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authorFlorian Dold <florian.dold@gmail.com>2020-01-19 16:06:29 +0100
committerFlorian Dold <florian.dold@gmail.com>2020-01-19 16:06:29 +0100
commit9f522baadcf3b5288d35216962a91b5aeb688820 (patch)
treeba6406aaeafee9739b850c220b267d77e4c1c909 /src/testing
parent03bcd50d9ad7147683ef9e8631af4efcecca1079 (diff)
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exchange-9f522baadcf3b5288d35216962a91b5aeb688820.tar.bz2
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add missing files and adjust .gitignore rules for testing move
Diffstat (limited to 'src/testing')
-rw-r--r--src/testing/testing_api_cmd_twister_exec_client.c1023
-rw-r--r--src/testing/testing_api_twister_helpers.c157
2 files changed, 1180 insertions, 0 deletions
diff --git a/src/testing/testing_api_cmd_twister_exec_client.c b/src/testing/testing_api_cmd_twister_exec_client.c
new file mode 100644
index 00000000..6350d1d5
--- /dev/null
+++ b/src/testing/testing_api_cmd_twister_exec_client.c
@@ -0,0 +1,1023 @@
+/*
+ This file is part of TALER
+ (C) 2018 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 include/testing_api_cmd_exec_client.h
+ * @brief test commands aimed to call the CLI twister client
+ * to drive its behaviour.
+ * @author Christian Grothoff <christian@grothoff.org>
+ * @author Marcello Stanisci
+ */
+
+#include "platform.h"
+#include <taler/taler_testing_lib.h>
+#include "taler_twister_testing_lib.h"
+
+
+/**
+ * State for a "modify object" CMD.
+ */
+struct ModifyObjectState
+{
+ /**
+ * Process handle for the twister CLI client.
+ */
+ struct GNUNET_OS_Process *proc;
+
+ /**
+ * Object-like notation to the object to delete.
+ */
+ const char *path;
+
+
+ /**
+ * Value to substitute to the original one.
+ */
+ const char *value;
+
+ /**
+ * Config file name to pass to the CLI client.
+ */
+ const char *config_filename;
+};
+
+
+/**
+ * State for a "flip object" CMD.
+ */
+struct FlipObjectState
+{
+ /**
+ * Process handle for the twister CLI client.
+ */
+ struct GNUNET_OS_Process *proc;
+
+ /**
+ * Object-like notation to the string-object to flip.
+ */
+ const char *path;
+
+ /**
+ * Config file name to pass to the CLI client.
+ */
+ const char *config_filename;
+};
+
+
+/**
+ * State for a "delete object" CMD.
+ */
+struct DeleteObjectState
+{
+ /**
+ * Process handle for the twister CLI client.
+ */
+ struct GNUNET_OS_Process *proc;
+
+ /**
+ * Object-like notation to the object to delete.
+ */
+ const char *path;
+
+ /**
+ * Config file name to pass to the CLI client.
+ */
+ const char *config_filename;
+};
+
+
+/**
+ * State for a "malform request" CMD.
+ */
+struct MalformRequestState
+{
+ /**
+ * Process handle for the twister CLI client.
+ */
+ struct GNUNET_OS_Process *proc;
+
+ /**
+ * Config file name to pass to the CLI client.
+ */
+ const char *config_filename;
+};
+
+
+/**
+ * State for a "malform response" CMD.
+ */
+struct MalformResponseState
+{
+ /**
+ * Process handle for the twister CLI client.
+ */
+ struct GNUNET_OS_Process *proc;
+
+ /**
+ * Config file name to pass to the CLI client.
+ */
+ const char *config_filename;
+};
+
+
+/**
+ * State for a "hack response code" CMD.
+ */
+struct HackResponseCodeState
+{
+ /**
+ * Process handle for the twister CLI client.
+ */
+ struct GNUNET_OS_Process *proc;
+
+ /**
+ * HTTP status code to substitute to the original one.
+ */
+ unsigned int http_status;
+
+ /**
+ * Config file name to pass to the CLI client.
+ */
+ const char *config_filename;
+};
+
+
+/**
+ * Free the state from a "hack response code" CMD, and
+ * possibly kill its process if it did not terminate yet.
+ *
+ * @param cls closure.
+ * @param cmd the command being cleaned up.
