Function main

tests/slice_model_letter_test.cpp:33–328

}

int main(int argc, char** argv)
{
    QCoreApplication app(argc, argv);

    // ── Fallback: letter() returns 'A' + sliceId when index_letter hasn't
    // arrived yet (older firmware, early in status sequence).
    {
        SliceModel s(2);
        EXPECT_EQ(s.letter(), QString("C"));  // 'A' + 2
    }

    // ── applyStatus("index_letter=A") populates the radio-given letter
    // and emits letterChanged with the resolved value.
    {
        SliceModel s(3);
        QSignalSpy spy(&s, &SliceModel::letterChanged);
        s.applyStatus(kv({{"index_letter", "A"}}));
        EXPECT_EQ(s.letter(), QString("A"));
        EXPECT_EQ(spy.count(), 1);
        EXPECT_EQ(spy.takeFirst().at(0).toString(), QString("A"));
    }

    // ── Re-applying the same letter does NOT re-emit letterChanged.
    {
        SliceModel s(1);
        s.applyStatus(kv({{"index_letter", "B"}}));
        QSignalSpy spy(&s, &SliceModel::letterChanged);
        s.applyStatus(kv({{"index_letter", "B"}}));
        EXPECT_EQ(spy.count(), 0);
    }

    // ── Letter change emits exactly once and the resolved value follows.
    {
        SliceModel s(2);
        s.applyStatus(kv({{"index_letter", "A"}}));
        QSignalSpy spy(&s, &SliceModel::letterChanged);
        s.applyStatus(kv({{"index_letter", "C"}}));
        EXPECT_EQ(s.letter(), QString("C"));
        EXPECT_EQ(spy.count(), 1);
        EXPECT_EQ(spy.takeFirst().at(0).toString(), QString("C"));
    }

    // ── emitLetterRefresh() forces a re-emission with the current value
    // (used when a display preference changes).
    {
        SliceModel s(0);
        s.applyStatus(kv({{"index_letter", "A"}}));
        QSignalSpy spy(&s, &SliceModel::letterChanged);
        s.emitLetterRefresh();
        EXPECT_EQ(spy.count(), 1);
        EXPECT_EQ(spy.takeFirst().at(0).toString(), QString("A"));
    }

    // ── Status messages without index_letter don't disturb the stored
    // letter or emit on letterChanged.
    {
        SliceModel s(2);
        s.applyStatus(kv({{"index_letter", "A"}}));