[dpdk-dev] [PATCH v5 2/3] test/test_telemetry_data: add unit tests for data to JSON

[Ciara Power <ciara.power@intel.com>]

From: Louise Kilheeney <louise.kilheeney@intel.com>

This patch adds tests for verifying telemetry data structures are
converted to JSON as expected. Both flat and recursive data structures
are tested, for all possible value types.

Signed-off-by: Louise Kilheeney <louise.kilheeney@intel.com>
Signed-off-by: Ciara Power <ciara.power@intel.com>
---
 app/test/Makefile              |   1 +
 app/test/meson.build           |   5 +-
 app/test/test_telemetry_data.c | 359 +++++++++++++++++++++++++++++++++
 3 files changed, 363 insertions(+), 2 deletions(-)
 create mode 100644 app/test/test_telemetry_data.c

diff --git a/app/test/Makefile b/app/test/Makefile
index f4065271e..1cb64089c 100644
--- a/app/test/Makefile
+++ b/app/test/Makefile
@@ -145,6 +145,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_LPM) += test_lpm6.c
 SRCS-$(CONFIG_RTE_LIBRTE_LPM) += test_lpm6_perf.c
 
 SRCS-$(CONFIG_RTE_LIBRTE_TELEMETRY) += test_telemetry_json.c
+SRCS-$(CONFIG_RTE_LIBRTE_TELEMETRY) += test_telemetry_data.c
 
 SRCS-y += test_debug.c
 SRCS-y += test_errno.c
diff --git a/app/test/meson.build b/app/test/meson.build
index 786a21397..4a72fe5b6 100644
--- a/app/test/meson.build
+++ b/app/test/meson.build
@@ -170,6 +170,7 @@ test_deps = ['acl',
 	'ring',
 	'security',
 	'stack',
+	'telemetry',
 	'timer'
 ]
 
@@ -345,8 +346,8 @@ if dpdk_conf.has('RTE_LIBRTE_SKELETON_EVENTDEV_PMD')
 	test_deps += 'pmd_skeleton_event'
 endif
 if dpdk_conf.has('RTE_LIBRTE_TELEMETRY')
-	test_sources += 'test_telemetry_json.c'
-	fast_tests += [['telemetry_json_autotest', true]]
+	test_sources += ['test_telemetry_json.c', 'test_telemetry_data.c']
+	fast_tests += [['telemetry_json_autotest', true], ['telemetry_data_autotest', true]]
 endif
 
