(#68) Added upper and lower bound utility functions

Author: s1hofmann

lib/provider/opencv/bound-value.function.spec.ts

@@ -0,0 +1,33 @@
+import { lowerBound, upperBound } from "./bound-value.function";
+
+describe("lowerBound function", () => {
+  it.each([
+    [5, 10, 1, 1],
+    [5, 5, 10, 10],
+    [5, 1, 10, 5],
+    [0, 0, 0, 0]
+  ])("Input: %f, Boundary: %f, minValue: %f, Expected: %f",
+    (input: number, boundary: number, minValue: number, expected: number) => {
+      // WHEN
+      const result = lowerBound(input, boundary, minValue);
+
+      // THEN
+      expect(result).toBe(expected);
+    });
+});
+
+describe("upperBound function", () => {
+  it.each([
+    [5, 10, 1, 5],
+    [5, 5, 10, 10],
+    [5, 1, 10, 10],
+    [5, 5, 5, 5]
+  ])("Input: %f, Boundary: %f, maxValue: %f, Expected: %f",
+    (input: number, boundary: number, maxValue: number, expected: number) => {
+      // WHEN
+      const result = upperBound(input, boundary, maxValue);
+
+      // THEN
+      expect(result).toBe(expected);
+    });
+});

lib/provider/opencv/bound-value.function.ts

@@ -0,0 +1,7 @@
+export function lowerBound(value: number, boundary: number, minValue: number): number {
+  return (value <= boundary) ? minValue : value;
+}
+
+export function upperBound(value: number, boundary: number, maxValue: number): number {
+  return (value >= boundary) ? maxValue : value;
+}