1 files changed, 81 insertions, 0 deletions
diff --git a/tests/auto/widgets/widgets/qspinbox/tst_qspinbox.cpp b/tests/auto/widgets/widgets/qspinbox/tst_qspinbox.cpp
index 07a2fd859d..5ee9160916 100644
--- a/tests/auto/widgets/widgets/qspinbox/tst_qspinbox.cpp
+++ b/tests/auto/widgets/widgets/qspinbox/tst_qspinbox.cpp
@@ -145,6 +145,8 @@ private slots:
 
     void wheelEvents();
 
+    void adaptiveDecimalStep();
+
 public slots:
     void valueChangedHelper(const QString &);
     void valueChangedHelper(int);
@@ -1240,5 +1242,84 @@ void tst_QSpinBox::wheelEvents()
 #endif
 }
 
+void tst_QSpinBox::adaptiveDecimalStep()
+{
+    SpinBox spinBox;
+    spinBox.setRange(-100000, 100000);
+    spinBox.setStepType(SpinBox::StepType::AdaptiveDecimalStepType);
+
+    // Positive values
+
+    spinBox.setValue(0);
+
+    // Go from 0 to 100
+    for (int i = 0; i < 100; i++) {
+        QCOMPARE(spinBox.value(), i);
+        spinBox.stepBy(1);
+    }
+
+    // Go from 100 to 1000
+    for (int i = 100; i < 1000; i += 10) {
+        QCOMPARE(spinBox.value(), i);
+        spinBox.stepBy(1);
+    }
+
+    // Go from 1000 to 10000
+    for (int i = 1000; i < 10000; i += 100) {
+        QCOMPARE(spinBox.value(), i);
+        spinBox.stepBy(1);
+    }
+
+    // Test decreasing the values now
+
+    // Go from 10000 down to 1000
+    for (int i = 10000; i > 1000; i -= 100) {
+        QCOMPARE(spinBox.value(), i);
+        spinBox.stepBy(-1);
+    }
+
+    // Go from 1000 down to 100
+    for (int i = 1000; i > 100; i -= 10) {
+        QCOMPARE(spinBox.value(), i);
+        spinBox.stepBy(-1);
+    }
+
+    // Negative values
+
+    spinBox.setValue(0);
+
+    // Go from 0 to -100
+    for (int i = 0; i > -100; i--) {
+        QCOMPARE(spinBox.value(), i);
+        spinBox.stepBy(-1);
+    }
+
+    // Go from -100 to -1000
+    for (int i = -100; i > -1000; i -= 10) {
+        QCOMPARE(spinBox.value(), i);
+        spinBox.stepBy(-1);
+    }
+
+    // Go from 1000 to 10000
+    for (int i = -1000; i > -10000; i -= 100) {
+        QCOMPARE(spinBox.value(), i);
+        spinBox.stepBy(-1);
+    }
+
+    // Test increasing the values now
+
+    // Go from -10000 up to -1000
+    for (int i = -10000; i < -1000; i += 100) {
+        QCOMPARE(spinBox.value(), i);
+        spinBox.stepBy(1);
+    }
+
+    // Go from -1000 up to -100
+    for (int i = -1000; i < -100; i += 10) {
+        QCOMPARE(spinBox.value(), i);
+        spinBox.stepBy(1);
+    }
+}
+
 QTEST_MAIN(tst_QSpinBox)
 #include "tst_qspinbox.moc"