// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following
//       disclaimer in the documentation and/or other materials provided
//       with the distribution.
//     * Neither the name of Google Inc. nor the names of its
//       contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// V8 assertion compatibility shim for Ladybird's test-js harness

function assertEquals(expected, actual, msg) {
    if (expected instanceof RegExp && actual instanceof RegExp) {
        expect(actual.source).toBe(expected.source);
        expect(actual.flags).toBe(expected.flags);
    } else if (Array.isArray(expected) && Array.isArray(actual)) {
        expect(actual).toEqual(expected);
    } else if (expected !== null && typeof expected === "object" && actual !== null && typeof actual === "object") {
        expect(actual).toEqual(expected);
    } else {
        expect(actual).toBe(expected);
    }
}

function assertTrue(val, msg) {
    expect(val).toBeTrue();
}

function assertFalse(val, msg) {
    expect(val).toBeFalse();
}

function assertNull(val, msg) {
    expect(val).toBeNull();
}

function assertNotNull(val, msg) {
    expect(val).not.toBeNull();
}

function assertThrows(fn, type_opt, msg_opt) {
    if (typeof fn === "string") {
        try {
            try {
                fn = new Function(fn);
            } catch (e) {
                return;
            }
        } catch (e) {
            return;
        }
    }
    if (typeof fn === "string") {
        try {
            try {
                fn = new Function(fn);
            } catch (e) {
                return;
            }
        } catch (e) {
            return;
        }
    }
    expect(fn).toThrow();
}

function assertDoesNotThrow(fn, msg) {
    fn();
}

function assertInstanceof(val, type, msg) {
    expect(val instanceof type).toBeTrue();
}

function assertUnreachable(msg) {
    expect().fail("unreachable" + (msg ? ": " + msg : ""));
}

function assertEarlyError(code) {
    assertThrows(() => new Function(code));
}

function assertThrowsAtRuntime(code, type_opt) {
    const f = new Function(code);
    assertThrows(f, type_opt);
}

function assertArrayEquals(expected, actual) {
    expect(actual).toEqual(expected);
}

test("regexp-results-cache", () => {
    var string =
        "Friends, Romans, countrymen, lend me your ears!  \
     I come to bury Caesar, not to praise him.        \
     The evil that men do lives after them,           \
     The good is oft interred with their bones;       \
     So let it be with Caesar. The noble Brutus       \
     Hath told you Caesar was ambitious;              \
     If it were so, it was a grievous fault,          \
     And grievously hath Caesar answer'd it.          \
     Here, under leave of Brutus and the rest-        \
     For Brutus is an honorable man;                  \
     So are they all, all honorable men-              \
     Come I to speak in Caesar's funeral.             \
     He was my friend, faithful and just to me;       \
     But Brutus says he was ambitious,                \
     And Brutus is an honorable man.                  \
     He hath brought many captives home to Rome,      \
     Whose ransoms did the general coffers fill.      \
     Did this in Caesar seem ambitious?               \
     When that the poor have cried, Caesar hath wept; \
     Ambition should be made of sterner stuff:        \
     Yet Brutus says he was ambitious,                \
     And Brutus is an honorable man.                  \
     You all did see that on the Lupercal             \
     I thrice presented him a kingly crown,           \
     Which he did thrice refuse. Was this ambition?   \
     Yet Brutus says he was ambitious,                \
     And sure he is an honorable man.                 \
     I speak not to disprove what Brutus spoke,       \
     But here I am to speak what I do know.           \
     You all did love him once, not without cause;    \
     What cause withholds you then to mourn for him?  \
     O judgement, thou art fled to brutish beasts,    \
     And men have lost their reason. Bear with me;    \
     My heart is in the coffin there with Caesar,     \
     And I must pause till it come back to me.";

    var replaced = string.replace(/\b\w+\b/g, function () {
        return "foo";
    });
    for (var i = 0; i < 3; i++) {
        assertEquals(
            replaced,
            string.replace(/\b\w+\b/g, function () {
                return "foo";
            })
        );
    }

    // Check that the result is in a COW array.
    var words = string.split(" ");
    assertEquals("Friends,", words[0]);
    words[0] = "Enemies,";
    words = string.split(" ");
    assertEquals("Friends,", words[0]);
});
