discourse/test/javascripts/controllers/history-test.js.es6

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moduleFor("controller:history");
QUnit.test("displayEdit", async function(assert) {
const HistoryController = this.subject();
HistoryController.setProperties({
model: { last_revision: 3, current_revision: 3, can_edit: false },
topicController: {}
});
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assert.equal(
HistoryController.get("displayEdit"),
false,
"it should not display edit button when user cannot edit the post"
);
HistoryController.set("model.can_edit", true);
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assert.equal(
HistoryController.get("displayEdit"),
true,
"it should display edit button when user can edit the post"
);
HistoryController.set("topicController", null);
assert.equal(
HistoryController.get("displayEdit"),
false,
"it should not display edit button when there is not topic controller"
);
HistoryController.set("topicController", {});
HistoryController.set("model.current_revision", 2);
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assert.equal(
HistoryController.get("displayEdit"),
false,
"it should only display the edit button on the latest revision"
);
const html = `<div class="revision-content">
<p><img src="/uploads/default/original/1X/6b963ffc13cb0c053bbb90c92e99d4fe71b286ef.jpg" alt="" class="diff-del"><img/src=x onerror=alert(document.domain)>" width="276" height="183"></p>
</div>
<table background="javascript:alert(\"HACKEDXSS\")">
<thead>
<tr>
<th>Column</th>
<th style="text-align:left">Test</th>
</tr>
</thead>
<tbody>
<tr>
<td background="javascript:alert('HACKEDXSS')">Osama</td>
<td style="text-align:right">Testing</td>
</tr>
</tbody>
</table>`;
const expectedOutput = `<div class="revision-content">
<p><img src="/uploads/default/original/1X/6b963ffc13cb0c053bbb90c92e99d4fe71b286ef.jpg" alt class="diff-del">" width="276" height="183"&gt;</p>
</div>
<table>
<thead>
<tr>
<th>Column</th>
<th style="text-align:left">Test</th>
</tr>
</thead>
<tbody>
<tr>
<td>Osama</td>
<td style="text-align:right">Testing</td>
</tr>
</tbody>
</table>`;
HistoryController.setProperties({
viewMode: "side_by_side",
model: {
body_changes: {
side_by_side: html
}
}
});
await HistoryController.bodyDiffChanged();
const output = HistoryController.get("bodyDiff");
assert.equal(output, expectedOutput, "it keeps safe HTML");
});