edge: Add test for GprsCodingScheme

This test checks constructors, predicates, and operators of the
GprsCodingScheme class.

Sponsored-by: On-Waves ehf

4 files changed, 240 insertions, 2 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 413599bb..2a3415e0 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,7 +1,7 @@
 AM_CPPFLAGS = $(STD_DEFINES_AND_INCLUDES) $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGB_CFLAGS) $(LIBOSMOGSM_CFLAGS) -I$(top_srcdir)/src/
 AM_LDFLAGS = -lrt
 
-check_PROGRAMS = rlcmac/RLCMACTest alloc/AllocTest tbf/TbfTest types/TypesTest ms/MsTest llist/LListTest llc/LlcTest codel/codel_test
+check_PROGRAMS = rlcmac/RLCMACTest alloc/AllocTest tbf/TbfTest types/TypesTest ms/MsTest llist/LListTest llc/LlcTest codel/codel_test edge/EdgeTest
 noinst_PROGRAMS = emu/pcu_emu
 
 rlcmac_RLCMACTest_SOURCES = rlcmac/RLCMACTest.cpp
@@ -26,6 +26,14 @@ tbf_TbfTest_LDADD = \
 	$(LIBOSMOCORE_LIBS) \
 	$(COMMON_LA)
 
+edge_EdgeTest_SOURCES = edge/EdgeTest.cpp
+edge_EdgeTest_LDADD = \
+	$(top_builddir)/src/libgprs.la \
+	$(LIBOSMOGB_LIBS) \
+	$(LIBOSMOGSM_LIBS) \
+	$(LIBOSMOCORE_LIBS) \
+	$(COMMON_LA)
+
 emu_pcu_emu_SOURCES = emu/pcu_emu.cpp emu/test_replay_gprs_attach.cpp \
 	emu/openbsc_clone.c emu/openbsc_clone.h emu/gprs_tests.h \
 	emu/test_pdp_activation.cpp
@@ -104,7 +112,8 @@ EXTRA_DIST = \
 	ms/MsTest.ok ms/MsTest.err \
 	llc/LlcTest.ok llc/LlcTest.err \
 	llist/LListTest.ok llist/LListTest.err \
-	codel/codel_test.ok
+	codel/codel_test.ok \
+	edge/EdgeTest.ok
 
