Add core unit tests (config, highlights, proxy handlers)

src/utils/config/config.test.js

@@ -0,0 +1,59 @@
+import { mkdtempSync, writeFileSync } from "node:fs";
+import { tmpdir } from "node:os";
+import path from "node:path";
+
+import cache from "memory-cache";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+
+describe("utils/config/config", () => {
+  const originalEnv = process.env;
+
+  beforeEach(() => {
+    vi.resetModules();
+    process.env = { ...originalEnv };
+    cache.del("homepageEnvironmentVariables");
+  });
+
+  afterEach(() => {
+    process.env = originalEnv;
+    cache.del("homepageEnvironmentVariables");
+  });
+
+  it("substituteEnvironmentVars replaces HOMEPAGE_VAR_* placeholders", async () => {
+    process.env.HOMEPAGE_VAR_FOO = "bar";
+
+    const mod = await import("./config");
+    expect(mod.substituteEnvironmentVars("x {{HOMEPAGE_VAR_FOO}} y")).toBe("x bar y");
+  });
+
+  it("substituteEnvironmentVars replaces HOMEPAGE_FILE_* placeholders with file contents", async () => {
+    const dir = mkdtempSync(path.join(tmpdir(), "homepage-config-test-"));
+    const secretPath = path.join(dir, "secret.txt");
+    writeFileSync(secretPath, "secret", "utf8");
+
+    process.env.HOMEPAGE_FILE_SECRET = secretPath;
+
+    const mod = await import("./config");
+    expect(mod.substituteEnvironmentVars("token={{HOMEPAGE_FILE_SECRET}}")).toBe("token=secret");
+  });
+
+  it("getSettings reads from HOMEPAGE_CONFIG_DIR and converts layout list to an object", async () => {
+    const dir = mkdtempSync(path.join(tmpdir(), "homepage-settings-test-"));
+    process.env.HOMEPAGE_CONFIG_DIR = dir;
+    process.env.HOMEPAGE_VAR_TITLE = "MyTitle";
+
+    // Create a minimal settings.yaml; checkAndCopyConfig will see it exists and won't copy skeleton.
+    writeFileSync(
+      path.join(dir, "settings.yaml"),
+      ['title: "{{HOMEPAGE_VAR_TITLE}}"', "layout:", "  - GroupA:", "      style: row"].join("\n"),
+      "utf8",
+    );
+
+    vi.resetModules(); // ensure CONF_DIR is computed from updated env
+    const mod = await import("./config");
+
+    const settings = mod.getSettings();
+    expect(settings.title).toBe("MyTitle");
+    expect(settings.layout).toEqual({ GroupA: { style: "row" } });
+  });
+});