Add a powerwash e2etest

Bug: b/360440269
Test: cd e2etests && bazel test cvd/cvd_powerwash_tests/...

Author: jmacnak

e2etests/cvd/common/common.go

@@ -252,6 +252,21 @@ func (tc *TestContext) StopCVD() error {
 	return nil
 }
 
+// Performs `cvd powerwash`.
+func (tc *TestContext) CVDPowerwash() error {
+	tempdirEnv := map[string]string{
+		"HOME": tc.tempdir,
+	}
+
+	createCmd := []string{"cvd", "powerwash"};
+	if _, err := tc.RunCmdWithEnv(createCmd, tempdirEnv); err != nil {
+		log.Printf("Failed to powerwash instance(s): %w", err)
+		return err
+	}
+
+	return nil
+}
+
 // Common parameters for `cvd load`.
 type LoadArgs struct {
 	LoadConfig string

e2etests/cvd/cvd_powerwash_tests/BUILD.bazel

@@ -0,0 +1,47 @@
+# 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 = "cvd_powerwash_tests",
+    size = "large",
+    srcs = ["main_test.go"],
+    tags = [
+        "exclusive",
+        "external",
+        "no-sandbox",
+        "supports-graceful-termination",
+    ],
+    deps = [
+        "//cvd/common",
+    ],
+)
+
+go_test(
+    name = "cvd_powerwash_tests_additional_substitution",
+    size = "large",
+    srcs = ["main_test.go"],
+    data = ["//:debian_substitution_marker"],
+    env = {"LOCAL_DEBIAN_SUBSTITUTION_MARKER_FILE": "$(rlocationpath //:debian_substitution_marker)"},
+    tags = [
+        "exclusive",
+        "external",
+        "no-sandbox",
+        "supports-graceful-termination",
+    ],
+    deps = [
+        "//cvd/common",
+    ],
+)

e2etests/cvd/cvd_powerwash_tests/main_test.go

@@ -0,0 +1,60 @@
+// 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 (
+	"fmt"
+	"testing"
+
+	"github.com/google/android-cuttlefish/e2etests/cvd/common"
+)
+
+func TestCvdPowerwash(t *testing.T) {
+	testcases := []struct {
+		branch string
+		target string
+	}{
+		{
+			branch: "aosp-android-latest-release",
+			target: "aosp_cf_x86_64_only_phone-userdebug",
+		},
+	}
+	c := e2etests.TestContext{}
+	for _, tc := range testcases {
+		t.Run(fmt.Sprintf("BUILD=%s/%s", tc.branch, tc.target), func(t *testing.T) {
+			c.SetUp(t)
+			defer c.TearDown()
+
+			if err := c.CVDFetch(e2etests.FetchArgs{
+				DefaultBuildBranch: tc.branch,
+				DefaultBuildTarget: tc.target,
+			}); err != nil {
+				t.Fatal(err)
+			}
+
+			if err := c.CVDCreate(e2etests.CreateArgs{}); err != nil {
+				t.Fatal(err)
+			}
+
+			if err := c.CVDPowerwash(); err != nil {
+				t.Fatal(err)
+			}
+
+			if err := c.RunAdbWaitForDevice(); err != nil {
+				t.Fatalf("failed to wait for device to connect to adb: %w", err)
+			}
+		})
+	}
+}