test: save tests code cuz idk

Author: notwindstone

src/lib/main/get-config-file.test.ts

@@ -0,0 +1,167 @@
+import { beforeEach, expect, test, vi } from "vitest";
+import type { ConfigType } from "@/types/config/config.schema.ts";
+
+const defaultConfig: ConfigType = {
+  "__do_not_touch_VERSION": 1,
+  "customization"         : {
+    "theme"     : "dark",
+    "accent"    : "rose",
+    "background": "none",
+  },
+  "locale"               : "system",
+  "minecraftWindowHeight": 480,
+  "minecraftWindowWidth" : 854,
+};
+
+vi.mock("@/lib/handlers/log.ts", async () => {
+  return await vi.importActual("@/__mocks__/log.cjs");
+});
+vi.mock("@/lib/main/get-default-config.ts", async () => {
+  return {
+    "getDefaultConfig": async (): Promise<ConfigType> => defaultConfig,
+  };
+});
+vi.mock("@/lib/main/initialize-config-file.ts", async () => {
+  return {
+    "initializeConfigFile": async (): Promise<void> => {},
+  };
+});
+
+const tests: Array<{
+  "arguments": {
+    "exists"       : boolean;
+    "fetchedConfig": string;
+  };
+  "output": unknown;
+}> = [
+  {
+    "arguments": {
+      "exists"       : true,
+      "fetchedConfig": JSON.stringify({}),
+    },
+    "output": defaultConfig,
+  },
+  {
+    "arguments": {
+      "exists"       : true,
+      "fetchedConfig": JSON.stringify({
+        ...defaultConfig,
+        "TUYU": "is awesome",
+      }),
+    },
+    "output": defaultConfig,
+  },
+  {
+    "arguments": {
+      "exists"       : true,
+      "fetchedConfig": JSON.stringify({
+        ...defaultConfig,
+        "__do_not_touch_VERSION": "-1",
+        "customization"         : {
+          "theme": "blue",
+        },
+      }),
+    },
+    "output": defaultConfig,
+  },
+  {
+    "arguments": {
+      "exists"       : true,
+      "fetchedConfig": JSON.stringify({
+        ...defaultConfig,
+        "__do_not_touch_VERSION": -1,
+        "customization"         : {
+          "theme"     : "light",
+          "accent"    : "red",
+          "background": "some-url",
+          "nyaa"      : "si",
+        },
+        "locale"                : 2,
+        "minecraftWindowHeight" : "480",
+        "minecraftWindowHeight ": 500,
+      }),
+    },
+    "output": defaultConfig,
+  },
+  {
+    "arguments": {
+      "exists"       : true,
+      "fetchedConfig": JSON.stringify({
+        ...defaultConfig,
+        "__do_not_touch_VERSION": -1,
+        "customization"         : {
+          "theme"     : "light",
+          "accent"    : "red",
+          "background": "some-url",
+        },
+      }),
+    },
+    "output": {
+      "__do_not_touch_VERSION": -1,
+      "customization"         : {
+        "theme"     : "light",
+        "accent"    : "red",
+        "background": "some-url",
+      },
+      "locale"               : "system",
+      "minecraftWindowHeight": 480,
+      "minecraftWindowWidth" : 854,
+    },
+  },
+  {
+    "arguments": {
+      "exists"       : true,
+      "fetchedConfig": "0",
+    },
+    "output": defaultConfig,
+  },
+  {
+    "arguments": {
+      "exists"       : false,
+      // If 'exists' were 'true', it would throw an error (expected behaviour)
+      "fetchedConfig": "",
+    },
+    "output": defaultConfig,
+  },
+];
+let index = 0;
+let currentTestBeforeEach = tests[index];
+
+beforeEach(() => {
+  vi.doMock("@tauri-apps/plugin-fs", async () => {
+    return {
+      "BaseDirectory": {
+        "AppData": 14,
+      },
+      "exists"      : async (): Promise<boolean> => currentTestBeforeEach.arguments.exists,
+      "readTextFile": async (): Promise<string> => {
+        console.log(index, tests[index], currentTestBeforeEach);
+
+        return currentTestBeforeEach.arguments.fetchedConfig;
+      },
+    };
+  });
+
+  return () => {
+    index++;
+    currentTestBeforeEach = tests[index];
+  };
+});
+
+for (const currentTest of tests) {
+  const testName = `Get Config File: ${JSON.stringify(currentTest.arguments)}`;
+
+  test(testName, async () => {
+    /*
+     * Original import (top-level) will not be mocked, because 'vi.doMock' is evaluated
+     * after all imports and 'vi.mock' can't be called dynamically
+     */
+    const { getConfigFile } = await import("./get-config-file.ts");
+
+    expect(
+      JSON.stringify(await getConfigFile()),
+    ).toBe(
+      JSON.stringify(currentTest.output),
+    );
+  });
+}