From 6c18c719d341a02da7234182b2206afa698fa56f Mon Sep 17 00:00:00 2001
From: David Pryor <david@macrofactorapp.com>
Date: Tue, 30 Jan 2024 10:15:41 -0500
Subject: [PATCH] Added working test for sending unit to backend

---
 lib/src/model/nutriments.dart   |  2 +-
 test/api_save_product_test.dart | 92 +++++++++++++++++++++++++++++++++
 2 files changed, 93 insertions(+), 1 deletion(-)

diff --git a/lib/src/model/nutriments.dart b/lib/src/model/nutriments.dart
index 179e1f20da..934eec2e11 100644
--- a/lib/src/model/nutriments.dart
+++ b/lib/src/model/nutriments.dart
@@ -61,7 +61,7 @@ class Nutriments extends JsonObject {
     final Nutrient nutrient,
     final PerSize perSize,
     final double? value, {
-    final Unit? unit = null,
+    final Unit? unit,
   }) {
     final Unit finalUnit = unit ?? nutrient.typicalUnit;
     _map[_getTag(nutrient, perSize)] = value;
diff --git a/test/api_save_product_test.dart b/test/api_save_product_test.dart
index ce71609e97..88e23ea48b 100644
--- a/test/api_save_product_test.dart
+++ b/test/api_save_product_test.dart
@@ -398,6 +398,98 @@ Like that:
       }
     }, skip: 'Works randomly');
 
+    double? amountInGramsTo(double? amount, Unit unit) {
+      final localAmount = amount;
+      if (localAmount == null) {
+        return null;
+      }
+      switch (unit) {
+        case Unit.G:
+          return localAmount;
+        case Unit.MILLI_G:
+          return localAmount / 1000;
+        case Unit.MICRO_G:
+          return localAmount / 1000000;
+        default:
+          return localAmount;
+      }
+    }
+
+    test('Can send _unit to server', () async {
+      const User USER = TestConstants.TEST_USER;
+      const double ENERGY = 365;
+      const double CARBOHYDRATES = 15;
+      const double PROTEINS = 6;
+      const double FAT = 0.1;
+      const double VITAMIN_B12 = 2;
+      const String BARCODE = '7340011364184';
+      const String PRODUCT_NAME = 'Chili beans';
+      final String nutrimentDataPer = PerSize.oneHundredGrams.offTag;
+
+      const PerSize perSize = PerSize.oneHundredGrams;
+      final Nutriments nutriments = Nutriments.empty()
+        ..setValue(Nutrient.energyKJ, perSize, ENERGY)
+        ..setValue(Nutrient.carbohydrates, perSize, (CARBOHYDRATES))
+        ..setValue(Nutrient.proteins, perSize, PROTEINS)
+        ..setValue(Nutrient.vitaminB12, perSize, VITAMIN_B12)
+        ..setValue(Nutrient.fat, perSize, FAT);
+
+      final Product newProduct = Product(
+        barcode: BARCODE,
+        productName: PRODUCT_NAME,
+        nutrimentDataPer: nutrimentDataPer,
+        nutriments: nutriments,
+      );
+
+      final Status status = await OpenFoodAPIClient.saveProduct(
+        USER,
+        newProduct,
+        uriHelper: uriHelper,
+      );
+
+      expect(status.status, 1);
+      expect(status.statusVerbose, 'fields saved');
+
+      final ProductResultV3 result = await OpenFoodAPIClient.getProductV3(
+        ProductQueryConfiguration(
+          BARCODE,
+          language: OpenFoodFactsLanguage.ENGLISH,
+          version: ProductQueryVersion.v3,
+        ),
+        user: USER,
+        uriHelper: uriHelper,
+      );
+
+      expect(result.status, ProductResultV3.statusSuccess);
+      expect(result.barcode, BARCODE);
+      final Product? searchedProduct = result.product;
+      expect(searchedProduct != null, true);
+      if (searchedProduct != null) {
+        expect(searchedProduct.barcode, BARCODE);
+        expect(searchedProduct.productName, PRODUCT_NAME);
+        expect(searchedProduct.nutrimentDataPer, nutrimentDataPer);
+        var searchedNutriments = searchedProduct.nutriments;
+        expect(searchedNutriments, isNotNull);
+        if (searchedNutriments != null) {
+          final List<Nutrient> nutrients = <Nutrient>[
+            Nutrient.energyKJ,
+            Nutrient.carbohydrates,
+            Nutrient.proteins,
+            Nutrient.fat,
+            Nutrient.vitaminB12,
+          ];
+          for (final Nutrient nutrient in nutrients) {
+            expect(
+              searchedNutriments.getValue(nutrient, perSize),
+              amountInGramsTo(
+                  nutriments.getValue(nutrient, perSize), nutrient.typicalUnit),
+              reason: 'should be the same values for $nutrient',
+            );
+          }
+        }
+      }
+    });
+
     String generateRandomString(int len) {
       var r = Random();
       return String.fromCharCodes(