1 files changed, 88 insertions, 0 deletions

diff --git a/packages/eslint-plugin-turbo/__tests__/cwd.test.ts b/packages/eslint-plugin-turbo/__tests__/cwd.test.ts
new file mode 100644
index 0000000..15a2695
--- /dev/null
+++ b/packages/eslint-plugin-turbo/__tests__/cwd.test.ts
@@ -0,0 +1,88 @@
+import path from "path";
+import JSON5 from "json5";
+import { execSync } from "child_process";
+import { Schema } from "@turbo/types";
+import { setupTestFixtures } from "@turbo/test-utils";
+
+describe("eslint settings check", () => {
+  const { useFixture } = setupTestFixtures({
+    directory: path.join(__dirname, "../"),
+  });
+
+  it("does the right thing for peers", () => {
+    const { root: cwd } = useFixture({ fixture: "workspace" });
+    execSync(`npm install`, { cwd });
+
+    const configString = execSync(`eslint --print-config peer.js`, {
+      cwd,
+      encoding: "utf8",
+    });
+    const configJson = JSON5.parse(configString);
+
+    expect(configJson.settings).toEqual({
+      turbo: { envVars: ["CI", "UNORDERED"] },
+    });
+  });
+
+  it("does the right thing for child dirs", () => {
+    const { root } = useFixture({ fixture: "workspace" });
+    execSync(`npm install`, { cwd: root });
+
+    const cwd = path.join(root, "child");
+    const configString = execSync(`eslint --print-config child.js`, {
+      cwd,
+      encoding: "utf8",
+    });
+    const configJson = JSON5.parse(configString);
+
+    expect(configJson.settings).toEqual({
+      turbo: { envVars: ["CI", "UNORDERED"] },
+    });
+  });
+});
+
+describe("eslint cache is busted", () => {
+  const { useFixture } = setupTestFixtures({
+    directory: path.join(__dirname, "../"),
+  });
+
+  it("catches a lint error after changing config", () => {
+    expect.assertions(2);
+
+    // ensure that we populate the cache with a failure.
+    const { root, readJson, write } = useFixture({ fixture: "workspace" });
+    execSync(`npm install`, { cwd: root });
+
+    const cwd = path.join(root, "child");
+    try {
+      execSync(`eslint --format=json child.js`, { cwd, encoding: "utf8" });
+    } catch (error: any) {
+      const outputJson = JSON5.parse(error.stdout);
+      expect(outputJson).toMatchObject([
+        {
+          messages: [
+            {
+              message:
+                "NONEXISTENT is not listed as a dependency in turbo.json",
+            },
+          ],
+        },
+      ]);
+    }
+
+    // change the configuration
+    const turboJson = readJson<Schema>("turbo.json");
+    if (turboJson && "globalEnv" in turboJson) {
+      turboJson.globalEnv = ["CI", "NONEXISTENT"];
+      write("turbo.json", JSON5.stringify(turboJson, null, 2));
+    }
+
+    // test that we invalidated the eslint cache
+    const output = execSync(`eslint --format=json child.js`, {
+      cwd,
+      encoding: "utf8",
+    });
+    const outputJson = JSON5.parse(output);
+    expect(outputJson).toMatchObject([{ errorCount: 0 }]);
+  });
+});