import { beforeAll, describe, expect, test } from "vitest";

import { expectJavaError, getJava } from "../testHelpers";

import { Java } from "../java";

describe("Java8", () => {

let java!: Java;

beforeAll(async () => {

java = await getJava();

});

test("call methods of a class that uses lambda expressions", () => {

try {

const TestLambda = java.import("TestLambda");

const lambda = new TestLambda();

const sum = lambda.testLambdaAdditionSync(23, 42);

expect(sum).toBe(65);

const diff = lambda.testLambdaSubtractionSync(23, 42);

expect(diff).toBe(-19);

} catch (err) {

expectJavaError(err);

const unsupportedVersion = java.instanceOf(err.cause, "java.lang.UnsupportedClassVersionError");

if (unsupportedVersion) {

console.log("JRE 1.8 not available");

} else {

console.error("Java8 test failed with unknown error:", err);

throw err;

}

}

});

});