Add tests for $HOME

Adds two tests. One to make sure that $HOME is set when starting a container
via 'docker run' and one to make sure that $HOME is set for each container in a
multi-container sandbox.

Issue #701

PiperOrigin-RevId: 273395763

2 files changed, 42 insertions, 0 deletions

diff --git a/test/root/testdata/BUILD b/test/root/testdata/BUILD
index 14c19ef1e..125633680 100644
--- a/test/root/testdata/BUILD
+++ b/test/root/testdata/BUILD
@@ -10,6 +10,7 @@ go_library(
         "httpd.go",
         "httpd_mount_paths.go",
         "sandbox.go",
+        "simple.go",
     ],
     importpath = "gvisor.dev/gvisor/test/root/testdata",
     visibility = [
diff --git a/test/root/testdata/simple.go b/test/root/testdata/simple.go
new file mode 100644
index 000000000..1cca53f0c
--- /dev/null
+++ b/test/root/testdata/simple.go
@@ -0,0 +1,41 @@
+// Copyright 2018 The gVisor Authors.
+//
+// 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 testdata
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+// SimpleSpec returns a JSON config for a simple container that runs the
+// specified command in the specified image.
+func SimpleSpec(name, image string, cmd []string) string {
+	cmds, err := json.Marshal(cmd)
+	if err != nil {
+		// This shouldn't happen.
+		panic(err)
+	}
+	return fmt.Sprintf(`
+{
+        "metadata": {
+                "name": %q
+        },
+        "image": {
+                "image": %q
+        },
+        "command": %s
+	}
+`, name, image, cmds)
+}