simplify account unlocking

accounts/accounts_test.go

@@ -18,7 +18,7 @@ func TestSign(t *testing.T) {
 	pass := "" // not used but required by API
 	a1, err := am.NewAccount(pass)
 	toSign := randentropy.GetEntropyCSPRNG(32)
-	am.Unlock(a1.Address, "")
+	am.Unlock(a1.Address, "", 0)
 
 	_, err = am.Sign(a1, toSign)
 	if err != nil {
@@ -58,6 +58,47 @@ func TestTimedUnlock(t *testing.T) {
 	if err != ErrLocked {
 		t.Fatal("Signing should've failed with ErrLocked timeout expired, got ", err)
 	}
+
+}
+
+func TestOverrideUnlock(t *testing.T) {
+	dir, ks := tmpKeyStore(t, crypto.NewKeyStorePassphrase)
+	defer os.RemoveAll(dir)
+
+	am := NewManager(ks)
+	pass := "foo"
+	a1, err := am.NewAccount(pass)
+	toSign := randentropy.GetEntropyCSPRNG(32)
+
+	// Unlock indefinitely
+	if err = am.Unlock(a1.Address, pass); err != nil {
+		t.Fatal(err)
+	}
+
+	// Signing without passphrase works because account is temp unlocked
+	_, err = am.Sign(a1, toSign)
+	if err != nil {
+		t.Fatal("Signing shouldn't return an error after unlocking, got ", err)
+	}
+
+	// reset unlock to a shorter period, invalidates the previous unlock
+	if err = am.TimedUnlock(a1.Address, pass, 100*time.Millisecond); err != nil {
+		t.Fatal(err)
+	}
+
+	// Signing without passphrase still works because account is temp unlocked
+	_, err = am.Sign(a1, toSign)
+	if err != nil {
+		t.Fatal("Signing shouldn't return an error after unlocking, got ", err)
+	}
+
+	// Signing fails again after automatic locking
+	time.Sleep(150 * time.Millisecond)
+	_, err = am.Sign(a1, toSign)
+	if err != ErrLocked {
+		t.Fatal("Signing should've failed with ErrLocked timeout expired, got ", err)
+	}
+
 }
 
 func tmpKeyStore(t *testing.T, new func(string) crypto.KeyStore2) (string, crypto.KeyStore2) {