test: array index tests to evaluator

yazaldefilimone · Feb 25, 2024 · 9e751c4 · 9e751c4
1 parent 8a4359b
commit 9e751c4
Showing 1 changed file with 82 additions and 0 deletions.
diff --git a/src/evaluator/tests/array-index.test.ts b/src/evaluator/tests/array-index.test.ts
@@ -0,0 +1,82 @@
+import { it, expect, describe } from "vitest";
+import { makeSut } from "./sut";
+import { InternalArray, Integer } from "evaluator/object";
+
+describe("Evaluator", () => {
+  describe("Array", () => {
+    it("should create array and access by index", () => {
+      const tests = [
+        {
+          input: `
+        [1, 2, 3][0];
+        `,
+          expected: 1,
+        },
+        {
+          input: `
+        [1, 2, 3][1];
+        `,
+          expected: 2,
+        },
+        {
+          input: `
+        [1, 2, 3][2];
+        `,
+          expected: 3,
+        },
+        {
+          input: `
+        let i = 0;
+        [1][i];
+        `,
+          expected: 1,
+        },
+        {
+          input: `
+        [1, 2, 3][1 + 1];
+        `,
+          expected: 3,
+        },
+        {
+          input: `
+        let myArray = [1, 2, 3];
+        myArray[2];
+        `,
+          expected: 3,
+        },
+        {
+          input: `
+        let myArray = [1, 2, 3];
+        myArray[0] + myArray[1] + myArray[2];
+        `,
+          expected: 6,
+        },
+        {
+          input: `
+        let myArray = [1, 2, 3];
+        let i = myArray[0];
+        myArray[i];
+        `,
+          expected: 2,
+        },
+        {
+          input: `
+        [1, 2, 3][3];
+        `,
+          expected: null,
+        },
+        {
+          input: `
+        [1, 2, 3][-1];
+        `,
+          expected: null,
+        },
+      ];
+      for (const tt of tests) {
+        const sut = makeSut(tt.input);
+        expect(sut).not.toBeNull();
+        expect(sut?.value).toBe(tt.expected);
+      }
+    });
+  });
+});