chore: import upstream snapshot with attribution

packages/workers-utils/tests/config/validation/isDockerFile.test.ts

@@ -0,0 +1,76 @@
+import { mkdirSync, writeFileSync } from "node:fs";
+import { beforeEach, describe, it } from "vitest";
+import { isDockerfile } from "../../../src/config/validation";
+import { runInTempDir } from "../../../src/test-helpers";
+
+describe("isDockerfile", () => {
+	const dockerfile =
+		'FROM node:18\nWORKDIR /app\nCOPY . .\nRUN npm install\nCMD ["node", "index.js"]';
+
+	runInTempDir();
+
+	beforeEach(() => {
+		mkdirSync("./container-context");
+		writeFileSync("./container-context/Dockerfile", dockerfile);
+	});
+
+	it("should return true if given a valid dockerfile path", async ({
+		expect,
+	}) => {
+		expect(isDockerfile("./container-context/Dockerfile", undefined)).toBe(
+			true
+		);
+	});
+
+	it("should find a dockerfile relative to the wrangler config path", async ({
+		expect,
+	}) => {
+		expect(
+			isDockerfile("./Dockerfile", "./container-context/wrangler.json")
+		).toBe(true);
+	});
+
+	it("should return false if given a valid image registry path", async ({
+		expect,
+	}) => {
+		expect(isDockerfile("docker.io/httpd:1", undefined)).toBe(false);
+	});
+
+	it("should error if given a non existent dockerfile", async ({ expect }) => {
+		expect(() => isDockerfile("./FakeDockerfile", undefined))
+			.toThrowErrorMatchingInlineSnapshot(`
+				[Error: The image "./FakeDockerfile" does not appear to be a valid path to a Dockerfile, or a valid image registry path:
+				If this is an image registry path, it needs to include at least a tag ':' (e.g: docker.io/httpd:1)]
+			`);
+	});
+
+	it("should error if given a directory instead of a dockerfile", async ({
+		expect,
+	}) => {
+		expect(() => isDockerfile("./container-context", undefined))
+			.toThrowErrorMatchingInlineSnapshot(`
+			[Error: ./container-context is a directory, you should specify a path to the Dockerfile]
+		`);
+	});
+
+	it("should error if image registry reference contains the protocol part", async ({
+		expect,
+	}) => {
+		expect(() =>
+			isDockerfile("http://registry.cloudflare.com/image:tag", undefined)
+		).toThrowErrorMatchingInlineSnapshot(`
+			[Error: The image "http://registry.cloudflare.com/image:tag" does not appear to be a valid path to a Dockerfile, or a valid image registry path:
+			Image reference should not include the protocol part (e.g: docker.io/httpd:1, not https://docker.io/httpd:1)]
+		`);
+	});
+
+	it("should error if image registry reference does not contain a tag", async ({
+		expect,
+	}) => {
+		expect(() => isDockerfile("docker.io/httpd", undefined))
+			.toThrowErrorMatchingInlineSnapshot(`
+				[Error: The image "docker.io/httpd" does not appear to be a valid path to a Dockerfile, or a valid image registry path:
+				If this is an image registry path, it needs to include at least a tag ':' (e.g: docker.io/httpd:1)]
+			`);
+	});
+});