SLING-9620 - ResourceMapperImpl.getAllMappings does not respect multi-valued sling:alias

Add failing tests

rombert: ignoring tests until they pass, small tweaks to InMemoryResourceProvider and test data
diff --git a/src/test/java/org/apache/sling/resourceresolver/impl/mapping/InMemoryResourceProvider.java b/src/test/java/org/apache/sling/resourceresolver/impl/mapping/InMemoryResourceProvider.java
index 52f1fad..718ed55 100644
--- a/src/test/java/org/apache/sling/resourceresolver/impl/mapping/InMemoryResourceProvider.java
+++ b/src/test/java/org/apache/sling/resourceresolver/impl/mapping/InMemoryResourceProvider.java
@@ -70,6 +70,10 @@
         putResource(path, Collections.singletonMap(key, value));
     }
 
+    public void putResource(String path, String key, Object... values) {
+        putResource(path, Collections.singletonMap(key, values));
+    }
+
     public void putResource(String path, String key, Object value, String key2, Object value2) {
         Map<String, Object> props = new HashMap<>();
         props.put(key, value);
diff --git a/src/test/java/org/apache/sling/resourceresolver/impl/mapping/ResourceMapperImplTest.java b/src/test/java/org/apache/sling/resourceresolver/impl/mapping/ResourceMapperImplTest.java
index 67a00f6..56001aa 100644
--- a/src/test/java/org/apache/sling/resourceresolver/impl/mapping/ResourceMapperImplTest.java
+++ b/src/test/java/org/apache/sling/resourceresolver/impl/mapping/ResourceMapperImplTest.java
@@ -49,6 +49,7 @@
 import org.jetbrains.annotations.NotNull;
 import org.junit.After;
 import org.junit.Before;
+import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -104,6 +105,7 @@
         resourceProvider.putResource("/"); // root
         resourceProvider.putResource("/here"); // regular page
         resourceProvider.putResource("/there", PROP_ALIAS, "alias-value"); // with alias
+        resourceProvider.putResource("/there-multiple", PROP_ALIAS, "alias-value-3", "alias-value-4"); // with multivalued alias
         resourceProvider.putResource("/somewhere", PROP_ALIAS, "alias-value-2"); // with alias and also /etc/map
         resourceProvider.putResource("/there/that"); // parent has alias
         resourceProvider.putResource("/content");
@@ -194,6 +196,23 @@
     }
 
     /**
+     * Validates that mappings for a existing resource with multiple alias contain the alias and the resource's path
+     *
+     * @throws LoginException
+     */
+    @Test
+    @Ignore("SLING-9620")
+    public void mapResourceWithMultivaluedAlias() {
+
+        ExpectedMappings.existingResource("/there-multiple")
+                .singleMapping("/alias-value-3")
+                .singleMappingWithRequest("/app/alias-value-3")
+                .allMappings("/alias-value-3", "/alias-value-4", "/there-multiple")
+                .allMappingsWithRequest("/app/alias-value-3", "/app/alias-value-4", "/app/there-multiple")
+                .verify(resolver, req);
+    }
+
+    /**
      * Validates that mappings for a existing resource with an alias and /etc/map entry
      * contain the /etc/map entry, the alias and the resource's path
      *