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function test() {
var tab1 = gBrowser.selectedTab;
var tab2 = BrowserTestUtils.addTab(gBrowser);
var childTab1;
var childTab2;
childTab1 = BrowserTestUtils.addTab(gBrowser, "about:blank", {
relatedToCurrent: true,
});
gBrowser.selectedTab = childTab1;
gBrowser.removeTab(gBrowser.selectedTab, { skipPermitUnload: true });
is(
idx(gBrowser.selectedTab),
idx(tab1),
"closing a tab next to its parent selects the parent"
);
childTab1 = BrowserTestUtils.addTab(gBrowser, "about:blank", {
relatedToCurrent: true,
});
gBrowser.selectedTab = tab2;
gBrowser.selectedTab = childTab1;
gBrowser.removeTab(gBrowser.selectedTab, { skipPermitUnload: true });
is(
idx(gBrowser.selectedTab),
idx(tab2),
"closing a tab next to its parent doesn't select the parent if another tab had been selected ad interim"
);
gBrowser.selectedTab = tab1;
childTab1 = BrowserTestUtils.addTab(gBrowser, "about:blank", {
relatedToCurrent: true,
});
childTab2 = BrowserTestUtils.addTab(gBrowser, "about:blank", {
relatedToCurrent: true,
});
gBrowser.selectedTab = childTab1;
gBrowser.removeTab(gBrowser.selectedTab, { skipPermitUnload: true });
is(
idx(gBrowser.selectedTab),
idx(childTab2),
"closing a tab next to its parent selects the next tab with the same parent"
);
gBrowser.removeTab(gBrowser.selectedTab, { skipPermitUnload: true });
is(
idx(gBrowser.selectedTab),
idx(tab2),
"closing the last tab in a set of child tabs doesn't go back to the parent"
);
gBrowser.removeTab(tab2, { skipPermitUnload: true });
}
function idx(tab) {
return Array.prototype.indexOf.call(gBrowser.tabs, tab);
}
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