[Task] Add unit test cases for configParser utils #195 (#208)

Co-authored-by: Andrey Kishtov <andreyk@jfrog.com>

__tests__/utils/configParser.test.ts

@@ -0,0 +1,132 @@
+import {
+  parseConfig,
+  getDefaultSettings,
+  getDefaultStyles,
+} from "../../src/utils/configParser";
+import { processAndFetchThemeConfig } from "../../src/services/ThemeService";
+import { Settings } from "../../src/types/Settings";
+import { Styles } from "../../src/types/Styles";
+import { Theme } from "../../src/types/Theme";
+import { DefaultSettings } from "../../src/constants/internal/DefaultSettings";
+import { DefaultStyles } from "../../src/constants/internal/DefaultStyles";
+
+jest.mock("../../src/services/ThemeService", () => ({
+  processAndFetchThemeConfig: jest.fn(),
+}));
+
+const mockedProcessAndFetchThemeConfig =
+  processAndFetchThemeConfig as jest.MockedFunction<
+    typeof processAndFetchThemeConfig
+  >;
+
+describe("parseConfig", () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it("should return default settings correctly", () => {
+    const defaultSettings = getDefaultSettings();
+    expect(defaultSettings).toEqual(DefaultSettings);
+  });
+
+  it("should return default styles correctly", () => {
+    const defaultStyles = getDefaultStyles();
+    expect(defaultStyles).toEqual(DefaultStyles);
+  });
+
+  it("should parse the config correctly without themes or provided settings/styles", async () => {
+    const botId = "bot123";
+    const providedSettings = undefined;
+    const providedStyles = undefined;
+    const themes = undefined;
+
+    const result = await parseConfig(
+      botId,
+      providedSettings,
+      providedStyles,
+      themes
+    );
+
+    expect(result.settings).toEqual(getDefaultSettings());
+    expect(result.inlineStyles).toEqual(getDefaultStyles());
+    expect(result.cssStylesText).toBe("");
+  });
+
+  it("should parse the config correctly with a theme array", async () => {
+    const botId = "bot123";
+    const providedSettings = undefined;
+    const providedStyles = undefined;
+    const themes: Theme[] = [{ id: "theme1" }, { id: "theme2" }];
+
+    mockedProcessAndFetchThemeConfig.mockResolvedValueOnce({
+      settings: { chatInput: { botDelay: 1000 } },
+      inlineStyles: { bodyStyle: { backgroundColor: "#fff" } },
+      cssStylesText: "theme1-css",
+    });
+
+    mockedProcessAndFetchThemeConfig.mockResolvedValueOnce({
+      settings: { chatInput: { botDelay: 2000 } },
+      inlineStyles: { bodyStyle: { color: "#000" } },
+      cssStylesText: "theme2-css",
+    });
+
+    const result = await parseConfig(
+      botId,
+      providedSettings,
+      providedStyles,
+      themes
+    );
+
+    expect(mockedProcessAndFetchThemeConfig).toHaveBeenCalledTimes(2);
+    expect(result.settings.chatInput?.botDelay).toBe(2000);
+    expect(result.inlineStyles.bodyStyle?.color).toBe("#000");
+    expect(result.cssStylesText).toBe("theme1-csstheme2-css");
+  });
+
+  it("should parse the config correctly with provided settings and styles", async () => {
+    const botId = "bot123";
+    const providedSettings: Settings = {
+      chatInput: { botDelay: 300 },
+    };
+    const providedStyles: Styles = {
+      bodyStyle: { color: "blue" },
+    };
+    const themes = undefined;
+
+    const result = await parseConfig(
+      botId,
+      providedSettings,
+      providedStyles,
+      themes
+    );
+
+    expect(result.settings.chatInput?.botDelay).toBe(500);
+    expect(result.inlineStyles.bodyStyle?.color).toBe("blue");
+    expect(result.cssStylesText).toBe("");
+  });
+
+  it("should parse the config correctly with a single theme", async () => {
+    const botId = "bot123";
+    const providedSettings = undefined;
+    const providedStyles = undefined;
+    const theme: Theme = { id: "theme1" };
+
+    mockedProcessAndFetchThemeConfig.mockResolvedValue({
+      settings: { chatInput: { botDelay: 1500 } },
+      inlineStyles: { bodyStyle: { backgroundColor: "#123456" } },
+      cssStylesText: "theme1-css",
+    });
+
+    const result = await parseConfig(
+      botId,
+      providedSettings,
+      providedStyles,
+      theme
+    );
+
+    expect(mockedProcessAndFetchThemeConfig).toHaveBeenCalledTimes(1);
+    expect(result.settings.chatInput?.botDelay).toBe(1500);
+    expect(result.inlineStyles.bodyStyle?.backgroundColor).toBe("#123456");
+    expect(result.cssStylesText).toBe("theme1-css");
+  });
+});