V2 verify JSON output is consistent and doesn't drift

$ cd test/apiv2
$ python -m unittest -v test_rest_v1_0_0.TestApi

Signed-off-by: Jhon Honce <jhonce@redhat.com>

12 files changed, 253 insertions, 12 deletions

diff --git a/pkg/api/handlers/compat/containers_attach.go b/pkg/api/handlers/compat/containers_attach.go
index 012e20daf..990140ee1 100644
--- a/pkg/api/handlers/compat/containers_attach.go
+++ b/pkg/api/handlers/compat/containers_attach.go
@@ -90,7 +90,7 @@ func AttachContainer(w http.ResponseWriter, r *http.Request) {
 	// For Docker compatibility, we need to re-initialize containers in these states.
 	if state == define.ContainerStateConfigured || state == define.ContainerStateExited {
 		if err := ctr.Init(r.Context()); err != nil {
-			utils.InternalServerError(w, errors.Wrapf(err, "error preparing container %s for attach", ctr.ID()))
+			utils.Error(w, "Container in wrong state", http.StatusConflict, errors.Wrapf(err, "error preparing container %s for attach", ctr.ID()))
 			return
 		}
 	} else if !(state == define.ContainerStateCreated || state == define.ContainerStateRunning) {
diff --git a/pkg/api/handlers/compat/containers_stats.go b/pkg/api/handlers/compat/containers_stats.go
index 62ccd2b93..048321add 100644
--- a/pkg/api/handlers/compat/containers_stats.go
+++ b/pkg/api/handlers/compat/containers_stats.go
@@ -45,8 +45,8 @@ func StatsContainer(w http.ResponseWriter, r *http.Request) {
 		utils.InternalServerError(w, err)
 		return
 	}
-	if state != define.ContainerStateRunning && !query.Stream {
-		utils.InternalServerError(w, define.ErrCtrStateInvalid)
+	if state != define.ContainerStateRunning {
+		utils.Error(w, "Container not running and streaming requested", http.StatusConflict, define.ErrCtrStateInvalid)
 		return
 	}
 
diff --git a/pkg/api/handlers/compat/resize.go b/pkg/api/handlers/compat/resize.go
index 3ead733bc..231b53175 100644
--- a/pkg/api/handlers/compat/resize.go
+++ b/pkg/api/handlers/compat/resize.go
@@ -1,10 +1,12 @@
 package compat
 
 import (
+	"fmt"
 	"net/http"
 	"strings"
 
 	"github.com/containers/libpod/libpod"
+	"github.com/containers/libpod/libpod/define"
 	"github.com/containers/libpod/pkg/api/handlers/utils"
 	"github.com/gorilla/schema"
 	"github.com/pkg/errors"
@@ -43,6 +45,14 @@ func ResizeTTY(w http.ResponseWriter, r *http.Request) {
 			utils.ContainerNotFound(w, name, err)
 			return
 		}
+		if state, err := ctnr.State(); err != nil {
+			utils.InternalServerError(w, errors.Wrapf(err, "cannot obtain container state"))
+			return
+		} else if state != define.ContainerStateRunning {
+			utils.Error(w, "Container not running", http.StatusConflict,
+				fmt.Errorf("container %q in wrong state %q", name, state.String()))
+			return
+		}
 		if err := ctnr.AttachResize(sz); err != nil {
 			utils.InternalServerError(w, errors.Wrapf(err, "cannot resize container"))
 			return
@@ -56,6 +66,14 @@ func ResizeTTY(w http.ResponseWriter, r *http.Request) {
 			utils.SessionNotFound(w, name, err)
 			return
 		}
+		if state, err := ctnr.State(); err != nil {
+			utils.InternalServerError(w, errors.Wrapf(err, "cannot obtain session container state"))
+			return
+		} else if state != define.ContainerStateRunning {
+			utils.Error(w, "Container not running", http.StatusConflict,
+				fmt.Errorf("container %q in wrong state %q", name, state.String()))
+			return
+		}
 		if err := ctnr.ExecResize(name, sz); err != nil {
 			utils.InternalServerError(w, errors.Wrapf(err, "cannot resize session"))
 			return
diff --git a/pkg/api/handlers/compat/types.go b/pkg/api/handlers/compat/types.go
index b8d06760f..6d47ede64 100644
--- a/pkg/api/handlers/compat/types.go
+++ b/pkg/api/handlers/compat/types.go
@@ -48,7 +48,7 @@ type StatsJSON struct {
 	Stats
 
