chore(blp): expand test suite

src/spec/blp/Blp.spec.ts

@@ -1,32 +1,131 @@
-import Blp, { BLP_COLOR_FORMAT, BLP_PIXEL_FORMAT } from '../../lib/blp/Blp.js';
-import { expect, describe, test } from 'vitest';
+import Blp, { BLP_COLOR_FORMAT, BLP_IMAGE_FORMAT } from '../../lib/blp/Blp.js';
+import { describe, expect, test } from 'vitest';
 
 describe('Blp', () => {
   describe('load', () => {
-    test('should load blp from valid file', () => {
-      const blp = new Blp();
-      blp.load('./fixture/dxt5.blp');
-
-      expect(blp.magic).toBe('BLP2');
-      expect(blp.formatVersion).toBe(1);
-      expect(blp.colorFormat).toBe(BLP_COLOR_FORMAT.COLOR_DXT);
-      expect(blp.alphaSize).toBe(8);
-      expect(blp.hasMips).toBe(1);
-      expect(blp.width).toBe(512);
-      expect(blp.height).toBe(512);
+    describe('dxt1a', () => {
+      test('should load blp from valid file', () => {
+        const blp = new Blp();
+        blp.load('./fixture/dxt1a.blp');
+
+        expect(blp.magic).toBe('BLP2');
+        expect(blp.formatVersion).toBe(1);
+        expect(blp.colorFormat).toBe(BLP_COLOR_FORMAT.COLOR_DXT);
+        expect(blp.alphaSize).toBe(1);
+        expect(blp.hasMips).toBe(1);
+        expect(blp.width).toBe(16);
+        expect(blp.height).toBe(16);
+      });
+    });
+
+    describe('dxt3', () => {
+      test('should load blp from valid file', () => {
+        const blp = new Blp();
+        blp.load('./fixture/dxt3.blp');
+
+        expect(blp.magic).toBe('BLP2');
+        expect(blp.formatVersion).toBe(1);
+        expect(blp.colorFormat).toBe(BLP_COLOR_FORMAT.COLOR_DXT);
+        expect(blp.alphaSize).toBe(8);
+        expect(blp.hasMips).toBe(1);
+        expect(blp.width).toBe(256);
+        expect(blp.height).toBe(256);
+      });
+    });
+
+    describe('dxt5', () => {
+      test('should load blp from valid file', () => {
+        const blp = new Blp();
+        blp.load('./fixture/dxt5.blp');
+
+        expect(blp.magic).toBe('BLP2');
+        expect(blp.formatVersion).toBe(1);
+        expect(blp.colorFormat).toBe(BLP_COLOR_FORMAT.COLOR_DXT);
+        expect(blp.alphaSize).toBe(8);
+        expect(blp.hasMips).toBe(1);
+        expect(blp.width).toBe(512);
+        expect(blp.height).toBe(512);
+      });
     });
   });
 
   describe('getImage', () => {
-    test('should return image level 0', () => {
-      const blp = new Blp();
-      blp.load('./fixture/dxt5.blp');
+    describe('dxt1a', () => {
+      test('should return image for default level and format', () => {
+        const blp = new Blp();
+        blp.load('./fixture/dxt1a.blp');
+
+        const image = blp.getImage();
+
+        expect(image.width).toBe(16);
+        expect(image.height).toBe(16);
+        expect(image.data.byteLength).toBe((16 * 16) / 2);
+        expect(image.format).toBe(BLP_IMAGE_FORMAT.IMAGE_DXT1);
+      });
+
+      test('should return image for level 1 and RGBA8888 format', () => {
+        const blp = new Blp();
+        blp.load('./fixture/dxt1a.blp');
+
+        const image = blp.getImage(1, BLP_IMAGE_FORMAT.IMAGE_RGBA8888);
+
+        expect(image.width).toBe(8);
+        expect(image.height).toBe(8);
+        expect(image.data.byteLength).toBe(8 * 8 * 4);
+        expect(image.format).toBe(BLP_IMAGE_FORMAT.IMAGE_RGBA8888);
+      });
+    });
+
+    describe('dxt3', () => {
+      test('should return image for default level and format', () => {
+        const blp = new Blp();
+        blp.load('./fixture/dxt3.blp');
+
+        const image = blp.getImage();
+
+        expect(image.width).toBe(256);
+        expect(image.height).toBe(256);
+        expect(image.data.byteLength).toBe(256 * 256 * 1);
+        expect(image.format).toBe(BLP_IMAGE_FORMAT.IMAGE_DXT3);
+      });
+
+      test('should return image for level 1 and RGBA8888 format', () => {
+        const blp = new Blp();
+        blp.load('./fixture/dxt3.blp');
+
+        const image = blp.getImage(1, BLP_IMAGE_FORMAT.IMAGE_RGBA8888);
+
+        expect(image.width).toBe(128);
+        expect(image.height).toBe(128);
+        expect(image.data.byteLength).toBe(128 * 128 * 4);
+        expect(image.format).toBe(BLP_IMAGE_FORMAT.IMAGE_RGBA8888);
+      });
+    });
+
+    describe('dxt5', () => {
+      test('should return image for default level and format', () => {
+        const blp = new Blp();
+        blp.load('./fixture/dxt5.blp');
+
+        const image = blp.getImage();
+
+        expect(image.width).toBe(512);
+        expect(image.height).toBe(512);
+        expect(image.data.byteLength).toBe(512 * 512 * 1);
+        expect(image.format).toBe(BLP_IMAGE_FORMAT.IMAGE_DXT5);
+      });
+
+      test('should return image for level 1 and RGBA8888 format', () => {
+        const blp = new Blp();
+        blp.load('./fixture/dxt5.blp');
 
-      const image = blp.getImage(0);
+        const image = blp.getImage(1, BLP_IMAGE_FORMAT.IMAGE_RGBA8888);
 
-      expect(image.data.byteLength).toBe(262144);
-      expect(image.width).toBe(512);
-      expect(image.height).toBe(512);
+        expect(image.width).toBe(256);
+        expect(image.height).toBe(256);
+        expect(image.data.byteLength).toBe(256 * 256 * 4);
+        expect(image.format).toBe(BLP_IMAGE_FORMAT.IMAGE_RGBA8888);
+      });
     });
   });
 });