNyUCkpIqlK8Z51TUrRiBhqqNPxbdk1WXMvmOf/YzZ85Xbyz+DGM+SDf",
+	"ScryptObject": {
+		"Salt": "2OrFRfdW/5SanbMXM3TMINmfMO6oYU9awG+NZ77V8E8=",
+		"N": 65536,
+		"R": 8,
+		"P": 1,
+		"KeyLen": 32
+	},
+	"Version": 2
+}