feat: move terminal settings, look and ssh tools into ssh-terminal plugin

plugins/ssh-terminal/tests/frontend/look/terminal-global-styles.test.ts

@@ -0,0 +1,89 @@
+import { describe, expect, it, vi } from "vitest";
+import {
+  ensureTerminalFontsLoaded,
+  installTerminalGlobalStyles,
+} from "../../../src/frontend/look/terminal-global-styles";
+
+describe("installTerminalGlobalStyles", () => {
+  it("adds the font faces while the plugin runs and removes them after", () => {
+    const dispose = installTerminalGlobalStyles();
+    const style = document.head.querySelector(
+      "style[data-termix-terminal-styles]",
+    );
+    expect(style?.innerHTML).toContain("Caskaydia Cove Nerd Font Mono");
+    dispose();
+    expect(
+      document.head.querySelector("style[data-termix-terminal-styles]"),
+    ).toBeNull();
+  });
+});
+
+describe("ensureTerminalFontsLoaded", () => {
+  it("requests regular, bold, italic, and bold-italic variants for the given font", () => {
+    const load = vi.fn().mockResolvedValue([]);
+    const originalFonts = document.fonts;
+    Object.defineProperty(document, "fonts", {
+      configurable: true,
+      value: { load },
+    });
+
+    try {
+      ensureTerminalFontsLoaded("Caskaydia Cove Nerd Font Mono");
+
+      expect(load).toHaveBeenCalledWith(
+        '400 16px "Caskaydia Cove Nerd Font Mono"',
+      );
+      expect(load).toHaveBeenCalledWith(
+        '700 16px "Caskaydia Cove Nerd Font Mono"',
+      );
+      expect(load).toHaveBeenCalledWith(
+        'italic 400 16px "Caskaydia Cove Nerd Font Mono"',
+      );
+      expect(load).toHaveBeenCalledWith(
+        'italic 700 16px "Caskaydia Cove Nerd Font Mono"',
+      );
+      expect(load).toHaveBeenCalledTimes(4);
+    } finally {
+      Object.defineProperty(document, "fonts", {
+        configurable: true,
+        value: originalFonts,
+      });
+    }
+  });
+
+  it("does not throw when document.fonts is unavailable", () => {
+    const originalFonts = document.fonts;
+    Object.defineProperty(document, "fonts", {
+      configurable: true,
+      value: undefined,
+    });
+
+    try {
+      expect(() => ensureTerminalFontsLoaded("JetBrains Mono")).not.toThrow();
+    } finally {
+      Object.defineProperty(document, "fonts", {
+        configurable: true,
+        value: originalFonts,
+      });
+    }
+  });
+
+  it("swallows rejected font load promises", async () => {
+    const load = vi.fn().mockRejectedValue(new Error("network error"));
+    const originalFonts = document.fonts;
+    Object.defineProperty(document, "fonts", {
+      configurable: true,
+      value: { load },
+    });
+
+    try {
+      expect(() => ensureTerminalFontsLoaded("Fira Code")).not.toThrow();
+      await new Promise((resolve) => setTimeout(resolve, 0));
+    } finally {
+      Object.defineProperty(document, "fonts", {
+        configurable: true,
+        value: originalFonts,
+      });
+    }
+  });
+});