fix: maxLineLength rule should be off when non positive number is provided

src/types/LintConfig.spec.ts

@@ -31,7 +31,7 @@ describe('LintConfig', () => {
     ).toBeUndefined()
   })
 
-  it('should create an instance with the maxLineLength flag off', () => {
+  it('should create an instance with the maxLineLength flag off by setting value to 0', () => {
     const config = new LintConfig({ maxLineLength: 0 })
 
     expect(config).toBeTruthy()
@@ -42,6 +42,17 @@ describe('LintConfig', () => {
     ).toBeUndefined()
   })
 
+  it('should create an instance with the maxLineLength flag off by setting value to a negative number', () => {
+    const config = new LintConfig({ maxLineLength: -1 })
+
+    expect(config).toBeTruthy()
+    expect(config.lineLintRules.length).toBeGreaterThan(0)
+    expect(config.fileLintRules.length).toBeGreaterThan(0)
+    expect(
+      config.lineLintRules.find((rule) => rule.name === 'maxLineLength')
+    ).toBeUndefined()
+  })
+
   it('should create an instance with the hasDoxygenHeader flag off', () => {
     const config = new LintConfig({ hasDoxygenHeader: false })
 

src/types/LintConfig.ts

@@ -68,12 +68,9 @@ export class LintConfig {
       this.lineLintRules.pop()
     }
 
-    if (json?.maxLineLength) {
+    if (json?.maxLineLength > 0) {
       this.lineLintRules.push(maxLineLength)
-
+      this.maxLineLength = json.maxLineLength
-      if (!isNaN(json?.maxLineLength)) {
-        this.maxLineLength = json.maxLineLength
-      }
 
       if (!isNaN(json?.maxHeaderLineLength)) {
         this.maxHeaderLineLength = json.maxHeaderLineLength