+ */
+static void
+hack_response_code_cleanup
+ (void *cls,
+ const struct TALER_TESTING_Command *cmd)
+{
+ struct HackResponseCodeState *hrcs = cls;
+
+ if (NULL != hrcs->proc)
+ {
+ GNUNET_break (0 == GNUNET_OS_process_kill (hrcs->proc,
+ SIGKILL));
+ GNUNET_OS_process_wait (hrcs->proc);
+ GNUNET_OS_process_destroy (hrcs->proc);
+ hrcs->proc = NULL;
+ }
+ GNUNET_free (hrcs);
+}
+
+
+/**
+ * Offer data internal to a "hack response code" CMD,
+ * to other commands.
+ *
+ * @param cls closure
+ * @param ret[out] result (could be anything)
+ * @param trait name of the trait
+ * @param index index number of the object to offer.
+ * @return #GNUNET_OK on success
+ */
+static int
+hack_response_code_traits (void *cls,
+ const void **ret,
+ const char *trait,
+ unsigned int index)
+{
+
+ struct HackResponseCodeState *hrcs = cls;
+ struct TALER_TESTING_Trait traits[] = {
+ TALER_TESTING_make_trait_process (0, &hrcs->proc),
+ TALER_TESTING_trait_end ()
+ };
+
+ return TALER_TESTING_get_trait (traits,
+ ret,
+ trait,
+ index);
+}
+
+
+/**
+ * Run a "hack response code" CMD.
+ *
+ * @param cls closure.
+ * @param cmd the command being run.
+ * @param is the interpreter state.
+ */
+static void
+hack_response_code_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is)
+{
+ struct HackResponseCodeState *hrcs = cls;
+ char *http_status;
+
+ GNUNET_asprintf (&http_status, "%u",
+ hrcs->http_status);
+
+ hrcs->proc = GNUNET_OS_start_process
+ (GNUNET_NO,
+ GNUNET_OS_INHERIT_STD_ALL,
+ NULL, NULL, NULL,
+ "taler-twister",
+ "taler-twister",
+ "-c", hrcs->config_filename,
+ "--responsecode", http_status,
+ NULL);
+ if (NULL == hrcs->proc)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ TALER_TESTING_wait_for_sigchld (is);
+ GNUNET_free (http_status);
+}
+
+
+/**
+ * Define a "hack response code" CMD. This causes the next
+ * response code (from the service proxied by the twister) to
+ * be substituted with @a http_status.
+ *
+ * @param label command label
+ * @param config_filename configuration filename.
+ * @param http_status new response code to use
+ * @return the command
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_hack_response_code (const char *label,
+ const char *config_filename,
+ unsigned int http_status)
+{
+ struct HackResponseCodeState *hrcs;
+
+ hrcs = GNUNET_new (struct HackResponseCodeState);
+ hrcs->http_status = http_status;
+ hrcs->config_filename = config_filename;
+
+ struct TALER_TESTING_Command cmd = {
+ .label = label,
+ .run = &hack_response_code_run,
+ .cleanup = &hack_response_code_cleanup,
+ .traits = &hack_response_code_traits,
+ .cls = hrcs
+ };
+
+ return cmd;
+}
+
+
+/**
+ * Free the state from a "delete object" CMD, and
+ * possibly kill its process if it did not terminate yet.
+ *
+ * @param cls closure.
+ * @param cmd the command being cleaned up.
+ */
+static void
+delete_object_cleanup
+ (void *cls,
+ const struct TALER_TESTING_Command *cmd)
+{
+ struct DeleteObjectState *dos = cls;
+
+ if (NULL != dos->proc)
+ {
+ GNUNET_break (0 == GNUNET_OS_process_kill (dos->proc,
+ SIGKILL));
+ GNUNET_OS_process_wait (dos->proc);
+ GNUNET_OS_process_destroy (dos->proc);
+ dos->proc = NULL;
+ }
+ GNUNET_free (dos);
+}
+
+
+/**
+ * Offer data internal to a "delete object" CMD,
+ * to other commands.
+ *
+ * @param cls closure
+ * @param ret[out] result (could be anything)
+ * @param trait name of the trait
+ * @param index index number of the object to offer.
+ * @return #GNUNET_OK on success
+ */
+static int
+delete_object_traits (void *cls,
+ const void **ret,
+ const char *trait,
+ unsigned int index)
+{
+
+ struct DeleteObjectState *dos = cls;
+ struct TALER_TESTING_Trait traits[] = {
+ TALER_TESTING_make_trait_process (0, &dos->proc),
+ TALER_TESTING_trait_end ()
+ };
+
+ return TALER_TESTING_get_trait (traits,
+ ret,
+ trait,
+ index);
+}
+
+
+/**
+ * Run a "delete object" CMD.
