Ensure tests are testing properly

Don't use mocks

componentDetection.test.ts

@@ -73,11 +73,11 @@ describe("ComponentDetection.addPackagesToManifests", () => {
   test("adds package as direct dependency when no top level referrers", () => {
     const manifests: any[] = [];
 
-    const mockPackage = {
+    const testPackage = {
       id: "test-package-1",
       packageUrl: "pkg:npm/test-package@1.0.0",
       isDevelopmentDependency: false,
-      topLevelReferrers: [],
+      topLevelReferrers: [], // Empty array = direct dependency
       locationsFoundAt: ["package.json"],
       containerDetailIds: [],
       containerLayerIds: [],
@@ -85,20 +85,25 @@ describe("ComponentDetection.addPackagesToManifests", () => {
       packageURL: { toString: () => "pkg:npm/test-package@1.0.0" }
     };
 
-    ComponentDetection.addPackagesToManifests([mockPackage] as any, manifests);
+    ComponentDetection.addPackagesToManifests([testPackage] as any, manifests);
 
     expect(manifests).toHaveLength(1);
     expect(manifests[0].name).toBe("package.json");
+
+    // Test the actual manifest state instead of mock calls
+    expect(manifests[0].directDependencies()).toHaveLength(1);
+    expect(manifests[0].indirectDependencies()).toHaveLength(0);
+    expect(manifests[0].countDependencies()).toBe(1);
   });
 
   test("adds package as indirect dependency when has top level referrers", () => {
     const manifests: any[] = [];
 
-    const mockPackage = {
+    const testPackage = {
       id: "test-package-2",
       packageUrl: "pkg:npm/test-package@2.0.0",
       isDevelopmentDependency: false,
-      topLevelReferrers: [{ packageUrl: "pkg:npm/parent-package@1.0.0" }],
+      topLevelReferrers: [{ packageUrl: "pkg:npm/parent-package@1.0.0" }], // Has referrers = indirect
       locationsFoundAt: ["package.json"],
       containerDetailIds: [],
       containerLayerIds: [],
@@ -106,28 +111,24 @@ describe("ComponentDetection.addPackagesToManifests", () => {
       packageURL: { toString: () => "pkg:npm/test-package@2.0.0" }
     };
 
-    ComponentDetection.addPackagesToManifests([mockPackage] as any, manifests);
+    ComponentDetection.addPackagesToManifests([testPackage] as any, manifests);
 
     expect(manifests).toHaveLength(1);
     expect(manifests[0].name).toBe("package.json");
+
+    expect(manifests[0].directDependencies()).toHaveLength(0);
+    expect(manifests[0].indirectDependencies()).toHaveLength(1);
+    expect(manifests[0].countDependencies()).toBe(1);
   });
 
-  test("reuses existing manifest when same location found", () => {
-    let directDependencyCallCount = 0;
-    let indirectDependencyCallCount = 0;
+  test("adds package as indirect dependency when top level referrer is itself", () => {
+    const manifests: any[] = [];
 
-    const existingManifest = {
-      name: "package.json",
-      addDirectDependency: () => { directDependencyCallCount++; },
-      addIndirectDependency: () => { indirectDependencyCallCount++; }
-    };
-    const manifests: any[] = [existingManifest];
-
-    const mockPackage = {
+    const testPackage = {
       id: "test-package-3",
       packageUrl: "pkg:npm/test-package@3.0.0",
       isDevelopmentDependency: false,
-      topLevelReferrers: [],
+      topLevelReferrers: [{ packageUrl: "pkg:npm/test-package@3.0.0" }], // Self-reference case
       locationsFoundAt: ["package.json"],
       containerDetailIds: [],
       containerLayerIds: [],
@@ -135,11 +136,92 @@ describe("ComponentDetection.addPackagesToManifests", () => {
       packageURL: { toString: () => "pkg:npm/test-package@3.0.0" }
     };
 