 	Name string `json:"name,omitempty"`
-	ID   string `json:"id,omitempty"`
+	ID   string `json:"Id,omitempty"`
 
 	// Networks request version >=1.21
 	Networks map[string]docker.NetworkStats `json:"networks,omitempty"`
diff --git a/pkg/api/handlers/libpod/containers.go b/pkg/api/handlers/libpod/containers.go
index 3902bdc9b..50f6b1a38 100644
--- a/pkg/api/handlers/libpod/containers.go
+++ b/pkg/api/handlers/libpod/containers.go
@@ -66,6 +66,10 @@ func ListContainers(w http.ResponseWriter, r *http.Request) {
 		utils.InternalServerError(w, err)
 		return
 	}
+	if len(pss) == 0 {
+		utils.WriteResponse(w, http.StatusOK, "[]")
+		return
+	}
 	utils.WriteResponse(w, http.StatusOK, pss)
 }
 
diff --git a/pkg/api/handlers/types.go b/pkg/api/handlers/types.go
index d8cdd9caf..aa3d0fe91 100644
--- a/pkg/api/handlers/types.go
+++ b/pkg/api/handlers/types.go
@@ -120,7 +120,7 @@ type CreateContainerConfig struct {
 // swagger:model IDResponse
 type IDResponse struct {
 	// ID
-	ID string `json:"id"`
+	ID string `json:"Id"`
 }
 
 type ContainerTopOKBody struct {
diff --git a/pkg/domain/entities/images.go b/pkg/domain/entities/images.go
index 0f909ab37..968bcff3b 100644
--- a/pkg/domain/entities/images.go
+++ b/pkg/domain/entities/images.go
@@ -50,7 +50,7 @@ func (i *Image) Id() string {
 }
 
 type ImageSummary struct {
-	ID          string
+	ID          string            `json:"Id"`
 	ParentId    string            `json:",omitempty"`
 	RepoTags    []string          `json:",omitempty"`
 	Created     time.Time         `json:",omitempty"`
diff --git a/test/apiv2/10-images.at b/test/apiv2/10-images.at
index 2a1eaf8be..1c7ba8948 100644
--- a/test/apiv2/10-images.at
+++ b/test/apiv2/10-images.at
@@ -7,15 +7,15 @@
 podman pull -q $IMAGE
 
 t GET libpod/images/json 200 \
-  .[0].ID~[0-9a-f]\\{64\\}
-iid=$(jq -r '.[0].ID' <<<"$output")
+  .[0].Id~[0-9a-f]\\{64\\}
+iid=$(jq -r '.[0].Id' <<<"$output")
 
 t GET libpod/images/$iid/exists                     204
 t GET libpod/images/$PODMAN_TEST_IMAGE_NAME/exists  204
 
 # FIXME: compare to actual podman info
 t GET libpod/images/json 200  \
-  .[0].ID=${iid}
+  .[0].Id=${iid}
 
 t GET libpod/images/$iid/json 200 \
   .Id=$iid \
diff --git a/test/apiv2/40-pods.at b/test/apiv2/40-pods.at
index 26877a102..2dea1918a 100644
--- a/test/apiv2/40-pods.at
+++ b/test/apiv2/40-pods.at
@@ -5,8 +5,8 @@
 
