More tests

sindresorhus · May 26, 2020 · a1c5b30 · a1c5b30
1 parent f6ea659
commit a1c5b30
Showing 1 changed file with 96 additions and 2 deletions.
diff --git a/test/no-for-loop.js b/test/no-for-loop.js
@@ -499,19 +499,113 @@ ruleTester.run('no-for-loop', rule, {
 			}
 		`),
 
+		// Avoid naming collision when using default element name (different scope).
+		testCase(outdent`
+			function element(element_) {
+				for (let i = 0; i < arr.length; i += 1) {
+					console.log(arr[i], element);
+				}
+			}
+		`, outdent`
+			function element(element_) {
+				for (const element__ of arr) {
+					console.log(element__, element);
+				}
+			}
+		`),
+		testCase(outdent`
+			for (let i = 0; i < arr.length; i += 1) {
+				function element__(element) {
+					console.log(arr[i], element);
+				}
+			}
+		`, outdent`
+			for (const element_ of arr) {
+				function element__(element) {
+					console.log(element_, element);
+				}
+			}
+		`),
+		testCase(outdent`
+			for (let i = 0; i < arr.length; i += 1) {
+				function element_(element) {
+					console.log(arr[i], element);
+				}
+			}
+		`, outdent`
+			for (const element__ of arr) {
+				function element_(element) {
+					console.log(element__, element);
+				}
+			}
+		`),
+		testCase(outdent`
+			for (let i = 0; i < arr.length; i += 1) {
+				function element() {
+					console.log(arr[i], element);
+				}
+			}
+		`, outdent`
+			for (const element_ of arr) {
+				function element() {
+					console.log(element_, element);
+				}
+			}
+		`),
+		testCase(outdent`
+			for (let i = 0; i < arr.length; i += 1) {
+				console.log(arr[i], element);
+			}
+		`, outdent`
+			for (const element_ of arr) {
+				console.log(element_, element);
+			}
+		`),
+		testCase(outdent`
+			for (let element = 0; element < arr.length; element += 1) {
+				console.log(element, arr[element]);
+			}
+		`, outdent`
+			for (const [element, element_] of arr.entries()) {
+				console.log(element, element_);
+			}
+		`),
+		testCase(outdent`
+			for (let element = 0; element < arr.length; element += 1) {
+				console.log(arr[element]);
+			}
+		`, outdent`
+			for (const element_ of arr) {
+				console.log(element_);
+			}
+		`),
+		testCase(outdent`
+			for (const element of arr) {
+				for (let j = 0; j < arr2.length; j += 1) {
+					console.log(element, arr2[j]);
+				}
+			}
+		`, outdent`
+			for (const element of arr) {
+				for (const element_ of arr2) {
+					console.log(element, element_);
+				}
+			}
+		`),
+
 		// Avoid naming collision when using default element name (multiple collisions).
 		testCase(outdent`
 			for (let i = 0; i < arr.length; i += 1) {
-				console.log(arr[i]);
 				const element = foo();
+				console.log(arr[i]);
 				const element_ = foo();
 				console.log(element);
 				console.log(element_);
 			}
 		`, outdent`
 			for (const element__ of arr) {
-				console.log(element__);
 				const element = foo();
+				console.log(element__);
 				const element_ = foo();
 				console.log(element);
 				console.log(element_);