add GET /instance CMD

1 files changed, 197 insertions, 0 deletions

diff --git a/src/testing/testing_api_cmd_get_instance.c b/src/testing/testing_api_cmd_get_instance.c
new file mode 100644
index 00000000..5dc1d3d0
--- /dev/null
+++ b/src/testing/testing_api_cmd_get_instance.c
@@ -0,0 +1,197 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2020 Taler Systems SA
+
+  TALER is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 3, or
+  (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public
+  License along with TALER; see the file COPYING.  If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file lib/testing_api_cmd_get_instance.c
+ * @brief command to test GET /instance/$ID
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <taler/taler_exchange_service.h>
+#include <taler/taler_testing_lib.h>
+#include "taler_merchant_service.h"
+#include "taler_merchant_testing_lib.h"
+
+
+/**
+ * State of a "GET instance" CMD.
+ */
+struct GetInstanceState
+{
+
+  /**
+   * Handle for a "GET instance" request.
+   */
+  struct TALER_MERCHANT_InstanceGetHandle *igh;
+
+  /**
+   * The interpreter state.
+   */
+  struct TALER_TESTING_Interpreter *is;
+
+  /**
+   * Base URL of the merchant serving the request.
+   */
+  const char *merchant_url;
+
+  /**
+   * ID of the instance to run GET for.
+   */
+  const char *instance_id;
+
+  /**
+   * Reference for a POST or PATCH /instances CMD (optional).
+   */
+  const char *instance_reference;
+
+  /**
+   * Expected HTTP response code.
+   */
+  unsigned int http_status;
+
+};
+
+
+/**
+ * Callback for a /get/instance/$ID operation.
+ *
+ * @param cls closure for this function
+ */
+static void
+get_instance_cb (void *cls,
+                 const struct TALER_MERCHANT_HttpResponse *hr,
+                 unsigned int accounts_length,
+                 const struct TALER_MERCHANT_Account accounts[],
+                 const struct TALER_MERCHANT_InstanceDetails *details)
+{
+  /* FIXME, deeper checks should be implemented here. */
+  struct GetInstanceState *gis = cls;
+
+  gis->igh = NULL;
+  if (gis->http_status != hr->http_status)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u (%d) to command %s\n",
+                hr->http_status,
+                (int) hr->ec,
+                TALER_TESTING_interpreter_get_current_label (gis->is));
+    TALER_TESTING_interpreter_fail (gis->is);
+    return;
+  }
+  switch (hr->http_status)
+  {
+  case MHD_HTTP_OK:
+    // FIXME: use gis->instance_reference here to
+    // check if the data returned matches that from the POST / PATCH
+    break;
+  default:
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                "Unhandled HTTP status.\n");
+  }
+  TALER_TESTING_interpreter_next (gis->is);
+}
+
+
+/**
+ * Run the "GET instance" CMD.
+ *
+ *
+ * @param cls closure.
+ * @param cmd command being run now.
+ * @param is interpreter state.
+ */
+static void
+get_instance_run (void *cls,
+                  const struct TALER_TESTING_Command *cmd,
+                  struct TALER_TESTING_Interpreter *is)
+{
+  struct GetInstanceState *gis = cls;
+
+  gis->is = is;
+  gis->igh = TALER_MERCHANT_instance_get (is->ctx,
+                                          gis->merchant_url,
+                                          gis->instance_id,
+                                          &get_instance_cb,
+                                          gis);
+  GNUNET_assert (NULL != gis->igh);
+}
+
+
+/**
+ * Free the state of a "GET instance" CMD, and possibly
+ * cancel a pending operation thereof.
+ *
+ * @param cls closure.
+ * @param cmd command being run.
+ */
+static void
+get_instance_cleanup (void *cls,
+                      const struct TALER_TESTING_Command *cmd)
+{
+  struct GetInstanceState *gis = cls;
+
+  if (NULL != gis->igh)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                "GET /instances/$ID operation did not complete\n");
+    TALER_MERCHANT_instance_get_cancel (gis->igh);
+  }
+  GNUNET_free (gis);
+}
+
+
+/**
+ * Define a "GET instance" CMD.
+ *
+ * @param label command label.
+ * @param merchant_url base URL of the merchant serving the
+ *        GET /instances/$ID request.
+ * @param instance_id the ID of the instance to query
+ * @param http_status expected HTTP response code.
+ * @param instance_reference reference to a "POST /instances" or "PATCH /instances/$ID" CMD
+ *        that will provide what we expect the backend to return to us
+ * @return the command.
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_merchant_get_instance (const char *label,
+                                         const char *merchant_url,
+                                         const char *instance_id,
+                                         unsigned int http_status,
+                                         const char *instance_reference)
+{
+  struct GetInstanceState *gis;
+
+  gis = GNUNET_new (struct GetInstanceState);
+  gis->merchant_url = merchant_url;
+  gis->instance_id = instance_id;
+  gis->http_status = http_status;
+  gis->instance_reference = instance_reference;
+  {
+    struct TALER_TESTING_Command cmd = {
+      .cls = gis,
+      .label = label,
+      .run = &get_instance_run,
+      .cleanup = &get_instance_cleanup
+    };
+
+    return cmd;
+  }
+}
+
+
+/* end of testing_api_cmd_get_instance.c */