Add a test that demonstrates unmarshalling behavior for `getrawtransa…

…ction` results.

frontend/service_test.go

@@ -0,0 +1,38 @@
+package frontend
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/zcash/lightwalletd/common"
+)
+
+func TestZcashdRpcReplyUnmarshalling(t *testing.T) {
+		var txinfo0 common.ZcashdRpcReplyGetrawtransaction
+		err0 := json.Unmarshal([]byte("{\"hex\": \"deadbeef\", \"height\": 123456}"), &txinfo0)
+		if err0 != nil {
+			t.Fatal("Failed to unmarshal tx with known height.")
+		}
+		if txinfo0.Height != 123456 {
+			t.Errorf("Unmarshalled incorrect height: got: %d, want: 123456.", txinfo0.Height)
+		}
+
+		var txinfo1 common.ZcashdRpcReplyGetrawtransaction
+		err1 := json.Unmarshal([]byte("{\"hex\": \"deadbeef\", \"height\": -1}"), &txinfo1)
+		if err1 != nil {
+			t.Fatal("failed to unmarshal tx not in main chain")
+		}
+		if txinfo1.Height != -1 {
+			t.Errorf("Unmarshalled incorrect height: got: %d, want: -1.", txinfo1.Height)
+		}
+
+		var txinfo2 common.ZcashdRpcReplyGetrawtransaction
+		err2 := json.Unmarshal([]byte("{\"hex\": \"deadbeef\"}"), &txinfo2)
+		if err2 != nil {
+			t.Fatal("failed to unmarshal reply lacking height data")
+		}
+		if txinfo2.Height != 0 {
+			t.Errorf("Unmarshalled incorrect height: got: %d, want: 0.", txinfo2.Height)
+		}
+}
+