Change XYSeries xValues to bigint array

Store xValues as bigint to avoid lossy conversion to number.

Signed-off-by: Patrick Tasse <patrick.tasse@ericsson.com>

Author: PatrickTasse

tsp-typescript-client/src/models/xy.ts

@@ -1,8 +1,8 @@
-import { array, assertNumber, createNormalizer } from '../protocol/serialization';
+import { array, assertNumber, createNormalizer, toBigInt } from '../protocol/serialization';
 
 export const XYSeries = createNormalizer<XYSeries>({
     seriesId: assertNumber,
-    xValues: array(Number), // lossy conversion if too big
+    xValues: array(toBigInt),
     yValues: array(assertNumber),
     tags: array(assertNumber),
 });
@@ -34,7 +34,7 @@ export interface XYSeries {
     /**
      * Series' X values
      */
-    xValues: number[];
+    xValues: bigint[];
 
     /**
      * Series' Y values

tsp-typescript-client/src/protocol/serialization.ts

@@ -200,3 +200,9 @@ export const assertNumber: Normalizer<number> =
         }
         return input;
     };
+
+export const toBigInt: Normalizer<bigint> =
+    function toBigInt(value: number | bigint): bigint {
+        return BigInt(value);
+    };
+    

tsp-typescript-client/src/protocol/tsp-client.test.ts

@@ -245,7 +245,7 @@ describe('TspClient Deserialization', () => {
       expect(serie.xValues).toHaveLength(3);
       expect(serie.yValues).toHaveLength(3);
       for (const xValue of serie.xValues) {
-        expect(typeof xValue).toEqual('number');
+        expect(typeof xValue).toEqual('bigint');
       }
       for (const yValue of serie.yValues) {
         expect(typeof yValue).toEqual('number');