✨ feat: more tests, refactored

2026-09-02 14:18:35 +00:00 · 2026-05-24 21:05:21 +07:00
parent e7dd9420e7
commit c1f12c7201
33 changed files with 1403 additions and 334 deletions
@@ -0,0 +1,36 @@
+import { describe, expect, it } from "vitest";
+import { buildBrushDabs, clampBrushOptions, hexToRgb } from "./brush-painter";
+
+describe("brush painter pure helpers", () => {
+  it("parses valid hex colors and falls back to black", () => {
+    expect(hexToRgb("#ff8040")).toEqual({ r: 255, g: 128, b: 64 });
+    expect(hexToRgb("00aaee")).toEqual({ r: 0, g: 170, b: 238 });
+    expect(hexToRgb("nope")).toEqual({ r: 0, g: 0, b: 0 });
+  });
+
+  it("clamps invalid brush options", () => {
+    expect(clampBrushOptions({ color: "#fff", size: 0, opacity: 2, hardness: -1 })).toEqual({
+      color: "#fff",
+      size: 1,
+      opacity: 1,
+      hardness: 0,
+    });
+    expect(clampBrushOptions({ color: "#000", size: Number.NaN, opacity: Number.NaN, hardness: Number.NaN })).toEqual({
+      color: "#000",
+      size: 1,
+      opacity: 1,
+      hardness: 1,
+    });
+  });
+
+  it("interpolates brush dabs including endpoints", () => {
+    expect(buildBrushDabs(0, 0, 4, 0, 4)).toEqual([
+      { x: 0, y: 0 },
+      { x: 1, y: 0 },
+      { x: 2, y: 0 },
+      { x: 3, y: 0 },
+      { x: 4, y: 0 },
+    ]);
+    expect(buildBrushDabs(2, 3, 2, 3, 10)).toEqual([{ x: 2, y: 3 }, { x: 2, y: 3 }]);
+  });
+});