 DISTCLEANFILES = atconfig
 
diff --git a/tests/edge/EdgeTest.cpp b/tests/edge/EdgeTest.cpp
new file mode 100644
index 00000000..ae29221c
--- /dev/null
+++ b/tests/edge/EdgeTest.cpp
@@ -0,0 +1,220 @@
+/*
+ * EdgeTest.cpp
+ *
+ * Copyright (C) 2015 by Sysmocom s.f.m.c. GmbH
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "gprs_debug.h"
+#include "gprs_coding_scheme.h"
+
+extern "C" {
+#include "pcu_vty.h"
+
+#include <osmocom/core/application.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/vty/vty.h>
+}
+
+#include <errno.h>
+
+void *tall_pcu_ctx;
+int16_t spoof_mnc = 0, spoof_mcc = 0;
+
+static void check_coding_scheme(GprsCodingScheme& cs, GprsCodingScheme::Mode mode)
+{
+	volatile unsigned expected_size;
+	GprsCodingScheme new_cs;
+
+	OSMO_ASSERT(cs.isValid());
+	OSMO_ASSERT(cs.isCompatible(mode));
+
+	/* Check static getBySizeUL() */
+	expected_size = cs.maxBytesUL();
+	if (cs.spareBitsUL() > 0)
+		expected_size += 1;
+	OSMO_ASSERT(expected_size == cs.sizeUL());
+	OSMO_ASSERT(cs == GprsCodingScheme::getBySizeUL(expected_size));
+
+	/* Check static sizeUL() */
+	expected_size = cs.maxBytesDL();
+	if (cs.spareBitsDL() > 0)
+		expected_size += 1;
+	OSMO_ASSERT(expected_size == cs.sizeDL());
+
+	/* Check inc/dec */
+	new_cs = cs;
+	new_cs.inc(mode);
+	OSMO_ASSERT(new_cs.isCompatible(mode));
+	if (new_cs != cs) {
+		new_cs.dec(mode);
+		OSMO_ASSERT(new_cs.isCompatible(mode));
+		OSMO_ASSERT(new_cs == cs);
+	}
+	new_cs.dec(mode);
+	OSMO_ASSERT(new_cs.isCompatible(mode));
+	if (new_cs != cs) {
+		new_cs.inc(mode);
+		OSMO_ASSERT(new_cs.isCompatible(mode));
+		OSMO_ASSERT(new_cs == cs);
+	}
+}
+
+static void test_coding_scheme()
+{
+	unsigned i;
+	unsigned last_size_UL;
+	unsigned last_size_DL;
+	GprsCodingScheme::Scheme gprs_schemes[] = {
+		GprsCodingScheme::CS1,
+		GprsCodingScheme::CS2,
+		GprsCodingScheme::CS3,
+		GprsCodingScheme::CS4
+	};
+	struct {
+		GprsCodingScheme::Scheme s;
+		bool is_gmsk;
+	} egprs_schemes[] = {
+		{GprsCodingScheme::MCS1, true},
+		{GprsCodingScheme::MCS2, true},
+		{GprsCodingScheme::MCS3, true},
+		{GprsCodingScheme::MCS4, true},
+		{GprsCodingScheme::MCS5, false},
+		{GprsCodingScheme::MCS6, false},
+		{GprsCodingScheme::MCS7, false},
+		{GprsCodingScheme::MCS8, false},
+		{GprsCodingScheme::MCS9, false},
+	};
+
+	printf("=== start %s ===\n", __func__);
+
+	GprsCodingScheme cs;
+	OSMO_ASSERT(!cs);
+	OSMO_ASSERT(cs == GprsCodingScheme::UNKNOWN);
+	OSMO_ASSERT(!cs.isCompatible(GprsCodingScheme::GPRS));
+	OSMO_ASSERT(!cs.isCompatible(GprsCodingScheme::EGPRS_GMSK));
+	OSMO_ASSERT(!cs.isCompatible(GprsCodingScheme::EGPRS));
+
+	last_size_UL = 0;
+	last_size_DL = 0;
+
+	for (i = 0; i < ARRAY_SIZE(gprs_schemes); i++) {
+		GprsCodingScheme current_cs(gprs_schemes[i]);
+		OSMO_ASSERT(current_cs.isGprs());
+		OSMO_ASSERT(!current_cs.isEgprs());
+		OSMO_ASSERT(!current_cs.isEgprsGmsk());
+		OSMO_ASSERT(current_cs == gprs_schemes[i]);
+		OSMO_ASSERT(current_cs == GprsCodingScheme(gprs_schemes[i]));
+
+		/* Check strong monotonicity */
+		OSMO_ASSERT(current_cs.maxBytesUL() > last_size_UL);
+		OSMO_ASSERT(current_cs.maxBytesDL() > last_size_DL);
