Add combined model selector and refactor working indicator

2026-03-19 08:55:40 +07:00
parent 22c27dd583
commit f0ba64f23b
14 changed files with 690 additions and 127 deletions
@@ -0,0 +1,33 @@
+import { describe, expect, it } from "vitest";
+import {
+  getWorkingIndicatorDotStrength,
+  WORKING_INDICATOR_OFFSETS,
+} from "./working-indicator";
+
+describe("getWorkingIndicatorDotStrength", () => {
+  it("returns a stable triangular pulse over one cycle", () => {
+    expect(getWorkingIndicatorDotStrength(0, 0)).toBe(0);
+    expect(getWorkingIndicatorDotStrength(0.125, 0)).toBe(0.25);
+    expect(getWorkingIndicatorDotStrength(0.25, 0)).toBe(0.5);
+    expect(getWorkingIndicatorDotStrength(0.5, 0)).toBe(1);
+    expect(getWorkingIndicatorDotStrength(0.75, 0)).toBe(0.5);
+    expect(getWorkingIndicatorDotStrength(1, 0)).toBe(0);
+  });
+
+  it("keeps the dots phase-shifted instead of identical", () => {
+    const strengths = WORKING_INDICATOR_OFFSETS.map((offset) =>
+      getWorkingIndicatorDotStrength(0, offset)
+    );
+
+    expect(strengths).toEqual([0, 0.26666666666666666, 0.5333333333333333]);
+  });
+
+  it("wraps progress cleanly across loop boundaries", () => {
+    expect(getWorkingIndicatorDotStrength(1.1, 0)).toBeCloseTo(
+      getWorkingIndicatorDotStrength(0.1, 0)
+    );
+    expect(getWorkingIndicatorDotStrength(-0.1, 0)).toBeCloseTo(
+      getWorkingIndicatorDotStrength(0.9, 0)
+    );
+  });
+});