 t GET  "libpod/pods/json (clean slate at start)"   200 null
 
-t POST libpod/pods/create name=foo 201 .id~[0-9a-f]\\{64\\}
-pod_id=$(jq -r .id <<<"$output")
+t POST libpod/pods/create name=foo 201 .Id~[0-9a-f]\\{64\\}
+pod_id=$(jq -r .Id <<<"$output")
 t GET  libpod/pods/foo/exists      204
 t GET  libpod/pods/$pod_id/exists  204
 t GET  libpod/pods/notfoo/exists   404
diff --git a/test/apiv2/rest_api/__init__.py b/test/apiv2/rest_api/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/test/apiv2/rest_api/__init__.py
diff --git a/test/apiv2/rest_api/test_rest_v1_0_0.py b/test/apiv2/rest_api/test_rest_v1_0_0.py
new file mode 100644
index 000000000..7c53623cb
--- /dev/null
+++ b/test/apiv2/rest_api/test_rest_v1_0_0.py
@@ -0,0 +1,219 @@
+import json
+import os
+import shlex
+import signal
+import string
+import subprocess
+import sys
+import time
+import unittest
+from collections.abc import Iterable
+from multiprocessing import Process
+
+import requests
+from dateutil.parser import parse
+
+
+def _url(path):
+    return "http://localhost:8080/v1.0.0/libpod" + path
+
+
+def podman():
+    binary = os.getenv("PODMAN_BINARY")
+    if binary is None:
+        binary = "bin/podman"
+    return binary
+
+
+def ctnr(path):
+    r = requests.get(_url("/containers/json?all=true"))
+    try:
+        ctnrs = json.loads(r.text)
+    except Exception as e:
+        sys.stderr.write("Bad container response: {}/{}".format(r.text, e))
+        raise e
+    return path.format(ctnrs[0]["Id"])
+
+
+class TestApi(unittest.TestCase):
+    podman = None
+
+    def setUp(self):
+        super().setUp()
+        if TestApi.podman.poll() is not None:
+            sys.stderr.write("podman service returned {}",
+                             TestApi.podman.returncode)
+            sys.exit(2)
+        requests.get(
+            _url("/images/create?fromSrc=docker.io%2Falpine%3Alatest"))
+        # calling out to podman is easier than the API for running a container
+        subprocess.run([podman(), "run", "alpine", "/bin/ls"],
+                       check=True,
+                       stdout=subprocess.DEVNULL,
+                       stderr=subprocess.DEVNULL)
+
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+
+        TestApi.podman = subprocess.Popen(
+            [
+                podman(), "system", "service", "tcp:localhost:8080",
+                "--log-level=debug", "--time=0"
+            ],
+            shell=False,
+            stdin=subprocess.DEVNULL,
+            stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL,
+        )
+        time.sleep(2)
+
+    @classmethod
+    def tearDownClass(cls):
+        TestApi.podman.terminate()
+        stdout, stderr = TestApi.podman.communicate(timeout=0.5)
+        if stdout:
+            print("\nService Stdout:\n" + stdout.decode('utf-8'))
+        if stderr:
+            print("\nService Stderr:\n" + stderr.decode('utf-8'))
+
+        if TestApi.podman.returncode > 0:
+            sys.stderr.write("podman exited with error code {}\n".format(
+                TestApi.podman.returncode))
+            sys.exit(2)
+
+        return super().tearDownClass()
+
+    def test_info(self):
+        r = requests.get(_url("/info"))
+        self.assertEqual(r.status_code, 200)
+        self.assertIsNotNone(r.content)
+        _ = json.loads(r.text)
+
+    def test_events(self):
+        r = requests.get(_url("/events?stream=false"))
+        self.assertEqual(r.status_code, 200, r.text)
+        self.assertIsNotNone(r.content)
+        for line in r.text.splitlines():
+            obj = json.loads(line)
+            # Actor.ID is uppercase for compatibility
+            _ = obj["Actor"]["ID"]
+
+    def test_containers(self):
+        r = requests.get(_url("/containers/json"), timeout=5)
+        self.assertEqual(r.status_code, 200, r.text)
+        obj = json.loads(r.text)
+        self.assertEqual(len(obj), 0)
+
+    def test_containers_all(self):
+        r = requests.get(_url("/containers/json?all=true"))
+        self.assertEqual(r.status_code, 200, r.text)
+        self.validateObjectFields(r.text)
+
+    def test_inspect_container(self):
+        r = requests.get(_url(ctnr("/containers/{}/json")))
+        self.assertEqual(r.status_code, 200, r.text)
+        obj = self.validateObjectFields(r.content)