 # The following linkages of drivers are required because
diff --git a/app/test/test_telemetry_data.c b/app/test/test_telemetry_data.c
new file mode 100644
index 000000000..670af9134
--- /dev/null
+++ b/app/test/test_telemetry_data.c
@@ -0,0 +1,359 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2020 Intel Corporation
+ */
+
+#include <glob.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <limits.h>
+
+#include <rte_eal.h>
+#include <rte_common.h>
+#include <rte_telemetry.h>
+#include <rte_string_fns.h>
+
+#include "test.h"
+#include "telemetry_data.h"
+
+#define TELEMETRY_VERSION "v2"
+#define REQUEST_CMD "/test"
+#define BUF_SIZE 1024
+#define TEST_OUTPUT(exp) test_output(__func__, exp)
+
+static struct rte_tel_data response_data;
+static int sock;
+
+static int
+test_cb(const char *cmd __rte_unused, const char *params __rte_unused,
+		struct rte_tel_data *d)
+{
+	*d = response_data;
+	return 0;
+}
+
+static int
+test_output(const char *func_name, const char *expected)
+{
+	int bytes;
+	char buf[BUF_SIZE * 16];
+	if (write(sock, REQUEST_CMD, strlen(REQUEST_CMD)) < 0) {
+		printf("%s: Error with socket write - %s\n", __func__,
+				strerror(errno));
+		return -1;
+	}
+	bytes = read(sock, buf, sizeof(buf));
+	if (bytes < 0) {
+		printf("%s: Error with socket read - %s\n", __func__,
+				strerror(errno));
+		return -1;
+	}
+	buf[bytes] = '\0';
+	printf("%s: buf = '%s', expected = '%s'\n", func_name, buf, expected);
+	return strncmp(expected, buf, sizeof(buf));
+}
+
+static int
+test_dict_with_array_int_values(void)
+{
+	int i;
+
+	struct rte_tel_data *child_data = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data, RTE_TEL_INT_VAL);
+
+	struct rte_tel_data *child_data2 = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data2, RTE_TEL_INT_VAL);
+
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_dict(&response_data);
+
+	for (i = 0; i < 5; i++) {
+		rte_tel_data_add_array_int(child_data, i);
+		rte_tel_data_add_array_int(child_data2, i);
+	}
+
+	rte_tel_data_add_dict_container(&response_data, "dict_0",
+	 child_data, 0);
+	rte_tel_data_add_dict_container(&response_data, "dict_1",
+	 child_data2, 0);
+
+	return TEST_OUTPUT("{\"/test\":{\"dict_0\":[0,1,2,3,4],\"dict_1\":[0,1,2,3,4]}}");
+}
+
+static int
+test_array_with_array_int_values(void)
+{
+	int i;
+
+	struct rte_tel_data *child_data = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data, RTE_TEL_INT_VAL);
+
+	struct rte_tel_data *child_data2 = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data2, RTE_TEL_INT_VAL);
+
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_array(&response_data, RTE_TEL_CONTAINER);
+
+	for (i = 0; i < 5; i++) {
+		rte_tel_data_add_array_int(child_data, i);
+		rte_tel_data_add_array_int(child_data2, i);
+	}
+	rte_tel_data_add_array_container(&response_data, child_data, 0);
+	rte_tel_data_add_array_container(&response_data, child_data2, 0);
+
+	return TEST_OUTPUT("{\"/test\":[[0,1,2,3,4],[0,1,2,3,4]]}");
+}
+
+static int
+test_case_array_int(void)
+{
+	int i;
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_array(&response_data, RTE_TEL_INT_VAL);
+	for (i = 0; i < 5; i++)
+		rte_tel_data_add_array_int(&response_data, i);
+	return TEST_OUTPUT("{\"/test\":[0,1,2,3,4]}");
+}
+
+static int
+test_case_add_dict_int(void)
+{
+	int i = 0;
+	char name_of_value[8];
+
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_dict(&response_data);
+
+	for (i = 0; i < 5; i++) {
+		sprintf(name_of_value, "dict_%d", i);
+		rte_tel_data_add_dict_int(&response_data, name_of_value, i);
+	}
+
+	return TEST_OUTPUT("{\"/test\":{\"dict_0\":0,\"dict_1\":1,\"dict_2\":2,\"dict_3\":3,\"dict_4\":4}}");
+}
+
+static int
+test_case_array_string(void)
+{
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_array(&response_data, RTE_TEL_STRING_VAL);
+	rte_tel_data_add_array_string(&response_data, "aaaa");
+	rte_tel_data_add_array_string(&response_data, "bbbb");
+	rte_tel_data_add_array_string(&response_data, "cccc");
+	rte_tel_data_add_array_string(&response_data, "dddd");
+	rte_tel_data_add_array_string(&response_data, "eeee");
+
+	return TEST_OUTPUT("{\"/test\":[\"aaaa\",\"bbbb\",\"cccc\",\"dddd\",\"eeee\"]}");
+}
+
+static int
+test_case_add_dict_string(void)
+{
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_dict(&response_data);
+
+	rte_tel_data_add_dict_string(&response_data, "dict_0", "aaaa");
+	rte_tel_data_add_dict_string(&response_data, "dict_1", "bbbb");
+	rte_tel_data_add_dict_string(&response_data, "dict_2", "cccc");
+	rte_tel_data_add_dict_string(&response_data, "dict_3", "dddd");
+
+	return TEST_OUTPUT("{\"/test\":{\"dict_0\":\"aaaa\",\"dict_1\":\"bbbb\",\"dict_2\":\"cccc\",\"dict_3\":\"dddd\"}}");
+}
+
+
+static int
+test_dict_with_array_string_values(void)
+{
+	struct rte_tel_data *child_data = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data, RTE_TEL_STRING_VAL);
+
+	struct rte_tel_data *child_data2 = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data2, RTE_TEL_STRING_VAL);
+
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_dict(&response_data);
+
+	rte_tel_data_add_array_string(child_data, "aaaa");
