test(Components.StatusImageCropPanel): basic validation tests for the image crop component

updates #5401

tests/TestComponents/tst_test-StatusImageCropPanel.qml

@@ -0,0 +1,86 @@
+import QtQuick 2.0
+import QtTest 1.0
+
+import StatusQ.Components 0.1
+import StatusQ.Controls 0.1
+
+import StatusQ.TestHelpers 0.1
+
+Item {
+    width: 400
+    height: 300
+
+    Component {
+        id: noSourceComponent
+
+        StatusImageCropPanel {
+            anchors.fill: parent
+
+            windowStyle: StatusImageCrop.WindowStyle.Rounded
+        }
+    }
+
+    Component {
+        id: withSourceComponent
+
+        StatusImageCropPanel {
+            anchors.fill: parent
+
+            // TODO: generate test image and break the sandbox dependency
+            source: `${Qt.resolvedUrl(".")}../../sandbox/demoapp/data/logo-test-image.png`
+            windowStyle: StatusImageCrop.WindowStyle.Rectangular
+            Component.onCompleted: setCropRect(Qt.rect(10, 0, sourceSize.width - 20, sourceSize.height))
+        }
+    }
+
+    Loader {
+        id: testLoader
+
+        anchors.fill: parent
+        active: false
+    }
+
+    TestCase {
+        id: qmlWarningsTest
+
+        name: "CheckQmlWarnings"
+
+        when: windowShown
+
+        //
+        // Test guards
+
+        function init() {
+            qtOuput.restartCapturing()
+        }
+
+        function cleanup() {
+            testLoader.active = false
+        }
+
+        //
+        // Tests
+
+        function test_no_source_initialization() {
+            testLoader.sourceComponent = noSourceComponent
+            testLoader.active = true
+            verify(waitForRendering(testLoader.item))
+            testLoader.active = false
+            wait(100)
+            verify(qtOuput.qtOuput().length === 0, `No output expected. Found:\n"${qtOuput.qtOuput()}"\n`)
+        }
+
+        function test_with_source_initialization() {
+            testLoader.sourceComponent = withSourceComponent
+            testLoader.active = true
+            verify(waitForRendering(testLoader.item))
+            testLoader.active = false
+            wait(100)
+            verify(qtOuput.qtOuput().length === 0, `No output expected. Found:\n"${qtOuput.qtOuput()}"\n`)
+        }
+    }
+
+    MonitorQtOutput {
+        id: qtOuput
+    }
+}