From f57ddbd862fba351e8f28bc425b4720e0f743fb6 Mon Sep 17 00:00:00 2001
From: Merlin Beutlberger <m.beutlberger@sap.com>
Date: Thu, 13 Jul 2023 08:42:55 +0200
Subject: [PATCH] [INTERNAL] Application: Re-throw ENOENT error as-is

---
 lib/specifications/types/Application.js      | 11 ++++++-----
 test/lib/specifications/types/Application.js | 13 +++++--------
 2 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/lib/specifications/types/Application.js b/lib/specifications/types/Application.js
index 693531827..05303eb92 100644
--- a/lib/specifications/types/Application.js
+++ b/lib/specifications/types/Application.js
@@ -124,7 +124,7 @@ class Application extends ComponentProject {
 		try {
 			return await this._getNamespaceFromManifestJson();
 		} catch (manifestJsonError) {
-			if (manifestJsonError.cause?.code !== "ENOENT") {
+			if (manifestJsonError.code !== "ENOENT") {
 				throw manifestJsonError;
 			}
 			// No manifest.json present
@@ -132,7 +132,7 @@ class Application extends ComponentProject {
 			try {
 				return await this._getNamespaceFromManifestAppDescVariant();
 			} catch (appDescVarError) {
-				if (appDescVarError.cause?.code === "ENOENT") {
+				if (appDescVarError.code === "ENOENT") {
 					// Fallback not possible: No manifest.appdescr_variant present
 					// => Throw error indicating missing manifest.json
 					// 	(do not mention manifest.appdescr_variant since it is only
@@ -221,11 +221,12 @@ class Application extends ComponentProject {
 				}
 				return JSON.parse(await resource.getString());
 			}).catch((err) => {
+				if (err.code === "ENOENT") {
+					throw err;
+				}
 				throw new Error(
 					`Failed to read ${filePath} for project ` +
-					`${this.getName()}: ${err.message}`, {
-						cause: err
-					});
+					`${this.getName()}: ${err.message}`);
 			});
 	}
 }
diff --git a/test/lib/specifications/types/Application.js b/test/lib/specifications/types/Application.js
index 94d355ffe..38699c4a3 100644
--- a/test/lib/specifications/types/Application.js
+++ b/test/lib/specifications/types/Application.js
@@ -9,8 +9,6 @@ import Application from "../../../../lib/specifications/types/Application.js";
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const applicationAPath = path.join(__dirname, "..", "..", "..", "fixtures", "application.a");
 const applicationHPath = path.join(__dirname, "..", "..", "..", "fixtures", "application.h");
-const ENOENT_ERROR = new Error();
-ENOENT_ERROR.code = "ENOENT";
 
 test.beforeEach((t) => {
 	t.context.sinon = sinonGlobal.createSandbox();
@@ -491,7 +489,7 @@ test("_getNamespace: Correct fallback to manifest.appdescr_variant if manifest.j
 	const {projectInput, sinon} = t.context;
 	const project = await Specification.create(projectInput);
 	const _getManifestStub = sinon.stub(project, "_getManifest")
-		.onFirstCall().rejects(new Error("", {cause: ENOENT_ERROR}))
+		.onFirstCall().rejects({code: "ENOENT"})
 		.onSecondCall().resolves({id: "my.id"});
 
 	const namespace = await project._getNamespace();
@@ -506,7 +504,7 @@ test("_getNamespace: Correct error message if fallback to manifest.appdescr_vari
 	const {projectInput, sinon} = t.context;
 	const project = await Specification.create(projectInput);
 	const _getManifestStub = sinon.stub(project, "_getManifest")
-		.onFirstCall().rejects(new Error("", {cause: ENOENT_ERROR}))
+		.onFirstCall().rejects({code: "ENOENT"})
 		.onSecondCall().rejects(new Error("EPON: Pony Error"));
 
 	const error = await t.throwsAsync(project._getNamespace());
@@ -522,8 +520,8 @@ test("_getNamespace: Correct error message if fallback to manifest.appdescr_vari
 	const {projectInput, sinon} = t.context;
 	const project = await Specification.create(projectInput);
 	const _getManifestStub = sinon.stub(project, "_getManifest")
-		.onFirstCall().rejects(new Error("No such stable or directory: manifest.json", {cause: ENOENT_ERROR}))
-		.onSecondCall().rejects(new Error("", {cause: ENOENT_ERROR})); // both files are missing
+		.onFirstCall().rejects({message: "No such stable or directory: manifest.json", code: "ENOENT"})
+		.onSecondCall().rejects({code: "ENOENT"}); // both files are missing
 
 	const error = await t.throwsAsync(project._getNamespace());
 	t.deepEqual(error.message,
@@ -586,10 +584,9 @@ test.serial("_getManifest: File does not exist", async (t) => {
 
 	const error = await t.throwsAsync(project._getManifest("/does-not-exist.json"));
 	t.is(error.message,
-		"Failed to read /does-not-exist.json for project application.a: " +
 		"Could not find resource /does-not-exist.json in project application.a",
 		"Rejected with correct error message");
-	t.is(error.cause.code, "ENOENT");
+	t.is(error.code, "ENOENT");
 });
 
 test.serial("_getManifest: result is cached", async (t) => {