Move stubs from ./stubs to ./shared/Stubs

Gathers all shared test code in single place.

tests/unit/shared/Stubs/PipeFactoryStub.ts

@@ -0,0 +1,29 @@
+import { IPipe } from '@/application/Parser/Script/Compiler/Expressions/Pipes/IPipe';
+import { IPipeFactory } from '@/application/Parser/Script/Compiler/Expressions/Pipes/PipeFactory';
+
+export class PipeFactoryStub implements IPipeFactory {
+  private readonly pipes = new Array<IPipe>();
+
+  public get(pipeName: string): IPipe {
+    const result = this.pipes.find((pipe) => pipe.name === pipeName);
+    if (!result) {
+      throw new Error(`pipe not registered: "${pipeName}"`);
+    }
+    return result;
+  }
+
+  public withPipe(pipe: IPipe) {
+    if (!pipe) {
+      throw new Error('missing pipe');
+    }
+    this.pipes.push(pipe);
+    return this;
+  }
+
+  public withPipes(pipes: IPipe[]) {
+    for (const pipe of pipes) {
+      this.withPipe(pipe);
+    }
+    return this;
+  }
+}