Exercise group encryption choice through real Qt input events

tools/chatgui/tests/test_file_drop.cpp

@@ -21,6 +21,7 @@ extern "C" {
 #include <QUrl>
 #include <QMessageBox>
 #include <QAbstractButton>
+#include <QPushButton>
 
 static QString makeFile(const QTemporaryDir& dir, const QString& name, const QByteArray& contents = "test") {
     const QString path = dir.filePath(name);
@@ -46,6 +47,28 @@ static bool dropUrls(QWidget* target, const QList<QUrl>& urls, bool process = tr
 class FileDropTest : public QObject {
     Q_OBJECT
 private slots:
+    void encryptedAttachmentCapturesTargetAndResetsChoice() {
+        QTemporaryDir dir; QVERIFY(dir.isValid());
+        const QString file = makeFile(dir, "private.txt", "private bytes");
+        InputBar bar(nullptr, nullptr); bar.show(); bar.setRecordingContext(dir.filePath("media"), "123");
+        auto* editor = bar.findChild<QTextEdit*>(); QVERIFY(editor);
+        auto* encrypt = bar.findChild<QPushButton*>("encryptAttachmentButton"); QVERIFY(encrypt);
+        QSignalSpy ordinary(&bar, &InputBar::sendFileAttachment);
+        int encrypted = 0;
+        connect(&bar, &InputBar::submitAttachment, &bar, [&](const QString& target, attachment_send_req* request) {
+            QCOMPARE(target, QString("123")); QVERIFY(request->encrypted); QCOMPARE(request->info.kind, ATTACHMENT_FILE);
+            QCOMPARE(QString::fromUtf8(request->source), file); QCOMPARE(QString::fromUtf8(request->info.name), QString("private.txt"));
+            ++encrypted; u_free(request);
+        });
+        QVERIFY(dropUrls(editor->viewport(), {QUrl::fromLocalFile(file)}));
+        QTest::mouseClick(encrypt, Qt::LeftButton); QVERIFY(encrypt->isChecked());
+        QTest::keyClick(editor, Qt::Key_Return);
+        QCOMPARE(encrypted, 1); QCOMPARE(ordinary.size(), 0); QVERIFY(!encrypt->isChecked()); QVERIFY(QFile::exists(file));
+        QTest::mouseClick(encrypt, Qt::LeftButton); QVERIFY(encrypt->isChecked());
+        bar.setRecordingContext(dir.filePath("media"), "456"); QVERIFY(!encrypt->isChecked());
+        bar.setDmMode(true); QVERIFY(encrypt->isHidden()); QVERIFY(!encrypt->isChecked());
+    }
+
     void replyDraftAndLateResults() {
         InputBar bar(nullptr, nullptr); bar.resize(600, 160); bar.show(); bar.setRecordingContext("/tmp", "123");
         auto* editor = bar.findChild<QTextEdit*>(); QVERIFY(editor);