chore: improve tests, add more sample documentation

Author: ndr-brt

edc-extensions/multi-tenancy/README.md

@@ -1,4 +1,4 @@
-# Multitenancy
+# Multi Tenancy
 
 This extension provide support for a multi-tenant EDC.
 

edc-extensions/multi-tenancy/src/test/java/org/eclipse/tractusx/edc/boot/runtime/MultiTenantRuntimeTest.java

@@ -14,47 +14,52 @@
 
 package org.eclipse.tractusx.edc.boot.runtime;
 
-import static org.junit.jupiter.api.Assertions.*;
-
-import java.util.concurrent.atomic.AtomicInteger;
 import org.eclipse.dataspaceconnector.spi.EdcException;
-import org.eclipse.dataspaceconnector.spi.system.ServiceExtensionContext;
+import org.eclipse.dataspaceconnector.spi.monitor.Monitor;
+import org.jetbrains.annotations.NotNull;
 import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentMatcher;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.argThat;
+import static org.mockito.Mockito.*;
 
 class MultiTenantRuntimeTest {
 
-  private final AtomicInteger initializationCount = new AtomicInteger(0);
+  private final Monitor monitor = mock(Monitor.class);
   private final MultiTenantRuntime runtime =
       new MultiTenantRuntime() {
         @Override
-        protected void initializeContext(ServiceExtensionContext context) {
-          initializationCount.addAndGet(1);
-          super.initializeContext(context);
+        protected @NotNull Monitor createMonitor() {
+          return monitor;
         }
       };
 
   @Test
   void throwsExceptionIfNoTenantsPropertyProvided() {
     assertThrows(EdcException.class, runtime::boot);
-    assertEquals(0, initializationCount.get());
+    verify(monitor, never()).info(argThat(connectorIsReady()));
   }
 
   @Test
   void throwsExceptionIfTenantsFileDoesNotExist() {
     System.setProperty("edc.tenants.path", "unexistentfile");
 
     assertThrows(EdcException.class, runtime::boot);
-    assertEquals(0, initializationCount.get());
+    verify(monitor, never()).info(argThat(connectorIsReady()));
   }
 
   @Test
   void threadForEveryTenant() {
-    int threadsBefore = Thread.activeCount();
     System.setProperty("edc.tenants.path", "./src/test/resources/tenants.properties");
 
     runtime.boot();
 
-    assertTrue(Thread.activeCount() > threadsBefore);
-    assertEquals(2, initializationCount.get());
+    verify(monitor, times(2)).info(argThat(connectorIsReady()));
   }
+
+    @NotNull
+    private ArgumentMatcher<String> connectorIsReady() {
+        return message -> message.endsWith(" ready");
+    }
 }

samples/sample-multi-tenancy/README.md

@@ -9,3 +9,39 @@ Run:
 ```shell
 java -jar -Dedc.tenants.path=samples/sample-multi-tenancy/tenants.properties samples/sample-multi-tenancy/target/sample-multi-tenancy.jar
 ```
+
+Create an asset on `first` tenant:
+```shell
+curl -X POST http://localhost:18181/api/assets \
+    --header 'X-Api-Key: password' \
+    --header 'Content-Type: application/json' \
+    --data '{
+             "asset": {
+                "properties": {
+                        "asset:prop:id": "1",
+                        "asset:prop:description": "Product EDC Demo Asset"
+                    }
+                },
+                "dataAddress": {
+                    "properties": {
+                        "type": "HttpData",
+                        "baseUrl": "https://jsonplaceholder.typicode.com/todos/1"
+                    }
+                }
+            }'
+```
+
+Get `first` tenant assets:
+```
+curl -X GET http://localhost:18181/api/assets
+[{"createdAt":1666075635217,"properties":{"asset:prop:description":"Product EDC Demo Asset","asset:prop:id":"1"},"id":"1"}]
+```
+
+`second` and `third` tenants will have no assets:
+```shell
+curl -X GET http://localhost:28181/api/assets
+[]
+
+curl -X GET http://localhost:38181/api/assets
+[]
+```