🐛 fix for server not properly formatting floats (#215)

Author: ianardee

src/main/java/com/mindee/parsing/generated/GeneratedObject.java

@@ -32,8 +32,19 @@ public StringField asStringField() {
    * Represent the object as a standard {@link AmountField}.
    */
   public AmountField asAmountField() {
+    Double value;
+    Object rawValue = this.get("value");
+    if (rawValue instanceof Integer) {
+      value = ((Integer) rawValue).doubleValue();
+    }
+    else if (rawValue instanceof Double) {
+      value = (Double) rawValue;
+    }
+    else {
+      throw new ClassCastException("Cannot cast " + rawValue + " to Double");
+    }
     return new AmountField(
-      (Double) this.get("value"),
+      value,
       this.getConfidence(),
       this.getPolygon(),
       this.getPageId()

src/test/java/com/mindee/product/generated/GeneratedV1Test.java

@@ -243,4 +243,21 @@ else if (featureValue.isList()) {
       }
     }
   }
+
+  @Test
+  void whenAmountDeserialized_mustCastToDouble() {
+    GeneratedObject intObject = new GeneratedObject();
+    intObject.put("value", 5);
+    AmountField fieldFromInt = intObject.asAmountField();
+    Assertions.assertEquals(5.0, fieldFromInt.getValue());
+
+    GeneratedObject doubleObject = new GeneratedObject();
+    doubleObject.put("value", 5.0);
+    AmountField fieldFromDouble = doubleObject.asAmountField();
+    Assertions.assertEquals(5.0, fieldFromDouble.getValue());
+
+    GeneratedObject badStringObject = new GeneratedObject();
+    doubleObject.put("value", "I will fail miserably");
+    Assertions.assertThrows(ClassCastException.class, badStringObject::asAmountField);
+  }
 }