LayoutTests/js/dom/var-declarations.html

<p>This page tests var declarations inside various block structures and control statements.</pre>
<pre id="console"></pre>

<script>
if (window.testRunner)
    testRunner.dumpAsText();
    
function log(s)
{
    document.getElementById("console").appendChild(document.createTextNode(s + "\n"));
}

function shouldBe(a, b)
{
    var evalA;
    try {
        evalA = eval(a);
    } catch (e) {
        evalA = e;
    }
    
    if (evalA === b) {
        log("PASS: " + a + " should be " + b + " and is.");
    } else {
        log("FAIL: " + a + " should be " + b + " but instead is " + evalA + ".");
    }
}

function testDeclarations(title)
{
    var vars = [
        "v1",
        "v2",
        "v3",
        "v4",
        "v5",
        "v6",
        "v7",
        "v8",
        "v9"
    ];

    log(title);
    log("-----");
    for (var i = 0; i < vars.length; ++i)
        shouldBe("'" + vars[i] + "' in window", true);
}

testDeclarations("Before executing blocks containing var declarations: ");

{
    var v1;
}

if (false) {
    var v2;
}

switch (true) {
    case true: {
        var v3;
        break;
    }
    case false: {
        var v4;
        break;
    }
}

for (var i = 0; i < 0; ++i) {
    var v5;
}

do {
    var v6;
} while(0);

while (0) {
    var v7;
}

for (var p in {}) {
    var v8;
}

with ({}) {
    var v9;
}

log("");
testDeclarations("After executing blocks containing var declarations: ");

</script>