+ *
+ * @param cls closure.
+ * @param cmd the command being run.
+ * @param is the interpreter state.
+ */
+static void
+delete_object_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is)
+{
+ struct DeleteObjectState *dos = cls;
+
+ dos->proc = GNUNET_OS_start_process (GNUNET_NO,
+ GNUNET_OS_INHERIT_STD_ALL,
+ NULL, NULL, NULL,
+ "taler-twister",
+ "taler-twister",
+ "-c", dos->config_filename,
+ "--deleteobject", dos->path,
+ NULL);
+ if (NULL == dos->proc)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ TALER_TESTING_wait_for_sigchld (is);
+}
+
+
+/**
+ * Free the state from a "modify object" CMD, and
+ * possibly kill its process if it did not terminate yet.
+ *
+ * @param cls closure.
+ * @param cmd the command being cleaned up.
+ */
+static void
+modify_object_cleanup
+ (void *cls,
+ const struct TALER_TESTING_Command *cmd)
+{
+ struct ModifyObjectState *mos = cls;
+
+ if (NULL != mos->proc)
+ {
+ GNUNET_break (0 == GNUNET_OS_process_kill (mos->proc,
+ SIGKILL));
+ GNUNET_OS_process_wait (mos->proc);
+ GNUNET_OS_process_destroy (mos->proc);
+ mos->proc = NULL;
+ }
+ GNUNET_free (mos);
+}
+
+
+/**
+ * Offer data internal to a "modify object" CMD,
+ * to other commands.
+ *
+ * @param cls closure
+ * @param ret[out] result (could be anything)
+ * @param trait name of the trait
+ * @param index index number of the object to offer.
+ * @return #GNUNET_OK on success
+ */
+static int
+modify_object_traits (void *cls,
+ const void **ret,
+ const char *trait,
+ unsigned int index)
+{
+
+ struct ModifyObjectState *mos = cls;
+ struct TALER_TESTING_Trait traits[] = {
+ TALER_TESTING_make_trait_process (0, &mos->proc),
+ TALER_TESTING_trait_end ()
+ };
+
+ return TALER_TESTING_get_trait (traits,
+ ret,
+ trait,
+ index);
+}
+
+
+/**
+ * Run a "modify object" CMD. The "download fashion" of it.
+ *
+ * @param cls closure.
+ * @param cmd the command being run.
+ * @param is the interpreter state.
+ */
+static void
+modify_object_dl_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is)
+{
+ struct ModifyObjectState *mos = cls;
+
+ mos->proc = GNUNET_OS_start_process (GNUNET_NO,
+ GNUNET_OS_INHERIT_STD_ALL,
+ NULL, NULL, NULL,
+ "taler-twister",
+ "taler-twister",
+ "-c", mos->config_filename,
+ "-m", mos->path,
+ "--value", mos->value,
+ NULL);
+ if (NULL == mos->proc)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ TALER_TESTING_wait_for_sigchld (is);
+}
+
+
+/**
+ * Run a "modify object" CMD, the "upload fashion" of it.
+ *
+ * @param cls closure.
+ * @param cmd the command being run.
+ * @param is the interpreter state.
+ */
+static void
+modify_object_ul_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is)
+{
+ struct ModifyObjectState *mos = cls;
+
+ mos->proc = GNUNET_OS_start_process (GNUNET_NO,
+ GNUNET_OS_INHERIT_STD_ALL,
+ NULL, NULL, NULL,
+ "taler-twister",
+ "taler-twister",
+ "-c", mos->config_filename,
+ "-X", mos->path,
+ "--value", mos->value,
+ NULL);
+ if (NULL == mos->proc)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ TALER_TESTING_wait_for_sigchld (is);
+}
+
+
+/**
+ * Create a "delete object" CMD. This command deletes
+ * the JSON object pointed by @a path.
+ *
+ * @param label command label
+ * @param config_filename configuration filename.
+ * @param path object-like path notation to point the object
+ * to delete.
