Added function unit test

Author: SebastianWendorf

typescript/test/core/integration/function-declarations.test.ts

@@ -25,6 +25,7 @@ describe("function declarations test", () => {
     const funDecls: Map<string, LCEFunctionDeclaration> = new Map();
     let dependencies: Map<string, Map<string, LCEDependency>>;
     let mainModule: LCEModule;
+    let indexModule: LCEModule;
 
     beforeAll(async () => {
         const projects = await processProjects(projectRootPath);
@@ -54,6 +55,12 @@ describe("function declarations test", () => {
         }
         mainModule = mainModuleConcept as LCEModule;
 
+        const indexModuleConcept = result.get(LCEModule.conceptId)?.find((mod) => (mod as LCEModule).fqn.localFqn === "./src/MyComponent/index.ts");
+        if (!indexModuleConcept) {
+            throw new Error("Could not find main module in result data");
+        }
+        indexModule = indexModuleConcept as LCEModule;
+
         dependencies = getDependenciesFromResult(result);
     });
 
@@ -540,4 +547,32 @@ describe("function declarations test", () => {
             1,
         );
     });
+
+    test("function within index.ts with single parameter of referenced class type", async () => {
+        const decl = funDecls.get('"./src/MyComponent".MyComponent');
+        expect(decl).toBeDefined();
+        if (decl) {
+            expect(decl.coordinates.fileName).toBe(indexModule.path);
+            expect(decl.fqn.globalFqn).toBe(resolveGlobalFqn(projectRootPath, '"./src/MyComponent".MyComponent'));
+            expect(decl.functionName).toBe("MyComponent");
+
+            expectPrimitiveType(decl.returnType, "number");
+
+            expect(decl.parameters).toHaveLength(1);
+            expectFunctionParameter(decl.parameters, 0, "props", false);
+            expectDeclaredType(decl.parameters[0]!.type, resolveGlobalFqn(projectRootPath, '"./src/MyComponent".MyComponentPropType'));
+
+            expect(decl.async).toBe(false);
+
+            expect(decl.typeParameters).toHaveLength(0);
+        }
+
+        expectDependency(
+            projectRootPath,
+            dependencies,
+            '"./src/MyComponent".MyComponent',
+            resolveGlobalFqn(projectRootPath, '"./src/MyComponent".MyComponentPropType'),
+            1,
+        );
+    });
 });

typescript/test/core/integration/sample-projects/function-declarations/src/MyComponent/index.ts

@@ -0,0 +1,6 @@
+
+type MyComponentPropType = number | string;
+
+export function MyComponent(props: MyComponentPropType) {
+    return 0;
+}