初始化

uni_modules/UniDevTools/node_modules/@jimp/plugin-crop/test/crop.test.js

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+import { Jimp, mkJGD } from '@jimp/test-utils';
+import configure from '@jimp/custom';
+
+import crop from '../src';
+
+const jimp = configure({ plugins: [crop] }, Jimp);
+
+describe('crop', () => {
+  // 6x5 size
+  const testImage = mkJGD('  ◆◆  ', ' ◆▦▦◆ ', '◆▦▦▦▦◆', ' ◆▦▦◆ ', '  ◆◆  ');
+
+  it('full width from top', async () => {
+    const imgSrc = await jimp.read(testImage);
+
+    imgSrc
+      .crop(0, 0, 6, 2)
+      .getJGDSync()
+      .should.be.sameJGD(mkJGD('  ◆◆  ', ' ◆▦▦◆ '));
+  });
+
+  it('full width from bottom', async () => {
+    const imgSrc = await jimp.read(testImage);
+
+    imgSrc
+      .crop(0, 3, 6, 2)
+      .getJGDSync()
+      .should.be.sameJGD(mkJGD(' ◆▦▦◆ ', '  ◆◆  '));
+  });
+
+  it('full width from middle', async () => {
+    const imgSrc = await jimp.read(testImage);
+
+    imgSrc
+      .crop(0, 2, 6, 2)
+      .getJGDSync()
+      .should.be.sameJGD(mkJGD('◆▦▦▦▦◆', ' ◆▦▦◆ '));
+  });
+
+  it('full height from left', async () => {
+    const imgSrc = await jimp.read(testImage);
+
+    imgSrc
+      .crop(0, 0, 2, 5)
+      .getJGDSync()
+      .should.be.sameJGD(mkJGD('  ', ' ◆', '◆▦', ' ◆', '  '));
+  });
+
+  it('full height from right', async () => {
+    const imgSrc = await jimp.read(testImage);
+
+    imgSrc
+      .crop(4, 0, 2, 5)
+      .getJGDSync()
+      .should.be.sameJGD(mkJGD('  ', '◆ ', '▦◆', '◆ ', '  '));
+  });
+
+  it('full height from middle', async () => {
+    const imgSrc = await jimp.read(testImage);
+
+    imgSrc
+      .crop(2, 0, 2, 5)
+      .getJGDSync()
+      .should.be.sameJGD(mkJGD('◆◆', '▦▦', '▦▦', '▦▦', '◆◆'));
+  });
+});