Add unit tests for brainfuck and deadfish

engines/deadfish/tests/288.txt

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+diissisdo

engines/deadfish/tests/helloworld.txt

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+iisiiiisiiiiiiiioiiiiiiiiiiiiiiiiiiiiiiiiiiiiioiiiiiiiooiiio
+dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddo
+dddddddddddddddddddddsddoddddddddoiiioddddddoddddddddo

engines/deadfish/tests/index.test.ts

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+import { readTestProgram, executeProgram } from "../../test-utils";
+// import { BFRS, serializeTapeMap } from "../constants";
+import Engine from "../runtime";
+
+/**
+ * All test programs are picked up from https://esolangs.org/wiki/Brainfuck.
+ * - Cell cleanup code at end of cell size program is not included.
+ */
+
+/**
+ * Check if actual cell array matches expected cell array.
+ * Expected cell array must exclude trailing zeros.
+ * @param cellsMap Map of cell index to value, as provided in execution result.
+ * @param expected Array of expected cell values, without trailing zeros.
+ */
+// const expectCellsToBe = (cellsMap: BFRS["tape"], expected: number[]) => {
+//   const cells = serializeTapeMap(cellsMap);
+//   expect(cells.length).toBeGreaterThanOrEqual(expected.length);
+//   cells.forEach((value, idx) => {
+//     if (idx < expected.length) expect(value).toBe(expected[idx]);
+//     else expect(value).toBe(0);
+//   });
+// };
+
+describe("Test programs", () => {
+  // Standard hello-world program
+  test("hello world", async () => {
+    const code = readTestProgram(__dirname, "helloworld");
+    const result = await executeProgram(new Engine(), code);
+    expect(result.output).toBe("7210110810811132119111114108100");
+    expect(result.rendererState.value).toBe(100);
+  });
+
+  // Test program 1, output 0
+  test("output zero (1)", async () => {
+    const code = readTestProgram(__dirname, "zero1");
+    const result = await executeProgram(new Engine(), code);
+    expect(result.output).toBe("0");
+    expect(result.rendererState.value).toBe(0);
+  });
+
+  // Test program 2, output 0
+  test("output zero (2)", async () => {
+    const code = readTestProgram(__dirname, "zero2");
+    const result = await executeProgram(new Engine(), code);
+    expect(result.output).toBe("0");
+    expect(result.rendererState.value).toBe(0);
+  });
+
+  // Test program 3, output 288
+  test("output 288", async () => {
+    const code = readTestProgram(__dirname, "288");
+    const result = await executeProgram(new Engine(), code);
+    expect(result.output).toBe("288");
+    expect(result.rendererState.value).toBe(288);
+  });
+});

engines/deadfish/tests/zero1.txt

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+iissso

engines/deadfish/tests/zero2.txt

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+iissisdddddddddddddddddddddddddddddddddo