Import source code

Author: doniyor2109

.babelrc

@@ -0,0 +1,4 @@
+{
+    "presets": ["@babel/preset-env"],
+    "plugins": ["@babel/plugin-proposal-export-default-from"]
+}

.gitignore

@@ -59,3 +59,7 @@ typings/
 
 # next.js build output
 .next
+
+.idea
+
+dist

.npmignore

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+lib

lib/index.js

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+import * as matchers from './matchers';
+
+const jestExpect = global.expect;
+
+if (jestExpect) {
+    jestExpect.extend(matchers);
+} else {
+    console.error('jest-generator: Could not find jest. Please install jest library');
+}

lib/matchers/index.js

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+export toMatchYields from './toMatchYields';

lib/matchers/toMatchYields.js

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+function toMatchYields(iterator, yieldValues) {
+    let yieldIndex = 0;
+    let pass = true;
+    let received;
+    let expected;
+    let iteratorValue;
+
+    do {
+        const [expectedYieldValue] = yieldValues[yieldIndex] || [];
+        const [, argumentForYield] = yieldValues[yieldIndex - 1] || [];
+
+        if (argumentForYield instanceof Error) {
+            iteratorValue = iterator.throw(argumentForYield);
+        } else {
+            iteratorValue = iterator.next(argumentForYield);
+        }
+
+        const yieldedValue = iteratorValue.value;
+        const isYieldValueSameAsExpected = this.equals(yieldedValue, expectedYieldValue);
+
+        if (!isYieldValueSameAsExpected) {
+            expected = expectedYieldValue;
+            received = yieldedValue;
+            pass = false;
+            break;
+        }
+
+        yieldIndex++;
+    } while (iteratorValue.done === false);
+
+    return {
+        pass,
+        actual: received,
+        message: () => `
+        Expected generator to match with: \n
+          ${this.utils.printExpected(expected)}
+        Received:\n
+          ${this.utils.printReceived(received)} 
+      `
+    };
+}
+
+export default toMatchYields;

package.json

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+{
+  "name": "jest-generator",
+  "version": "1.0.0",
+  "main": "dist/index.js",
+  "repository": "[email protected]:doniyor2109/jest-generator.git",
+  "scripts": {
+    "build": "babel lib -d dist"
+  },
+  "devDependencies": {
+    "@babel/cli": "^7.1.5",
+    "@babel/core": "^7.1.6",
+    "@babel/plugin-proposal-export-default-from": "^7.0.0",
+    "@babel/preset-env": "^7.1.6"
+  },
+  "keywords": ["jest", "jest-matchers", "generator", "testing generator", "test util"],
+  "license": "MIT"
+}