1 files changed, 66 insertions, 0 deletions
diff --git a/Timeline/ClientApp/src/app/test-utilities/activated-route.mock.ts b/Timeline/ClientApp/src/app/test-utilities/activated-route.mock.ts
new file mode 100644
index 00000000..1743e615
--- /dev/null
+++ b/Timeline/ClientApp/src/app/test-utilities/activated-route.mock.ts
@@ -0,0 +1,66 @@
+import { ParamMap } from '@angular/router';
+
+import { Observable, BehaviorSubject } from 'rxjs';
+import { map } from 'rxjs/operators';
+
+export interface ParamMapCreator { [name: string]: string | string[]; }
+
+export class MockActivatedRouteSnapshot {
+
+  private paramMapInternal: ParamMap;
+
+  constructor({ mockParamMap }: { mockParamMap: ParamMapCreator } = { mockParamMap: {} }) {
+    this.paramMapInternal = {
+      keys: Object.keys(mockParamMap),
+      get(name: string): string | null {
+        const param = mockParamMap[name];
+        if (typeof param === 'string') {
+          return param;
+        } else if (param instanceof Array) {
+          if (param.length === 0) {
+            return null;
+          }
+          return param[0];
+        }
+        return null;
+      },
+      getAll(name: string): string[] {
+        const param = mockParamMap[name];
+        if (typeof param === 'string') {
+          return [param];
+        } else if (param instanceof Array) {
+          return param;
+        }
+        return [];
+      },
+      has(name: string): boolean {
+        return mockParamMap.hasOwnProperty(name);
+      }
+    };
+  }
+
+  get paramMap(): ParamMap {
+    return this.paramMapInternal;
+  }
+}
+
+export class MockActivatedRoute {
+
+  snapshot$ = new BehaviorSubject<MockActivatedRouteSnapshot>(new MockActivatedRouteSnapshot());
+
+  get paramMap(): Observable<ParamMap> {
+    return this.snapshot$.pipe(map(snapshot => snapshot.paramMap));
+  }
+
+  get snapshot(): MockActivatedRouteSnapshot {
+    return this.snapshot$.value;
+  }
+
+  pushSnapshot(snapshot: MockActivatedRouteSnapshot) {
+    this.snapshot$.next(snapshot);
+  }
+
+  pushSnapshotWithParamMap(mockParamMap: ParamMapCreator) {
+    this.pushSnapshot(new MockActivatedRouteSnapshot({mockParamMap}));
+  }
+}