+ * @return the command
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_delete_object (const char *label,
+ const char *config_filename,
+ const char *path)
+{
+ struct DeleteObjectState *dos;
+
+ dos = GNUNET_new (struct DeleteObjectState);
+ dos->path = path;
+ dos->config_filename = config_filename;
+
+ struct TALER_TESTING_Command cmd = {
+ .label = label,
+ .run = &delete_object_run,
+ .cleanup = &delete_object_cleanup,
+ .traits = &delete_object_traits,
+ .cls = dos
+ };
+
+ return cmd;
+}
+
+
+/**
+ * Free the state from a "flip object" CMD, and
+ * possibly kill its process if it did not terminate yet.
+ *
+ * @param cls closure.
+ * @param cmd the command being cleaned up.
+ */
+static void
+flip_object_cleanup
+ (void *cls,
+ const struct TALER_TESTING_Command *cmd)
+{
+ struct FlipObjectState *fos = cls;
+
+ if (NULL != fos->proc)
+ {
+ GNUNET_break (0 == GNUNET_OS_process_kill (fos->proc,
+ SIGKILL));
+ GNUNET_OS_process_wait (fos->proc);
+ GNUNET_OS_process_destroy (fos->proc);
+ fos->proc = NULL;
+ }
+ GNUNET_free (fos);
+}
+
+
+/**
+ * Offer data internal to a "flip object" CMD,
+ * to other commands.
+ *
+ * @param cls closure
+ * @param ret[out] result (could be anything)
+ * @param trait name of the trait
+ * @param index index number of the object to offer.
+ * @return #GNUNET_OK on success
+ */
+static int
+flip_object_traits (void *cls,
+ const void **ret,
+ const char *trait,
+ unsigned int index)
+{
+
+ struct FlipObjectState *fos = cls;
+ struct TALER_TESTING_Trait traits[] = {
+ TALER_TESTING_make_trait_process (0, &fos->proc),
+ TALER_TESTING_trait_end ()
+ };
+
+ return TALER_TESTING_get_trait (traits,
+ ret,
+ trait,
+ index);
+}
+
+
+/**
+ * Run a "flip object" CMD, the upload fashion of it.
+ *
+ * @param cls closure.
+ * @param cmd the command being run.
+ * @param is the interpreter state.
+ */
+static void
+flip_upload_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is)
+{
+ struct FlipObjectState *fos = cls;
+
+ fos->proc = GNUNET_OS_start_process (GNUNET_NO,
+ GNUNET_OS_INHERIT_STD_ALL,
+ NULL, NULL, NULL,
+ "taler-twister",
+ "taler-twister",
+ "-c", fos->config_filename,
+ "--flip-ul", fos->path,
+ NULL);
+ if (NULL == fos->proc)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ TALER_TESTING_wait_for_sigchld (is);
+}
+
+
+/**
+ * Run a "flip object" CMD, the download fashion of it.
+ *
+ * @param cls closure.
+ * @param cmd the command being run.
+ * @param is the interpreter state.
+ */
+static void
+flip_download_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is)
+{
+ struct FlipObjectState *fos = cls;
+
+ fos->proc = GNUNET_OS_start_process (GNUNET_NO,
+ GNUNET_OS_INHERIT_STD_ALL,
+ NULL, NULL, NULL,
+ "taler-twister",
+ "taler-twister",
+ "-c", fos->config_filename,
+ "--flip-dl", fos->path,
+ NULL);
+ if (NULL == fos->proc)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ TALER_TESTING_wait_for_sigchld (is);
+}
+
+
+/**
+ * Define a "flip object" command, for objects to upload.
+ *
+ * @param label command label
+ * @param config_filename configuration filename.
+ * @param path object-like path notation to point the object
+ * to flip.
+ * @return the command
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_flip_upload (const char *label,
+ const char *config_filename,
+ const char *path)
+{
+ struct FlipObjectState *dos;
+
+ dos = GNUNET_new (struct FlipObjectState);
+ dos->path = path;
+ dos->config_filename = config_filename;
+
+ struct TALER_TESTING_Command cmd = {
+ .label = label,
+ .run = &flip_upload_run,
+ .cleanup = &flip_object_cleanup,
+ .traits = &flip_object_traits,
+ .cls = dos
+ };
+
+ return cmd;
+}
+
+
+/**
+ * Define a "flip object" command, for objects to download.
+ *
+ * @param label command label
+ * @param config_filename configuration filename.
+ * @param path object-like path notation to point the object
+ * to flip.
