fix: do not convert next-line to line for comments (#648)

* fix: do not convert next-line to line for comments

* fix: check the comment directive

Author: KingDarBoja

src/comments/convertFileComments.test.ts

@@ -57,14 +57,16 @@ export const b = true;
 // tslint:enable
 export const c = true;
 
+export const d = true; // tslint:disable-line
+
 /* tslint:disable */
-export const d = true;
+export const e = true;
 
 /* tslint:disable-next-line */
-export const e = true;
+export const f = true;
 
 /* tslint:enable */
-export const f = true;
+export const g = true;
 `);
 
         // Act
@@ -74,31 +76,33 @@ export const f = true;
         expect(dependencies.fileSystem.writeFile).toHaveBeenCalledWith(
             stubFileName,
             `
-// eslint-disable
+/* eslint-disable */
 export const a = true;
 
-// eslint-disable-line
+// eslint-disable-next-line
 export const b = true;
 
-// eslint-enable
+/* eslint-enable */
 export const c = true;
 
-/* eslint-disable */
-export const d = true;
+export const d = true; // eslint-disable-line
 
-/* eslint-disable-line */
+/* eslint-disable */
 export const e = true;
 
-/* eslint-enable */
+/* eslint-disable-next-line */
 export const f = true;
+
+/* eslint-enable */
+export const g = true;
 `,
         );
     });
 
     it("parses rule names when they exist", async () => {
         // Arrange
         const dependencies = createStubDependencies(`
-// tslint:disable:ts-a
+/* tslint:disable:ts-a */
 export const a = true;
 
 // tslint:disable-next-line: ts-a ts-b
@@ -112,10 +116,10 @@ export const b = true;
         expect(dependencies.fileSystem.writeFile).toHaveBeenCalledWith(
             stubFileName,
             `
-// eslint-disable es-a
+/* eslint-disable es-a */
 export const a = true;
 
-// eslint-disable-line es-a, es-b1, es-b2
+// eslint-disable-next-line es-a, es-b1, es-b2
 export const b = true;
 `,
         );
@@ -124,7 +128,7 @@ export const b = true;
     it("re-uses a rule conversion from cache when it was already converted", async () => {
         // Arrange
         const dependencies = createStubDependencies(`
-// tslint:disable:ts-a
+/* tslint:disable:ts-a */
 export const a = true;
 `);
 
@@ -135,7 +139,7 @@ export const a = true;
         expect(dependencies.fileSystem.writeFile).toHaveBeenCalledWith(
             stubFileName,
             `
-// eslint-disable es-cached
+/* eslint-disable es-cached */
 export const a = true;
 `,
         );
@@ -144,7 +148,7 @@ export const a = true;
     it("ignores comment text when there is no matching converter", async () => {
         // Arrange
         const dependencies = createStubDependencies(`
-// tslint:disable:ts-z
+/* tslint:disable:ts-z */
 export const a = true;
 `);
 
@@ -155,7 +159,7 @@ export const a = true;
         expect(dependencies.fileSystem.writeFile).toHaveBeenCalledWith(
             stubFileName,
             `
-// eslint-disable
+/* eslint-disable */
 export const a = true;
 `,
         );
@@ -164,7 +168,7 @@ export const a = true;
     it("ignores comment text when its matching converter results in an error", async () => {
         // Arrange
         const dependencies = createStubDependencies(`
-// tslint:disable:ts-error
+/* tslint:disable:ts-error */
 export const a = true;
 `);
 
@@ -175,7 +179,7 @@ export const a = true;
         expect(dependencies.fileSystem.writeFile).toHaveBeenCalledWith(
             stubFileName,
             `
-// eslint-disable
+/* eslint-disable */
 export const a = true;
 `,
         );

src/comments/replaceFileComments.ts

@@ -29,12 +29,12 @@ export const replaceFileComments = (
     };
 
     for (const comment of [...comments].reverse()) {
-        const directive = comment.directive
-            .replace("tslint:", "eslint-")
-            .replace("next-line", "line");
+        const directive = comment.directive.replace("tslint:", "eslint-");
         const ruleLists = uniqueFromSources(comment.ruleNames.map(getNewRuleLists)).filter(Boolean);
         const [left, right] =
-            comment.commentKind === ts.SyntaxKind.SingleLineCommentTrivia
+            comment.commentKind === ts.SyntaxKind.SingleLineCommentTrivia &&
+            comment.directive !== "tslint:disable" &&
+            comment.directive !== "tslint:enable"
                 ? ["// ", ""]
                 : ["/* ", " */"];