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apps/miniprogram/pages/terminal/touchShiftState.test.ts

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+import { describe, expect, it } from "vitest";
+
+const {
+  TOUCH_SHIFT_MODE_LOCK,
+  TOUCH_SHIFT_MODE_OFF,
+  TOUCH_SHIFT_MODE_ONCE,
+  applyTouchShiftToValue,
+  isTouchShiftActive,
+  normalizeTouchShiftMode,
+  resolveTouchShiftModeOnTap
+} = require("./touchShiftState.js");
+
+describe("touchShiftState", () => {
+  it("shift 单击进入单次大写，双击进入锁定，再点一次退出", () => {
+    expect(resolveTouchShiftModeOnTap(TOUCH_SHIFT_MODE_OFF, 0, 1000, 320)).toBe(TOUCH_SHIFT_MODE_ONCE);
+    expect(resolveTouchShiftModeOnTap(TOUCH_SHIFT_MODE_ONCE, 1000, 1200, 320)).toBe(TOUCH_SHIFT_MODE_LOCK);
+    expect(resolveTouchShiftModeOnTap(TOUCH_SHIFT_MODE_LOCK, 0, 1500, 320)).toBe(TOUCH_SHIFT_MODE_OFF);
+  });
+
+  it("状态归一化和激活判断正确", () => {
+    expect(normalizeTouchShiftMode("once")).toBe(TOUCH_SHIFT_MODE_ONCE);
+    expect(normalizeTouchShiftMode("lock")).toBe(TOUCH_SHIFT_MODE_LOCK);
+    expect(normalizeTouchShiftMode("unknown")).toBe(TOUCH_SHIFT_MODE_OFF);
+    expect(isTouchShiftActive(TOUCH_SHIFT_MODE_OFF)).toBe(false);
+    expect(isTouchShiftActive(TOUCH_SHIFT_MODE_ONCE)).toBe(true);
+    expect(isTouchShiftActive(TOUCH_SHIFT_MODE_LOCK)).toBe(true);
+  });
+
+  it("单次大写只把下一次英文输入转成大写，并在命中字母后消费", () => {
+    expect(applyTouchShiftToValue("", "a", TOUCH_SHIFT_MODE_ONCE)).toEqual({
+      value: "A",
+      consumedOnce: true,
+      touchedLetter: true,
+      transformed: true
+    });
+    expect(applyTouchShiftToValue("A", "A1", TOUCH_SHIFT_MODE_ONCE)).toEqual({
+      value: "A1",
+      consumedOnce: false,
+      touchedLetter: false,
+      transformed: false
+    });
+  });
+
+  it("锁定大写会持续转换后续英文输入", () => {
+    expect(applyTouchShiftToValue("A", "Ab", TOUCH_SHIFT_MODE_LOCK)).toEqual({
+      value: "AB",
+      consumedOnce: false,
+      touchedLetter: true,
+      transformed: true
+    });
+  });
+
+  it("替换中间文本时只转换新增的英文片段", () => {
+    expect(applyTouchShiftToValue("abZ", "acZ", TOUCH_SHIFT_MODE_ONCE)).toEqual({
+      value: "aCZ",
+      consumedOnce: true,
+      touchedLetter: true,
+      transformed: true
+    });
+  });
+});