+ * @return the command
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_flip_download (const char *label,
+ const char *config_filename,
+ const char *path)
+{
+ struct FlipObjectState *dos;
+
+ dos = GNUNET_new (struct FlipObjectState);
+ dos->path = path;
+ dos->config_filename = config_filename;
+
+ struct TALER_TESTING_Command cmd = {
+ .label = label,
+ .run = &flip_download_run,
+ .cleanup = &flip_object_cleanup,
+ .traits = &flip_object_traits,
+ .cls = dos
+ };
+
+ return cmd;
+}
+
+
+/**
+ * Free the state from a "malform request" CMD, and
+ * possibly kill its process if it did not terminate yet.
+ *
+ * @param cls closure.
+ * @param cmd the command being cleaned up.
+ */
+static void
+malform_request_cleanup (void *cls,
+ const struct TALER_TESTING_Command *cmd)
+{
+ struct MalformRequestState *mrs = cls;
+
+ if (NULL != mrs->proc)
+ {
+ GNUNET_break (0 == GNUNET_OS_process_kill (mrs->proc,
+ SIGKILL));
+ GNUNET_OS_process_wait (mrs->proc);
+ GNUNET_OS_process_destroy (mrs->proc);
+ mrs->proc = NULL;
+ }
+ GNUNET_free (mrs);
+}
+
+
+/**
+ * Offer data internal to a "malform request" CMD,
+ * to other commands.
+ *
+ * @param cls closure
+ * @param ret[out] result (could be anything)
+ * @param trait name of the trait
+ * @param index index number of the object to offer.
+ * @return #GNUNET_OK on success
+ */
+static int
+malform_request_traits (void *cls,
+ const void **ret,
+ const char *trait,
+ unsigned int index)
+{
+ struct MalformRequestState *mrs = cls;
+ struct TALER_TESTING_Trait traits[] = {
+ TALER_TESTING_make_trait_process (0, &mrs->proc),
+ TALER_TESTING_trait_end ()
+ };
+
+ return TALER_TESTING_get_trait (traits,
+ ret,
+ trait,
+ index);
+}
+
+
+/**
+ * Run a "malform request" CMD.
+ *
+ * @param cls closure.
+ * @param cmd the command being run.
+ * @param is the interpreter state.
+ */
+static void
+malform_request_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is)
+{
+ struct MalformRequestState *mrs = cls;
+
+ mrs->proc = GNUNET_OS_start_process (GNUNET_NO,
+ GNUNET_OS_INHERIT_STD_ALL,
+ NULL, NULL, NULL,
+ "taler-twister",
+ "taler-twister",
+ "-c", mrs->config_filename,
+ "--malformupload",
+ NULL);
+ if (NULL == mrs->proc)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ TALER_TESTING_wait_for_sigchld (is);
+}
+
+
+/**
+ * Free the state from a "malform response" CMD, and
+ * possibly kill its process if it did not terminate yet.
+ *
+ * @param cls closure.
+ * @param cmd the command being cleaned up.
+ */
+static void
+malform_response_cleanup
+ (void *cls,
+ const struct TALER_TESTING_Command *cmd)
+{
+ struct MalformResponseState *mrs = cls;
+
+ if (NULL != mrs->proc)
+ {
+ GNUNET_break (0 == GNUNET_OS_process_kill (mrs->proc,
+ SIGKILL));
+ GNUNET_OS_process_wait (mrs->proc);
+ GNUNET_OS_process_destroy (mrs->proc);
+ mrs->proc = NULL;
+ }
+ GNUNET_free (mrs);
+}
+
+
+/**
+ * Offer data internal to a "malform response" CMD,
+ * to other commands.
+ *
+ * @param cls closure
+ * @param ret[out] result (could be anything)
+ * @param trait name of the trait
+ * @param index index number of the object to offer.
+ * @return #GNUNET_OK on success
+ */
+static int
+malform_response_traits (void *cls,
+ const void **ret,
+ const char *trait,
+ unsigned int index)
+{
+ struct MalformResponseState *mrs = cls;
+ struct TALER_TESTING_Trait traits[] = {
+ TALER_TESTING_make_trait_process (0, &mrs->proc),
+ TALER_TESTING_trait_end ()
+ };
+
+ return TALER_TESTING_get_trait (traits,
+ ret,
+ trait,
+ index);
+}
+
+
+/**
+ * Run a "malform response" CMD.
+ *
+ * @param cls closure.
+ * @param cmd the command being run.
+ * @param is the interpreter state.