+	rte_tel_data_add_array_string(child_data2, "bbbb");
+
+	rte_tel_data_add_dict_container(&response_data, "dict_0",
+	 child_data, 0);
+	rte_tel_data_add_dict_container(&response_data, "dict_1",
+	 child_data2, 0);
+
+	return TEST_OUTPUT("{\"/test\":{\"dict_0\":[\"aaaa\"],\"dict_1\":[\"bbbb\"]}}");
+}
+
+static int
+test_array_with_array_string_values(void)
+{
+	struct rte_tel_data *child_data = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data, RTE_TEL_STRING_VAL);
+
+	struct rte_tel_data *child_data2 = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data2, RTE_TEL_STRING_VAL);
+
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_array(&response_data, RTE_TEL_CONTAINER);
+
+	rte_tel_data_add_array_string(child_data, "aaaa");
+	rte_tel_data_add_array_string(child_data2, "bbbb");
+
+	rte_tel_data_add_array_container(&response_data, child_data, 0);
+	rte_tel_data_add_array_container(&response_data, child_data2, 0);
+
+	return TEST_OUTPUT("{\"/test\":[[\"aaaa\"],[\"bbbb\"]]}");
+}
+
+static int
+test_case_array_u64(void)
+{
+	int i;
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_array(&response_data, RTE_TEL_U64_VAL);
+	for (i = 0; i < 5; i++)
+		rte_tel_data_add_array_u64(&response_data, i);
+	return TEST_OUTPUT("{\"/test\":[0,1,2,3,4]}");
+}
+
+static int
+test_case_add_dict_u64(void)
+{
+	int i = 0;
+	char name_of_value[8];
+
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_dict(&response_data);
+
+	for (i = 0; i < 5; i++) {
+		sprintf(name_of_value, "dict_%d", i);
+		rte_tel_data_add_dict_u64(&response_data, name_of_value, i);
+	}
+	return TEST_OUTPUT("{\"/test\":{\"dict_0\":0,\"dict_1\":1,\"dict_2\":2,\"dict_3\":3,\"dict_4\":4}}");
+}
+
+static int
+test_dict_with_array_u64_values(void)
+{
+	int i;
+
+	struct rte_tel_data *child_data = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data, RTE_TEL_U64_VAL);
+
+	struct rte_tel_data *child_data2 = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data2, RTE_TEL_U64_VAL);
+
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_dict(&response_data);
+
+	for (i = 0; i < 10; i++) {
+		rte_tel_data_add_array_u64(child_data, i);
+		rte_tel_data_add_array_u64(child_data2, i);
+	}
+
+	rte_tel_data_add_dict_container(&response_data, "dict_0",
+	 child_data, 0);
+	rte_tel_data_add_dict_container(&response_data, "dict_1",
+	 child_data2, 0);
+
+	return TEST_OUTPUT("{\"/test\":{\"dict_0\":[0,1,2,3,4,5,6,7,8,9],\"dict_1\":[0,1,2,3,4,5,6,7,8,9]}}");
+}
+
+static int
+test_array_with_array_u64_values(void)
+{
+	int i;
+
+	struct rte_tel_data *child_data = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data, RTE_TEL_U64_VAL);
+
+	struct rte_tel_data *child_data2 = rte_tel_data_alloc();
+	rte_tel_data_start_array(child_data2, RTE_TEL_U64_VAL);
+
+	memset(&response_data, 0, sizeof(response_data));
+	rte_tel_data_start_array(&response_data, RTE_TEL_CONTAINER);
+
+	for (i = 0; i < 5; i++) {
+		rte_tel_data_add_array_u64(child_data, i);
+		rte_tel_data_add_array_u64(child_data2, i);
+	}
+	rte_tel_data_add_array_container(&response_data, child_data, 0);
+	rte_tel_data_add_array_container(&response_data, child_data2, 0);
+
+	return TEST_OUTPUT("{\"/test\":[[0,1,2,3,4],[0,1,2,3,4]]}");
+}
+
+static int
+connect_to_socket(void)
+{
+	char file_pattern[PATH_MAX];
+	char buf[BUF_SIZE];
+	glob_t globbuf;
+	int sock, bytes;
+	struct sockaddr_un telem_addr;
+
+	snprintf(file_pattern, sizeof(file_pattern),
+			"%s/dpdk_telemetry.%s",	rte_eal_get_runtime_dir(),
+			TELEMETRY_VERSION);
+	if (glob(file_pattern, 0, NULL, &globbuf) != 0) {
+		printf("\n%s: Error finding socket file path: %s\n", __func__,
+				strerror(errno));
+		globfree(&globbuf);
+		return -1;
+	}
+
+	sock = socket(AF_UNIX, SOCK_SEQPACKET, 0);
+	if (sock < 0) {
+		printf("\n%s: Error creating socket: %s\n", __func__,
+				strerror(errno));
+		return -1;
+	}
+	telem_addr.sun_family = AF_UNIX;
+	strlcpy(telem_addr.sun_path, globbuf.gl_pathv[0],
+			sizeof(telem_addr.sun_path));
+	if (connect(sock, &telem_addr, sizeof(telem_addr)) < 0)
+		printf("\n%s: Error connecting to socket: %s\n", __func__,
+				strerror(errno));
+
+	bytes = read(sock, buf, sizeof(buf));
+	if (bytes < 0) {
+		printf("%s: Error with socket read - %s\n", __func__,
+				strerror(errno));
+		return -1;
+	}
+	buf[bytes] = '\0';
+	printf("\n%s: %s\n", __func__, buf);
+	globfree(&globbuf);
+	return sock;
+}
+
+static int
+test_telemetry_data(void)
+{
+	sock = connect_to_socket();
+	if (sock <= 0)
+		return -1;
+
+	rte_telemetry_register_cmd(REQUEST_CMD, test_cb, "Test");
+	if (test_case_array_string() != 0
+	|| test_case_array_int() != 0
+	|| test_case_array_u64() != 0
+	|| test_case_add_dict_int() != 0
+	|| test_case_add_dict_u64() != 0
+	|| test_case_add_dict_string() != 0
+	||  test_dict_with_array_int_values() != 0
+	|| test_dict_with_array_u64_values() != 0
+	|| test_dict_with_array_string_values() != 0
+	|| test_array_with_array_int_values() != 0
+	|| test_array_with_array_u64_values() != 0
+	|| test_array_with_array_string_values() != 0) {
+		close(sock);
+		return -1;
+	}
+
+	close(sock);
+	return 0;
+}
+
+REGISTER_TEST_COMMAND(telemetry_data_autotest, test_telemetry_data);
-- 
2.17.1