-    ComponentDetection.addPackagesToManifests([mockPackage] as any, manifests);
+    ComponentDetection.addPackagesToManifests([testPackage] as any, manifests);
 
     expect(manifests).toHaveLength(1);
-    expect(manifests[0]).toBe(existingManifest);
-    expect(directDependencyCallCount).toBe(1);
-    expect(indirectDependencyCallCount).toBe(0);
+    expect(manifests[0].name).toBe("package.json");
+
+    // Self-referencing packages are currently treated as indirect - this might be a bug to investigate
+    expect(manifests[0].directDependencies()).toHaveLength(0);
+    expect(manifests[0].indirectDependencies()).toHaveLength(1);
+    expect(manifests[0].countDependencies()).toBe(1);
+  });
+
+  test("handles multiple packages with mixed dependency types", () => {
+    const manifests: any[] = [];
+
+    const directTestPackage = {
+      id: "direct-package",
+      packageUrl: "pkg:npm/direct-package@1.0.0",
+      isDevelopmentDependency: false,
+      topLevelReferrers: [], // Direct
+      locationsFoundAt: ["package.json"],
+      containerDetailIds: [],
+      containerLayerIds: [],
+      packageID: () => "pkg:npm/direct-package@1.0.0",
+      packageURL: { toString: () => "pkg:npm/direct-package@1.0.0" }
+    };
+
+    const indirectTestPackage = {
+      id: "indirect-package",
+      packageUrl: "pkg:npm/indirect-package@1.0.0",
+      isDevelopmentDependency: false,
+      topLevelReferrers: [{ packageUrl: "pkg:npm/parent@1.0.0" }], // Indirect
+      locationsFoundAt: ["package.json"],
+      containerDetailIds: [],
+      containerLayerIds: [],
+      packageID: () => "pkg:npm/indirect-package@1.0.0",
+      packageURL: { toString: () => "pkg:npm/indirect-package@1.0.0" }
+    };
+
+    ComponentDetection.addPackagesToManifests([directTestPackage, indirectTestPackage] as any, manifests);
+
+    expect(manifests).toHaveLength(1);
+    expect(manifests[0].name).toBe("package.json");
+
+    expect(manifests[0].directDependencies()).toHaveLength(1);
+    expect(manifests[0].indirectDependencies()).toHaveLength(1);
+    expect(manifests[0].countDependencies()).toBe(2);
+  });
+
+  test("creates separate manifests for different locations", () => {
+    const manifests: any[] = [];
+
+    const packageJsonTestPackage = {
+      id: "package-json-dep",
+      packageUrl: "pkg:npm/package-json-dep@1.0.0",
+      isDevelopmentDependency: false,
+      topLevelReferrers: [],
+      locationsFoundAt: ["package.json"],
+      containerDetailIds: [],
+      containerLayerIds: [],
+      packageID: () => "pkg:npm/package-json-dep@1.0.0",
+      packageURL: { toString: () => "pkg:npm/package-json-dep@1.0.0" }
+    };
+
+    const csprojTestPackage = {
+      id: "csproj-dep",
+      packageUrl: "pkg:nuget/csproj-dep@1.0.0",
+      isDevelopmentDependency: false,
+      topLevelReferrers: [],
+      locationsFoundAt: ["project.csproj"],
+      containerDetailIds: [],
+      containerLayerIds: [],
+      packageID: () => "pkg:nuget/csproj-dep@1.0.0",
+      packageURL: { toString: () => "pkg:nuget/csproj-dep@1.0.0" }
+    };
+
+    ComponentDetection.addPackagesToManifests([packageJsonTestPackage, csprojTestPackage] as any, manifests);
+
+    expect(manifests).toHaveLength(2);
+
+    const packageJsonManifest = manifests.find(m => m.name === "package.json");
+    const csprojManifest = manifests.find(m => m.name === "project.csproj");
+
+    expect(packageJsonManifest).toBeDefined();
+    expect(csprojManifest).toBeDefined();
+
+    expect(packageJsonManifest.countDependencies()).toBe(1);
+    expect(csprojManifest.countDependencies()).toBe(1);
   });
 });