+ */
+static void
+malform_response_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is)
+{
+ struct MalformResponseState *mrs = cls;
+
+ mrs->proc = GNUNET_OS_start_process (GNUNET_NO,
+ GNUNET_OS_INHERIT_STD_ALL,
+ NULL, NULL, NULL,
+ "taler-twister",
+ "taler-twister",
+ "-c", mrs->config_filename,
+ "--malform",
+ NULL);
+ if (NULL == mrs->proc)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ TALER_TESTING_wait_for_sigchld (is);
+}
+
+
+/**
+ * Create a "malform request" CMD. This command makes the
+ * next request randomly malformed (by truncating it).
+ *
+ * @param label command label
+ * @param config_filename configuration filename.
+ * @return the command
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_malform_request (const char *label,
+ const char *config_filename)
+{
+ struct MalformRequestState *mrs;
+
+ mrs = GNUNET_new (struct MalformRequestState);
+ mrs->config_filename = config_filename;
+
+ struct TALER_TESTING_Command cmd = {
+ .label = label,
+ .run = &malform_request_run,
+ .cleanup = &malform_request_cleanup,
+ .traits = &malform_request_traits,
+ .cls = mrs
+ };
+
+ return cmd;
+}
+
+
+/**
+ * Create a "malform response" CMD. This command makes
+ * the next response randomly malformed (by truncating it).
+ *
+ * @param label command label
+ * @param config_filename configuration filename.
+ *
+ * @return the command
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_malform_response (const char *label,
+ const char *config_filename)
+{
+ struct MalformResponseState *mrs;
+
+ mrs = GNUNET_new (struct MalformResponseState);
+ mrs->config_filename = config_filename;
+
+ struct TALER_TESTING_Command cmd = {
+ .label = label,
+ .run = &malform_response_run,
+ .cleanup = &malform_response_cleanup,
+ .traits = &malform_response_traits,
+ .cls = mrs
+ };
+
+ return cmd;
+
+}
+
+
+/**
+ * Create a "modify object" CMD. This command instructs
+ * the twister to modify the next object that is downloaded
+ * from the proxied service.
+ *
+ * @param label command label
+ * @param config_filename configuration filename.
+ * @param path object-like path notation to point the object
+ * to modify.
+ * @param value value to put as the object's.
+ *
+ * @return the command
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_modify_object_dl (const char *label,
+ const char *config_filename,
+ const char *path,
+ const char *value)
+{
+ struct ModifyObjectState *mos;
+
+ mos = GNUNET_new (struct ModifyObjectState);
+ mos->path = path;
+ mos->value = value;
+ mos->config_filename = config_filename;
+
+ struct TALER_TESTING_Command cmd = {
+ .label = label,
+ .run = &modify_object_dl_run,
+ .cleanup = &modify_object_cleanup,
+ .traits = &modify_object_traits,
+ .cls = mos
+ };
+
+ return cmd;
+}
+
+
+/**
+ * Create a "modify object" CMD. This command instructs
+ * the twister to modify the next object that will be uploaded
+ * to the proxied service.
+ *
+ * @param label command label
+ * @param config_filename configuration filename.
+ * @param path object-like path notation pointing the object
+ * to modify.
+ * @param value value to put as the object's.
+ * @return the command
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_modify_object_ul (const char *label,
+ const char *config_filename,
+ const char *path,
+ const char *value)
+{
+ struct ModifyObjectState *mos;
+
+ mos = GNUNET_new (struct ModifyObjectState);
+ mos->path = path;
+ mos->value = value;
+ mos->config_filename = config_filename;
+
+ struct TALER_TESTING_Command cmd = {
+ .label = label,
+ .run = &modify_object_ul_run,
+ .cleanup = &modify_object_cleanup,
+ .traits = &modify_object_traits,
+ .cls = mos
+ };
+
+ return cmd;
+}
+
+
+/* end of testing_api_cmd_exec_client.c */
diff --git a/src/testing/testing_api_twister_helpers.c b/src/testing/testing_api_twister_helpers.c
new file mode 100644
index 00000000..6fab02c3
--- /dev/null
+++ b/src/testing/testing_api_twister_helpers.c
@@ -0,0 +1,157 @@
+/*
+ This file is part of TALER
+ Copyright (C) 2014-2018 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 twister/testing_api_helpers.c
+ * @brief helper functions for test library.
