feat: First operational instance with just add

test/_pocomath.mjs

@@ -0,0 +1,10 @@
+import assert from 'assert'
+import math from '../pocomath.mjs'
+
+describe('The default full pocomath instance "math"', () => {
+   it('can add numbers', () => {
+      assert.strictEqual(math.add(3, 4), 7)
+      assert.strictEqual(math.add(1.5, 2.5, 3.5), 7.5)
+      assert.strictEqual(math.add(Infinity), Infinity)
+   })
+})