Rename tests to test; add a few tests

test/Models/Units.spec.ts

@@ -0,0 +1,30 @@
+import {describe} from 'mocha'
+import {expect} from 'chai'
+import {Unit} from "../../Models/Unit";
+import {Denomination} from "../../Models/Denomination";
+
+describe("Unit", () => {
+
+        it("should convert a value back and forth", () => {
+
+            const unit = new Denomination({
+                "canonicalDenomination": "MW",
+                "alternativeDenomination": ["megawatts", "megawatt"],
+                "human": {
+                    "en": " megawatts",
+                    "nl": " megawatt"
+                },
+                "default": true
+            }, "test");
+
+            const canonical = unit.canonicalValue("5")
+            expect(canonical).eq( "5 MW")
+            const units = new Unit(["key"], [unit], false)
+            const [detected, detectedDenom] = units.findDenomination("5 MW")
+            expect(detected).eq( "5")
+            expect(detectedDenom).eq( unit)
+        }
+    )
+})
+
+