1 files changed, 46 insertions, 0 deletions
diff --git a/packages/turbo-ignore/__tests__/errors.test.ts b/packages/turbo-ignore/__tests__/errors.test.ts
new file mode 100644
index 0000000..18f26bd
--- /dev/null
+++ b/packages/turbo-ignore/__tests__/errors.test.ts
@@ -0,0 +1,46 @@
+import { shouldWarn, NON_FATAL_ERRORS } from "../src/errors";
+
+describe("shouldWarn()", () => {
+  it("it detects errors when packageManager is missing", async () => {
+    const result = shouldWarn({
+      err: `run failed: We did not detect an in-use package manager for your project. Please set the "packageManager" property in your root package.json (https://nodejs.org/api/packages.html#packagemanager) or run \`npx @turbo/codemod add-package-manager\` in the root of your monorepo.`,
+    });
+    expect(result.code).toBe("NO_PACKAGE_MANAGER");
+    expect(result.level).toBe("warn");
+    expect(result.message).toBe(NON_FATAL_ERRORS.NO_PACKAGE_MANAGER.message);
+  });
+
+  it("it detects errors when yarn lockfile is missing", async () => {
+    const result = shouldWarn({
+      err: `* reading yarn.lock: open /test/../yarn.lock: no such file or directory`,
+    });
+    expect(result.code).toBe("MISSING_LOCKFILE");
+    expect(result.level).toBe("warn");
+    expect(result.message).toBe(NON_FATAL_ERRORS.MISSING_LOCKFILE.message);
+  });
+
+  it("it detects errors when pnpm lockfile is missing", async () => {
+    const result = shouldWarn({
+      err: `* reading pnpm-lock.yaml: open /test/../pnpm-lock.yaml: no such file or directory`,
+    });
+    expect(result.code).toBe("MISSING_LOCKFILE");
+    expect(result.level).toBe("warn");
+    expect(result.message).toBe(NON_FATAL_ERRORS.MISSING_LOCKFILE.message);
+  });
+
+  it("it detects errors when npm lockfile is missing", async () => {
+    const result = shouldWarn({
+      err: `* reading package-lock.json: open /test/../package-lock.json: no such file or directory`,
+    });
+    expect(result.code).toBe("MISSING_LOCKFILE");
+    expect(result.level).toBe("warn");
+    expect(result.message).toBe(NON_FATAL_ERRORS.MISSING_LOCKFILE.message);
+  });
+
+  it("it returns unknown errors", async () => {
+    const result = shouldWarn({ err: `something bad happened` });
+    expect(result.code).toBe("UNKNOWN_ERROR");
+    expect(result.level).toBe("error");
+    expect(result.message).toBe(`something bad happened`);
+  });
+});