chore(*): organise rules into folders by type

src/rules/line/noTabIndentation.spec.ts

@@ -0,0 +1,22 @@
+import { Severity } from '../../types/Severity'
+import { noTabIndentation } from './noTabIndentation'
+
+describe('noTabs', () => {
+  it('should return an empty array when the line is not indented with a tab', () => {
+    const line = "%put 'hello';"
+    expect(noTabIndentation.test(line, 1)).toEqual([])
+  })
+
+  it('should return an array with a single diagnostic when the line is indented with a tab', () => {
+    const line = "\t%put 'hello';"
+    expect(noTabIndentation.test(line, 1)).toEqual([
+      {
+        message: 'Line is indented with a tab',
+        lineNumber: 1,
+        startColumnNumber: 1,
+        endColumnNumber: 1,
+        severity: Severity.Warning
+      }
+    ])
+  })
+})