test(prefer-svelte-reactivity): added tests for encapsulated local variables

Author: marekdedic

packages/eslint-plugin-svelte/tests/fixtures/rules/prefer-svelte-reactivity/invalid/encapsulated-local-variables/_config.json

@@ -0,0 +1,3 @@
+{
+	"options": [{ "ignoreEncapsulatedLocalVariables": false }]
+}

packages/eslint-plugin-svelte/tests/fixtures/rules/prefer-svelte-reactivity/invalid/encapsulated-local-variables/_requirements.json

@@ -0,0 +1,3 @@
+{
+	"svelte": ">=5.0.0"
+}

packages/eslint-plugin-svelte/tests/fixtures/rules/prefer-svelte-reactivity/invalid/encapsulated-local-variables/encapsulated-arrow-function01-errors.yaml

@@ -0,0 +1,4 @@
+- message: Found a mutable instance of the built-in Set class. Use SvelteSet instead.
+  line: 3
+  column: 20
+  suggestions: null

packages/eslint-plugin-svelte/tests/fixtures/rules/prefer-svelte-reactivity/invalid/encapsulated-local-variables/encapsulated-arrow-function01-input.svelte

@@ -0,0 +1,9 @@
+<script>
+	const fn = () => {
+		const variable = new Set([1, 2, 1, 3, 3]);
+		variable.add(42);
+		return 42;
+	}
+</script>
+
+{fn()}

packages/eslint-plugin-svelte/tests/fixtures/rules/prefer-svelte-reactivity/invalid/encapsulated-local-variables/encapsulated-class01-errors.yaml

@@ -0,0 +1,4 @@
+- message: Found a mutable instance of the built-in Set class. Use SvelteSet instead.
+  line: 3
+  column: 15
+  suggestions: null

packages/eslint-plugin-svelte/tests/fixtures/rules/prefer-svelte-reactivity/invalid/encapsulated-local-variables/encapsulated-class01-input.svelte

@@ -0,0 +1,14 @@
+<script>
+	class A {
+		#variable = new Set([1, 2, 1, 3, 3]);
+
+		fn() {
+			this.#variable.add(42);
+			return 42;
+		}
+	}
+
+	const a = new A();
+</script>
+
+{a.fn()}

packages/eslint-plugin-svelte/tests/fixtures/rules/prefer-svelte-reactivity/invalid/encapsulated-local-variables/encapsulated-class02-errors.yaml

@@ -0,0 +1,4 @@
+- message: Found a mutable instance of the built-in Set class. Use SvelteSet instead.
+  line: 3
+  column: 15
+  suggestions: null

packages/eslint-plugin-svelte/tests/fixtures/rules/prefer-svelte-reactivity/invalid/encapsulated-local-variables/encapsulated-class02-input.svelte

@@ -0,0 +1,19 @@
+<script>
+	class A {
+		#variable = new Set([1, 2, 1, 3, 3]);
+
+		#fn() {
+			this.#variable.add(42);
+			return this.#variable;
+		}
+
+		fn2() {
+			this.#fn();
+			return 42;
+		}
+	}
+
+	const a = new A();
+</script>
+
+{a.fn2()}

packages/eslint-plugin-svelte/tests/fixtures/rules/prefer-svelte-reactivity/invalid/encapsulated-local-variables/encapsulated-class03-errors.yaml

@@ -0,0 +1,4 @@
+- message: Found a mutable instance of the built-in Set class. Use SvelteSet instead.
+  line: 3
+  column: 22
+  suggestions: null

packages/eslint-plugin-svelte/tests/fixtures/rules/prefer-svelte-reactivity/invalid/encapsulated-local-variables/encapsulated-class03-input.svelte

@@ -0,0 +1,14 @@
+<script lang="ts">
+	class A {
+		private variable = new Set([1, 2, 1, 3, 3]);
+
+		public fn() {
+			this.variable.add(42);
+			return 42;
+		}
+	}
+
+	const a = new A();
+</script>
+
+{a.fn()}