fixed: correct field name for capcha validation result's field

Author: jwfing

core/src/main/java/cn/leancloud/gson/GeneralFieldMappingObjectAdapter.java

@@ -89,6 +89,9 @@ public T read(JsonReader jsonReader) throws IOException {
         jsonReader.peek();
         try {
           Field field = result.getClass().getDeclaredField(identifyFieldName);
+          if (null == valueType || null == field) {
+            continue;
+          }
           field.setAccessible(true);
           Object value = null;
           if (valueType.equals(String.class)) {

core/src/main/java/cn/leancloud/gson/GsonWrapper.java

@@ -36,7 +36,7 @@ public class GsonWrapper {
     put("captcha_url", String.class);
   }};
   static final Map<String, Type> captchaValidateResultFields = new HashMap<String, Type>() {{
-    put("validateToken", String.class);
+    put("validate_token", String.class);
   }};
 
   static final Gson gson = new GsonBuilder().serializeNulls()

core/src/test/java/cn/leancloud/sms/LCSMSTest.java

@@ -1,9 +1,12 @@
 package cn.leancloud.sms;
 
 import cn.leancloud.Configure;
+import cn.leancloud.LCLogger;
+import cn.leancloud.core.LeanCloud;
 import cn.leancloud.types.LCNull;
 import io.reactivex.Observer;
 import io.reactivex.disposables.Disposable;
+import io.reactivex.functions.Consumer;
 import junit.framework.Test;
 import junit.framework.TestCase;
 import junit.framework.TestSuite;
@@ -194,4 +197,60 @@ public void onComplete() {
       }
     });
   }
+
+  public void testCaptcha() throws Exception {
+    final CountDownLatch latch = new CountDownLatch(1);
+    testSuccess = false;
+    LCCaptchaOption option = new LCCaptchaOption();
+    option.setWidth(85);
+    option.setHeight(40);
+    LCCaptcha.requestCaptchaInBackground(option).subscribe(new Observer<LCCaptchaDigest>() {
+      @Override
+      public void onSubscribe(Disposable disposable) {
+
+      }
+
+      @Override
+      public void onNext(LCCaptchaDigest lcCaptchaDigest) {
+        System.out.println("Succeed to got digest: " + lcCaptchaDigest.getCaptchaUrl());
+        LCCaptcha.verifyCaptchaCodeInBackground("znca", lcCaptchaDigest).subscribe(new Observer<LCCaptchaValidateResult>() {
+          @Override
+          public void onSubscribe(Disposable disposable) {
+
+          }
+
+          @Override
+          public void onNext(LCCaptchaValidateResult lcCaptchaValidateResult) {
+            System.out.println("Succeed to got validateResult: " + lcCaptchaValidateResult);
+            testSuccess = true;
+            latch.countDown();
+          }
+
+          @Override
+          public void onError(Throwable throwable) {
+            throwable.printStackTrace();
+            latch.countDown();
+          }
+
+          @Override
+          public void onComplete() {
+
+          }
+        });
+      }
+
+      @Override
+      public void onError(Throwable throwable) {
+        throwable.printStackTrace();
+        latch.countDown();
+      }
+
+      @Override
+      public void onComplete() {
+
+      }
+    });
+    latch.await();
+    assertTrue(testSuccess);
+  }
 }