Fixes issue where todos were deleted from a different engine

__tests__/__fixtures__/ember-template-lint-single-error.json

@@ -0,0 +1,21 @@
+{
+  "errorCount": 1,
+  "results": [
+    {
+      "messages": [
+        {
+          "rule": "require-input-label",
+          "severity": 2,
+          "moduleId": "{{path}}/app/templates/components/add-ssh-key.hbs",
+          "message": "Input elements require a valid associated label.",
+          "line": 3,
+          "column": 4,
+          "source": ""
+        }
+      ],
+      "errorCount": 1,
+      "filePath": "{{path}}/app/templates/components/add-ssh-key.hbs",
+      "source": ""
+    }
+  ]
+}

__tests__/__utils__/get-fixture.ts

@@ -0,0 +1,45 @@
+import { join, resolve } from 'path';
+import { ESLint } from 'eslint';
+import { readFileSync, readJsonSync } from 'fs-extra';
+import { TemplateLintResult } from '@ember-template-lint/todo-utils';
+
+const cache: Map<string, string> = new Map();
+
+export function getStringFixture(fileName: string): string {
+  if (cache.has(fileName)) {
+    return cache.get(fileName) || '';
+  }
+
+  const contents = readFileSync(
+    require.resolve(join('../__fixtures__/', fileName)),
+    {
+      encoding: 'utf8',
+    }
+  );
+
+  cache.set(fileName, contents);
+
+  return contents;
+}
+
+export function getObjectFixture<
+  T extends ESLint.LintResult | TemplateLintResult
+>(fileName: string, tmp: string): T[] {
+  const fixture = readJsonSync(
+    resolve(join('./__tests__/__fixtures__/', fileName))
+  );
+
+  return updatePaths(
+    tmp,
+    fixture.hasOwnProperty('results') ? fixture.results : fixture
+  );
+}
+
+function updatePaths<T extends { filePath: string }>(
+  path: string,
+  data: T[]
+): T[] {
+  data.forEach((d) => (d.filePath = d.filePath.replace('{{path}}', path)));
+
+  return data;
+}