Add water material and volume tests

2026-04-06 17:34:29 +02:00
parent 7a134d8685
commit a157eefd1f
2 changed files with 240 additions and 0 deletions
--- a/tests/domain/water-material.test.ts
+++ b/tests/domain/water-material.test.ts
@@ -0,0 +1,85 @@
+import { describe, expect, it } from "vitest";
+
+import { collectWaterContactPatches } from "../../src/rendering/water-material";
+
+describe("water material helpers", () => {
+  it("builds contact foam patches for bounds that cross the water surface", () => {
+    const patches = collectWaterContactPatches(
+      {
+        center: {
+          x: 0,
+          y: 0,
+          z: 0
+        },
+        rotationDegrees: {
+          x: 0,
+          y: 0,
+          z: 0
+        },
+        size: {
+          x: 10,
+          y: 2,
+          z: 8
+        }
+      },
+      [
+        {
+          min: {
+            x: -1,
+            y: 0.8,
+            z: -0.75
+          },
+          max: {
+            x: 1,
+            y: 1.35,
+            z: 0.75
+          }
+        }
+      ]
+    );
+
+    expect(patches).toHaveLength(1);
+    expect(patches[0]?.x).toBeCloseTo(0, 5);
+    expect(patches[0]?.z).toBeCloseTo(0, 5);
+    expect(patches[0]?.radius).toBeGreaterThan(0.9);
+    expect(patches[0]?.intensity).toBeGreaterThan(0.5);
+  });
+
+  it("ignores bounds that do not overlap the water surface band", () => {
+    const patches = collectWaterContactPatches(
+      {
+        center: {
+          x: 0,
+          y: 0,
+          z: 0
+        },
+        rotationDegrees: {
+          x: 0,
+          y: 0,
+          z: 0
+        },
+        size: {
+          x: 6,
+          y: 2,
+          z: 6
+        }
+      },
+      [
+        {
+          min: {
+            x: -1,
+            y: -3,
+            z: -1
+          },
+          max: {
+            x: 1,
+            y: -2,
+            z: 1
+          }
+        }
+      ]
+    );
+
+    expect(patches).toHaveLength(0);
+  });
+});