chore: add tests for tsc error parsing

src/index.ts

@@ -2,7 +2,7 @@ import consola from 'consola'
 import type { TscError, TypestepConfig } from './types.js'
 import { tscDiagnosticToTscError, uniqArray } from './utils.js'
 
-function parseTsError(tscError: string): TscError {
+export function parseTsError(tscError: string): TscError {
   const regex = /([^()\n]+)\((\d+),(\d+)\):\s+error\s+(TS\d+):\s+(.*)/
   const [_, file, line, column, tsCode, error] = regex.exec(tscError) || []
 

tests/parse-ts-error.test.ts

@@ -0,0 +1,74 @@
+import { expect, test } from 'vitest'
+import { parseTsError } from '../src/index.js'
+
+test('valid tsc error', async () => {
+  let tscError = parseTsError('src/App.vue(153,11): error TS2322: Type \'Timeout\' is not assignable to type \'null\'.')
+
+  expect(tscError).toStrictEqual({
+    path: 'src/App.vue',
+    cursor: {
+      line: 153,
+      column: 11,
+    },
+    error: 'Type \'Timeout\' is not assignable to type \'null\'.',
+    tsCode: 'TS2322',
+  })
+
+  tscError = parseTsError('src/App.vue(203,17): error TS7006: Parameter \'e\' implicitly has an \'any\' type.')
+
+  expect(tscError).toStrictEqual({
+    path: 'src/App.vue',
+    cursor: {
+      line: 203,
+      column: 17,
+    },
+    error: 'Parameter \'e\' implicitly has an \'any\' type.',
+    tsCode: 'TS7006',
+  })
+
+  tscError = parseTsError('src/components/__tests__/SortingButton.spec.ts(25,24): error TS2571: Object is of type \'unknown\'.')
+
+  expect(tscError).toStrictEqual({
+    path: 'src/components/__tests__/SortingButton.spec.ts',
+    cursor: {
+      line: 25,
+      column: 24,
+    },
+    error: 'Object is of type \'unknown\'.',
+    tsCode: 'TS2571',
+  })
+
+  tscError = parseTsError('src/App.vue(283,7): error TS2554: Expected 7 arguments, but got 4.')
+
+  expect(tscError).toStrictEqual({
+    path: 'src/App.vue',
+    cursor: {
+      line: 283,
+      column: 7,
+    },
+    error: 'Expected 7 arguments, but got 4.',
+    tsCode: 'TS2554',
+  })
+})
+
+test('invalid tsc error', async () => {
+  expect(
+    () => parseTsError('  Property \'filter\' does not exist on type \'string\'.'),
+  ).toThrowError('Invalid error format')
+
+  expect(
+    () => parseTsError('    Argument of type \'number\' is not assignable to parameter of type \'Blob\'.'),
+  ).toThrowError('Invalid error format')
+
+  expect(
+    () => parseTsError('    Type \'{ id: number }\' is missing the following properties from type \'MyParam\': name, description, and 55 more.'),
+  ).toThrowError('Invalid error format')
+
+  expect(
+    () => parseTsError('        Type \'{ file: string; name: string; extension: string; }\' is not assignable to type \'never\'.'),
+  ).toThrowError('Invalid error format')
+
+  expect(
+    () => parseTsError('  Property \'context\' does not exist on type \'{ userId: string | string[]; translate: string | string[]; }\'.'),
+  ).toThrowError('Invalid error format')
+})