[netinstall] Add tests for fallback loading

- first success that has data is kept

src/modules/netinstall/Tests.cpp

@@ -345,9 +345,12 @@ ItemTests::testUrlFallback_data()
     QTest::newRow( "bad" ) << "1a-single-bad.conf" << smash( S::FailedBadConfiguration ) << 0;
     QTest::newRow( "empty" ) << "1a-single-empty.conf" << smash( S::FailedNoData ) << 0;
     QTest::newRow( "error" ) << "1a-single-error.conf" << smash( S::FailedBadData ) << 0;
-    QTest::newRow( "second" ) << "1b-single-small.conf" << smash( S::Ok ) << 2;
+    QTest::newRow( "two" ) << "1b-single-small.conf" << smash( S::Ok ) << 2;
+    QTest::newRow( "five" ) << "1b-single-large.conf" << smash( S::Ok ) << 5;
     QTest::newRow( "none" ) << "1c-none.conf" << smash( S::FailedNoData ) << 0;
     QTest::newRow( "unset" ) << "1c-unset.conf" << smash( S::FailedNoData ) << 0;
+    QTest::newRow( "fallback-small" ) << "1d-fallback-small.conf" << smash( S::Ok ) << 2;
+    QTest::newRow( "fallback-large" ) << "1d-fallback-large.conf" << smash( S::Ok ) << 5;
 }
 
 void

src/modules/netinstall/tests/1b-single-large.conf

@@ -0,0 +1,7 @@
+# SPDX-FileCopyrightText: no
+# SPDX-License-Identifier: CC0-1.0
+#
+---
+required: true
+groupsUrl:
+    - file://$TESTDIR/data-large.yaml

src/modules/netinstall/tests/1d-fallback-large.conf

@@ -0,0 +1,10 @@
+# SPDX-FileCopyrightText: no
+# SPDX-License-Identifier: CC0-1.0
+#
+---
+required: true
+groupsUrl:
+    - file://$TESTDIR/data-nonexistent.yaml
+    - file://$TESTDIR/data-bad.yaml
+    - file://$TESTDIR/data-large.yaml
+    - file://$TESTDIR/data-small.yaml

src/modules/netinstall/tests/1d-fallback-small.conf

@@ -0,0 +1,10 @@
+# SPDX-FileCopyrightText: no
+# SPDX-License-Identifier: CC0-1.0
+#
+---
+required: true
+groupsUrl:
+    - file://$TESTDIR/data-nonexistent.yaml
+    - file://$TESTDIR/data-bad.yaml
+    - file://$TESTDIR/data-small.yaml
+    - file://$TESTDIR/data-large.yaml

src/modules/netinstall/tests/data-large.yaml

@@ -0,0 +1,38 @@
+# SPDX-FileCopyrightText: no
+# SPDX-License-Identifier: CC0-1.0
+#
+- name: "Default"
+  description: "Default group"
+  hidden: false
+  selected: true
+  critical: false
+  packages:
+    - base
+- name: "Two"
+  description: "group 2"
+  hidden: false
+  selected: true
+  critical: false
+  packages:
+    - chakra-live-two
+- name: "Three"
+  description: "group 3"
+  hidden: false
+  selected: true
+  critical: false
+  packages:
+    - chakra-live-three
+- name: "Four"
+  description: "group 4"
+  hidden: false
+  selected: true
+  critical: false
+  packages:
+    - chakra-live-four
+- name: "Five"
+  description: "group 5"
+  hidden: false
+  selected: true
+  critical: false
+  packages:
+    - chakra-live-five