other (#587): added an additional test case for num/num multiplication

CHANGELOG.md

@@ -26,7 +26,7 @@ To use development versions of Kipper download the
 - Support for complex string formatting (or also called templating) in the form of Python-like F-Strings.
   ([#287](https://github.com/Kipper-Lang/Kipper/issues/287)).
 - Support for string multiplication using the `*` operator.
-	([#478](https://github.com/Kipper-Lang/Kipper/issues/478)).
+  ([#478](https://github.com/Kipper-Lang/Kipper/issues/478)).
 - New valid conversions:
   - `void` to `str`.
   - `null` to `str`.

kipper/target-js/src/code-generator.ts

@@ -600,6 +600,7 @@ export class JavaScriptTargetCodeGenerator extends KipperTargetCodeGenerator {
 		const exp1: TranslatedExpression = await semanticData.leftOp.translateCtxAndChildren();
 		const exp2: TranslatedExpression = await semanticData.rightOp.translateCtxAndChildren();
 
+		// In this case it should be a string multiplication
 		if (semanticData.leftOp.getTypeSemanticData().evaluatedType.getCompilableType() === "str") {
 			return [stringRepeatFunction, "(", ...exp1, ", ", ...exp2, ")"];
 		}

test/module/core/errors/type-errors/arithmetic-operation.ts

@@ -330,6 +330,20 @@ describe("ArithmeticOperationTypeError", () => {
 	});
 
 	describe("NoError", () => {
+		describe("num*num", () => {
+			it("num*num", async () => {
+				let result: KipperCompileResult | undefined = undefined;
+				try {
+					result = await new KipperCompiler().compile("3 * 3;", defaultConfig);
+				} catch (e) {
+					assert.fail("Expected no 'ArithmeticOperationTypeError'");
+				}
+				assert.isDefined(result, "Expected defined compilation result");
+				assert.isDefined(result!!.programCtx, "Expected programCtx to be defined");
+				assert.isFalse(result!!.programCtx!!.hasFailed, "Expected no errors");
+			});
+		});
+
 		describe("*", () => {
 			it("str*num", async () => {
 				let result: KipperCompileResult | undefined = undefined;