fix: move and fix statistic related helpers implementation

[e-mobility-charging-stations-simulator.git] / test / utils / UtilsTest.ts

diff --git a/test/utils/UtilsTest.ts b/test/utils/UtilsTest.ts
index 9bf708027caf654f390b7bad646c4c94589cdb72..35294d07c2c25477eb5da93abfbcabc2640e7c3d 100644 (file)
--- a/test/utils/UtilsTest.ts
+++ b/test/utils/UtilsTest.ts
@@ -17,9 +17,9 @@ describe('Utils test suite', () => {
   });
 
   it('Verify sleep()', async () => {
-    const start = Date.now();
+    const start = performance.now();
     await Utils.sleep(1000);
-    const end = Date.now();
+    const end = performance.now();
     expect(end - start).toBeGreaterThanOrEqual(1000);
   });
 
@@ -329,4 +329,30 @@ describe('Utils test suite', () => {
     expect(Utils.isEmptyObject(new WeakMap())).toBe(false);
     expect(Utils.isEmptyObject(new WeakSet())).toBe(false);
   });
+
+  it('Verify median()', () => {
+    const array0 = [0.08];
+    expect(Utils.median(array0)).toBe(0.08);
+    const array1 = [0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03];
+    expect(Utils.median(array1)).toBe(3.05);
+  });
+
+  it('Verify percentile()', () => {
+    expect(Utils.percentile([], 25)).toBe(undefined);
+    const array0 = [0.08];
+    expect(Utils.percentile(array0, 50)).toBe(0.08);
+    const array1 = [0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03];
+    expect(Utils.percentile(array1, 0)).toBe(0.25);
+    expect(Utils.percentile(array1, 50)).toBe(3.05);
+    expect(Utils.percentile(array1, 80)).toBe(4.974);
+    expect(Utils.percentile(array1, 85)).toBe(5.131);
+    expect(Utils.percentile(array1, 90)).toBe(5.434);
+    expect(Utils.percentile(array1, 95)).toBe(5.736999999999999);
+    expect(Utils.percentile(array1, 100)).toBe(6.04);
+  });
+
+  it('Verify stdDeviation()', () => {
+    const array1 = [0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03];
+    expect(Utils.stdDeviation(array1)).toBe(2.0256064851429216);
+  });
 });