+        _ = parse(obj["Created"])
+
+    def test_stats(self):
+        r = requests.get(_url(ctnr("/containers/{}/stats?stream=false")))
+        self.assertIn(r.status_code, (200, 409), r.text)
+        if r.status_code == 200:
+            self.validateObjectFields(r.text)
+
+    def test_delete_containers(self):
+        r = requests.delete(_url(ctnr("/containers/{}")))
+        self.assertEqual(r.status_code, 204, r.text)
+
+    def test_stop_containers(self):
+        r = requests.post(_url(ctnr("/containers/{}/start")))
+        self.assertIn(r.status_code, (204, 304), r.text)
+
+        r = requests.post(_url(ctnr("/containers/{}/stop")))
+        self.assertIn(r.status_code, (204, 304), r.text)
+
+    def test_start_containers(self):
+        r = requests.post(_url(ctnr("/containers/{}/stop")))
+        self.assertIn(r.status_code, (204, 304), r.text)
+
+        r = requests.post(_url(ctnr("/containers/{}/start")))
+        self.assertIn(r.status_code, (204, 304), r.text)
+
+    def test_restart_containers(self):
+        r = requests.post(_url(ctnr("/containers/{}/start")))
+        self.assertIn(r.status_code, (204, 304), r.text)
+
+        r = requests.post(_url(ctnr("/containers/{}/restart")), timeout=5)
+        self.assertEqual(r.status_code, 204, r.text)
+
+    def test_resize(self):
+        r = requests.post(_url(ctnr("/containers/{}/resize?h=43&w=80")))
+        self.assertIn(r.status_code, (200, 409), r.text)
+        if r.status_code == 200:
+            self.assertIsNone(r.text)
+
+    def test_attach_containers(self):
+        r = requests.post(_url(ctnr("/containers/{}/attach")))
+        self.assertIn(r.status_code, (101, 409), r.text)
+
+    def test_logs_containers(self):
+        r = requests.get(_url(ctnr("/containers/{}/logs?stdout=true")))
+        self.assertEqual(r.status_code, 200, r.text)
+
+    def test_post_create(self):
+        self.skipTest("TODO: create request body")
+        r = requests.post(_url("/containers/create?args=True"))
+        self.assertEqual(r.status_code, 200, r.text)
+        json.loads(r.text)
+
+    def test_commit(self):
+        r = requests.post(_url(ctnr("/commit?container={}")))
+        self.assertEqual(r.status_code, 200, r.text)
+        self.validateObjectFields(r.text)
+
+    def test_images(self):
+        r = requests.get(_url("/images/json"))
+        self.assertEqual(r.status_code, 200, r.text)
+        self.validateObjectFields(r.content)
+
+    def test_inspect_image(self):
+        r = requests.get(_url("/images/alpine/json"))
+        self.assertEqual(r.status_code, 200, r.text)
+        obj = self.validateObjectFields(r.content)
+        _ = parse(obj["Created"])
+
+    def test_delete_image(self):
+        r = requests.delete(_url("/images/alpine?force=true"))
+        self.assertEqual(r.status_code, 200, r.text)
+        json.loads(r.text)
+
+    def test_pull(self):
+        r = requests.post(_url("/images/pull?reference=alpine"), timeout=5)
+        self.assertEqual(r.status_code, 200, r.text)
+        json.loads(r.text)
+
+    def test_search(self):
+        # Had issues with this test hanging when repositories not happy
+        def do_search():
+            r = requests.get(_url("/images/search?term=alpine"), timeout=5)
+            self.assertEqual(r.status_code, 200, r.text)
+            json.loads(r.text)
+
+        search = Process(target=do_search)
+        search.start()
+        search.join(timeout=10)
+        self.assertFalse(search.is_alive(), "/images/search took too long")
+
+    def validateObjectFields(self, buffer):
+        objs = json.loads(buffer)
+        if not isinstance(objs, dict):
+            for o in objs:
+                _ = o["Id"]
+        else:
+            _ = objs["Id"]
+        return objs
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/test/system/010-images.bats b/test/system/010-images.bats
index 6957d4830..2b1845d72 100644
--- a/test/system/010-images.bats
+++ b/test/system/010-images.bats
@@ -28,7 +28,7 @@ load helpers
     # 'created': podman includes fractional seconds, podman-remote does not
     tests="
 Names[0]    | $PODMAN_TEST_IMAGE_FQN
-ID          |        [0-9a-f]\\\{64\\\}
+Id          |        [0-9a-f]\\\{64\\\}
 Digest      | sha256:[0-9a-f]\\\{64\\\}
 CreatedAt   | [0-9-]\\\+T[0-9:.]\\\+Z
 Size        | [0-9]\\\+