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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
const TAB_URL = EXAMPLE_URL + "doc_closures.html";
// Test that inspecting a closure works as expected.
function test() {
let gPanel, gTab, gDebugger;
let options = {
source: TAB_URL,
line: 1
};
initDebugger(TAB_URL, options).then(([aTab,, aPanel]) => {
gTab = aTab;
gPanel = aPanel;
gDebugger = gPanel.panelWin;
testClosure()
.then(() => resumeDebuggerThenCloseAndFinish(gPanel))
.then(null, aError => {
ok(false, "Got an error: " + aError.message + "\n" + aError.stack);
});
});
function testClosure() {
generateMouseClickInTab(gTab, "content.document.querySelector('button')");
return waitForDebuggerEvents(gPanel, gDebugger.EVENTS.FETCHED_SCOPES).then(() => {
let gVars = gDebugger.DebuggerView.Variables;
let localScope = gVars.getScopeAtIndex(0);
let localNodes = localScope.target.querySelector(".variables-view-element-details").childNodes;
is(localNodes[4].querySelector(".name").getAttribute("value"), "person",
"Should have the right property name for |person|.");
is(localNodes[4].querySelector(".value").getAttribute("value"), "Object",
"Should have the right property value for |person|.");
// Expand the 'person' tree node. This causes its properties to be
// retrieved and displayed.
let personNode = gVars.getItemForNode(localNodes[4]);
let personFetched = waitForDebuggerEvents(gPanel, gDebugger.EVENTS.FETCHED_PROPERTIES);
personNode.expand();
return personFetched.then(() => {
is(personNode.expanded, true,
"|person| should be expanded at this point.");
is(personNode.get("getName").target.querySelector(".name")
.getAttribute("value"), "getName",
"Should have the right property name for 'getName' in person.");
is(personNode.get("getName").target.querySelector(".value")
.getAttribute("value"), "getName()",
"'getName' in person should have the right value.");
is(personNode.get("getFoo").target.querySelector(".name")
.getAttribute("value"), "getFoo",
"Should have the right property name for 'getFoo' in person.");
is(personNode.get("getFoo").target.querySelector(".value")
.getAttribute("value"), "getFoo()",
"'getFoo' in person should have the right value.");
// Expand the function nodes. This causes their properties to be
// retrieved and displayed.
let getFooNode = personNode.get("getFoo");
let getNameNode = personNode.get("getName");
let funcsFetched = waitForDebuggerEvents(gPanel, gDebugger.EVENTS.FETCHED_PROPERTIES, 2);
let funcClosuresFetched = waitForDebuggerEvents(gPanel, gDebugger.EVENTS.FETCHED_SCOPES, 2);
getFooNode.expand();
getNameNode.expand();
return funcsFetched.then(() => {
is(getFooNode.expanded, true,
"|person.getFoo| should be expanded at this point.");
is(getNameNode.expanded, true,
"|person.getName| should be expanded at this point.");
is(getFooNode.get("<Closure>").target.querySelector(".name")
.getAttribute("value"), "<Closure>",
"Found the closure node for getFoo.");
is(getFooNode.get("<Closure>").target.querySelector(".value")
.getAttribute("value"), "",
"The closure node has no value for getFoo.");
is(getNameNode.get("<Closure>").target.querySelector(".name")
.getAttribute("value"), "<Closure>",
"Found the closure node for getName.");
is(getNameNode.get("<Closure>").target.querySelector(".value")
.getAttribute("value"), "",
"The closure node has no value for getName.");
// Expand the closure nodes. This causes their environments to be
// retrieved and displayed.
let getFooClosure = getFooNode.get("<Closure>");
let getNameClosure = getNameNode.get("<Closure>");
getFooClosure.expand();
getNameClosure.expand();
return funcClosuresFetched.then(() => {
is(getFooClosure.expanded, true,
"|person.getFoo| closure should be expanded at this point.");
is(getNameClosure.expanded, true,
"|person.getName| closure should be expanded at this point.");
is(getFooClosure.get("Function scope [_pfactory]").target.querySelector(".name")
.getAttribute("value"), "Function scope [_pfactory]",
"Found the function scope node for the getFoo closure.");
is(getFooClosure.get("Function scope [_pfactory]").target.querySelector(".value")
.getAttribute("value"), "",
"The function scope node has no value for the getFoo closure.");
is(getNameClosure.get("Function scope [_pfactory]").target.querySelector(".name")
.getAttribute("value"), "Function scope [_pfactory]",
"Found the function scope node for the getName closure.");
is(getNameClosure.get("Function scope [_pfactory]").target.querySelector(".value")
.getAttribute("value"), "",
"The function scope node has no value for the getName closure.");
// Expand the scope nodes.
let getFooInnerScope = getFooClosure.get("Function scope [_pfactory]");
let getNameInnerScope = getNameClosure.get("Function scope [_pfactory]");
let innerFuncsFetched = waitForDebuggerEvents(gPanel, gDebugger.EVENTS.FETCHED_PROPERTIES, 2);
getFooInnerScope.expand();
getNameInnerScope.expand();
return funcsFetched.then(() => {
is(getFooInnerScope.expanded, true,
"|person.getFoo| inner scope should be expanded at this point.");
is(getNameInnerScope.expanded, true,
"|person.getName| inner scope should be expanded at this point.");
// Only test that each function closes over the necessary variable.
// We wouldn't want future SpiderMonkey closure space
// optimizations to break this test.
is(getFooInnerScope.get("foo").target.querySelector(".name")
.getAttribute("value"), "foo",
"Found the foo node for the getFoo inner scope.");
is(getFooInnerScope.get("foo").target.querySelector(".value")
.getAttribute("value"), "10",
"The foo node has the expected value.");
is(getNameInnerScope.get("name").target.querySelector(".name")
.getAttribute("value"), "name",
"Found the name node for the getName inner scope.");
is(getNameInnerScope.get("name").target.querySelector(".value")
.getAttribute("value"), '"Bob"',
"The name node has the expected value.");
});
});
});
});
});
}
}
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