+ * @author Christian Grothoff
+ * @author Marcello Stanisci
+ */
+
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_twister_testing_lib.h"
+
+/**
+ * Prepare twister for execution; mainly checks whether the
+ * HTTP port is available and construct the base URL based on it.
+ *
+ * @param config_filename configuration file name.
+ * @return twister base URL, NULL upon errors.
+ */
+char *
+TALER_TWISTER_prepare_twister (const char *config_filename)
+{
+ struct GNUNET_CONFIGURATION_Handle *cfg;
+ unsigned long long port;
+ char *base_url;
+
+ cfg = GNUNET_CONFIGURATION_create ();
+
+ if (GNUNET_OK != GNUNET_CONFIGURATION_load
+ (cfg, config_filename))
+ TWISTER_FAIL ();
+
+ if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number
+ (cfg, "twister",
+ "HTTP_PORT", &port))
+ {
+ GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+ "twister",
+ "HTTP_PORT");
+ GNUNET_CONFIGURATION_destroy (cfg);
+ TWISTER_FAIL ();
+ }
+
+ GNUNET_CONFIGURATION_destroy (cfg);
+
+ if (GNUNET_OK != GNUNET_NETWORK_test_port_free
+ (IPPROTO_TCP, (uint16_t) port))
+ {
+ fprintf (stderr,
+ "Required port %llu not available, skipping.\n",
+ port);
+ TWISTER_FAIL ();
+ }
+
+ GNUNET_assert (0 < GNUNET_asprintf
+ (&base_url,
+ "http://localhost:%llu/",
+ port));
+
+ return base_url;
+}
+
+
+/**
+ * Run the twister service.
+ *
+ * @param config_filename configuration file name.
+ * @return twister process handle, NULL upon errors.
+ */
+struct GNUNET_OS_Process *
+TALER_TWISTER_run_twister (const char *config_filename)
+{
+ struct GNUNET_OS_Process *proc;
+ struct GNUNET_OS_Process *client_proc;
+ unsigned long code;
+ enum GNUNET_OS_ProcessStatusType type;
+
+ proc = GNUNET_OS_start_process (GNUNET_NO,
+ GNUNET_OS_INHERIT_STD_ALL,
+ NULL, NULL, NULL,
+ "taler-twister-service",
+ "taler-twister-service",
+ "-c", config_filename,
+ NULL);
+ if (NULL == proc)
+ TWISTER_FAIL ();
+
+ client_proc = GNUNET_OS_start_process (GNUNET_NO,
+ GNUNET_OS_INHERIT_STD_ALL,
+ NULL, NULL, NULL,
+ "taler-twister",
+ "taler-twister",
+ "-c", config_filename,
+ "-a", NULL);
+ if (NULL == client_proc)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Could not start the taler-twister client\n");
+ GNUNET_OS_process_kill (proc, SIGTERM);
+ GNUNET_OS_process_wait (proc);
+ GNUNET_OS_process_destroy (proc);
+ TWISTER_FAIL ();
+ }
+
+
+ if (GNUNET_SYSERR == GNUNET_OS_process_wait_status
+ (client_proc, &type, &code))
+ {
+ GNUNET_OS_process_destroy (client_proc);
+ GNUNET_OS_process_kill (proc, SIGTERM);
+ GNUNET_OS_process_wait (proc);
+ GNUNET_OS_process_destroy (proc);
+ TWISTER_FAIL ();
+ }
+ if ( (type == GNUNET_OS_PROCESS_EXITED) &&
+ (0 != code) )
+ {
+ fprintf (stderr, "Failed to check twister works.\n");
+ GNUNET_OS_process_destroy (client_proc);
+ GNUNET_OS_process_kill (proc, SIGTERM);
+ GNUNET_OS_process_wait (proc);
+ GNUNET_OS_process_destroy (proc);
+ TWISTER_FAIL ();
+ }
+ if ( (type != GNUNET_OS_PROCESS_EXITED) ||
+ (0 != code) )
+ {
+ fprintf (stderr, "Unexpected error running"
+ " `taler-twister'!\n");
+ GNUNET_OS_process_destroy (client_proc);
+ GNUNET_OS_process_kill (proc, SIGTERM);
+ GNUNET_OS_process_wait (proc);
+ GNUNET_OS_process_destroy (proc);
+ TWISTER_FAIL ();
+ }
+ GNUNET_OS_process_destroy (client_proc);
+
+ return proc;
+}