orchestration e2e tests to verify start after stop.

Bug: b/523382761

Author: ser-io

e2etests/orchestration/stop_start_test/BUILD.bazel

@@ -0,0 +1,26 @@
+# Copyright (C) 2026 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+load("@rules_go//go:def.bzl", "go_test")
+
+go_test(
+    name = "stop_start_test_test",
+    srcs = ["main_test.go"],
+    deps = [
+        "//orchestration/common",
+        "@com_github_google_android_cuttlefish_frontend//src/host_orchestrator/api/v1:api",
+        "@com_github_google_android_cuttlefish_frontend//src/libhoclient:libhoclient",
+        "@com_github_google_go_cmp//cmp",
+    ],
+)

e2etests/orchestration/stop_start_test/main_test.go

@@ -0,0 +1,126 @@
+// Copyright (C) 2026 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"encoding/json"
+	"log"
+	"testing"
+
+	"github.com/google/android-cuttlefish/e2etests/orchestration/common"
+
+	hoapi "github.com/google/android-cuttlefish/frontend/src/host_orchestrator/api/v1"
+	hoclient "github.com/google/android-cuttlefish/frontend/src/libhoclient"
+	"github.com/google/go-cmp/cmp"
+)
+
+const baseURL = "http://0.0.0.0:2080"
+
+func TestStopStart(t *testing.T) {
+	srv := hoclient.NewHostOrchestratorClient(baseURL)
+	t.Cleanup(func() {
+		if err := common.CollectHOLogs(baseURL); err != nil {
+			log.Printf("failed to collect HO logs: %s", err)
+		}
+	})
+	config := `
+  {
+    "instances": [
+      {
+        "vm": {
+					"crosvm": {
+						"enable_sandbox": false
+					},
+          "memory_mb": 8192,
+          "setupwizard_mode": "OPTIONAL",
+          "cpus": 8
+        },
+        "disk": {
+	 				"default_build": "@ab/aosp-android-latest-release/aosp_cf_x86_64_only_phone-userdebug",
+					"download_img_zip": true
+        },
+        "streaming": {
+          "device_id": "cvd-1"
+        }
+      },
+      {
+        "vm": {
+					"crosvm": {
+						"enable_sandbox": false
+					},
+          "memory_mb": 8192,
+          "setupwizard_mode": "OPTIONAL",
+          "cpus": 8
+        },
+        "disk": {
+	 				"default_build": "@ab/aosp-android-latest-release/aosp_cf_x86_64_only_phone-userdebug",
+					"download_img_zip": true
+        },
+        "streaming": {
+          "device_id": "cvd-1"
+        }
+      }
+    ]
+  }
+  `
+	envConfig := make(map[string]interface{})
+	if err := json.Unmarshal([]byte(config), &envConfig); err != nil {
+		t.Fatal(err)
+	}
+	createReq := &hoapi.CreateCVDRequest{
+		EnvConfig: envConfig,
+	}
+	if _, err := srv.CreateCVD(createReq, &hoclient.AccessTokenBuildAPICreds{}); err != nil {
+		t.Fatal(err)
+	}
+	cvds, err := srv.ListCVDs()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if diff := cmp.Diff(cvdStatus(cvds), []string{"Running", "Running"}); diff != "" {
+		t.Fatalf("status mismatch (-want +got):\n%s", diff)
+	}
+
+	if err := srv.StopGroup("cvd_1"); err != nil {
+		t.Fatal(err)
+	}
+	cvds, err = srv.ListCVDs()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if diff := cmp.Diff(cvdStatus(cvds), []string{"Stopped", "Stopped"}); diff != "" {
+		t.Fatalf("status mismatch (-want +got):\n%s", diff)
+	}
+
+	// TODO(b/523379344): Failing to boot.
+	// if err := srv.StartGroup("cvd_1", &hoapi.StartCVDRequest{}); err != nil {
+	// 	t.Fatal(err)
+	// }
+	// cvds, err = srv.ListCVDs()
+	// if err != nil {
+	// 	t.Fatal(err)
+	// }
+	// if diff := cmp.Diff(cvdStatus(cvds), []string{"Running", "Running"}); diff != "" {
+	// 	t.Fatalf("status mismatch (-want +got):\n%s", diff)
+	// }
+}
+
+func cvdStatus(cvds []*hoapi.CVD) []string {
+    res := make([]string, len(cvds))
+	  for i, v := range cvds {
+        res[i] = v.Status
+    }
+		return res
+}