+		last_size_UL = current_cs.maxBytesUL();
+		last_size_DL = current_cs.maxBytesDL();
+
+		check_coding_scheme(current_cs, GprsCodingScheme::GPRS);
+	}
+	OSMO_ASSERT(i == 4);
+
+	last_size_UL = 0;
+	last_size_DL = 0;
+
+	for (i = 0; i < ARRAY_SIZE(egprs_schemes); i++) {
+		GprsCodingScheme current_cs(egprs_schemes[i].s);
+		OSMO_ASSERT(!current_cs.isGprs());
+		OSMO_ASSERT(current_cs.isEgprs());
+		OSMO_ASSERT(!!current_cs.isEgprsGmsk() == !!egprs_schemes[i].is_gmsk);
+		OSMO_ASSERT(current_cs == egprs_schemes[i].s);
+		OSMO_ASSERT(current_cs == GprsCodingScheme(egprs_schemes[i].s));
+
+		/* Check strong monotonicity */
+		OSMO_ASSERT(current_cs.maxBytesUL() > last_size_UL);
+		OSMO_ASSERT(current_cs.maxBytesDL() > last_size_DL);
+		last_size_UL = current_cs.maxBytesUL();
+		last_size_DL = current_cs.maxBytesDL();
+
+		if (egprs_schemes[i].is_gmsk)
+			check_coding_scheme(current_cs, GprsCodingScheme::EGPRS_GMSK);
+		check_coding_scheme(current_cs, GprsCodingScheme::EGPRS);
+	}
+	OSMO_ASSERT(i == 9);
+
+	printf("=== end %s ===\n", __func__);
+}
+
+
+static const struct log_info_cat default_categories[] = {
+	{"DCSN1", "\033[1;31m", "Concrete Syntax Notation One (CSN1)", LOGL_INFO, 0},
+	{"DL1IF", "\033[1;32m", "GPRS PCU L1 interface (L1IF)", LOGL_DEBUG, 1},
+	{"DRLCMAC", "\033[0;33m", "GPRS RLC/MAC layer (RLCMAC)", LOGL_DEBUG, 1},
+	{"DRLCMACDATA", "\033[0;33m", "GPRS RLC/MAC layer Data (RLCMAC)", LOGL_DEBUG, 1},
+	{"DRLCMACDL", "\033[1;33m", "GPRS RLC/MAC layer Downlink (RLCMAC)", LOGL_DEBUG, 1},
+	{"DRLCMACUL", "\033[1;36m", "GPRS RLC/MAC layer Uplink (RLCMAC)", LOGL_DEBUG, 1},
+	{"DRLCMACSCHED", "\033[0;36m", "GPRS RLC/MAC layer Scheduling (RLCMAC)", LOGL_DEBUG, 1},
+	{"DRLCMACMEAS", "\033[1;31m", "GPRS RLC/MAC layer Measurements (RLCMAC)", LOGL_INFO, 1},
+	{"DNS","\033[1;34m", "GPRS Network Service Protocol (NS)", LOGL_INFO , 1},
+	{"DBSSGP","\033[1;34m", "GPRS BSS Gateway Protocol (BSSGP)", LOGL_INFO , 1},
+	{"DPCU", "\033[1;35m", "GPRS Packet Control Unit (PCU)", LOGL_NOTICE, 1},
+};
+
+static int filter_fn(const struct log_context *ctx,
+	struct log_target *tar)
+{
+	return 1;
+}
+
+const struct log_info debug_log_info = {
+	filter_fn,
+	(struct log_info_cat*)default_categories,
+	ARRAY_SIZE(default_categories),
+};
+
+int main(int argc, char **argv)
+{
+	struct vty_app_info pcu_vty_info = {0};
+
+	tall_pcu_ctx = talloc_named_const(NULL, 1, "EdgeTest context");
+	if (!tall_pcu_ctx)
+		abort();
+
+	msgb_set_talloc_ctx(tall_pcu_ctx);
+	osmo_init_logging(&debug_log_info);
+	log_set_use_color(osmo_stderr_target, 0);
+	log_set_print_filename(osmo_stderr_target, 0);
+
+	vty_init(&pcu_vty_info);
+	pcu_vty_init(&debug_log_info);
+
+	test_coding_scheme();
+
+	if (getenv("TALLOC_REPORT_FULL"))
+		talloc_report_full(tall_pcu_ctx, stderr);
+	return EXIT_SUCCESS;
+}
+
+/*
+ * stubs that should not be reached
+ */
+extern "C" {
+void l1if_pdch_req() { abort(); }
+void l1if_connect_pdch() { abort(); }
+void l1if_close_pdch() { abort(); }
+void l1if_open_pdch() { abort(); }
+}
diff --git a/tests/edge/EdgeTest.ok b/tests/edge/EdgeTest.ok
new file mode 100644
index 00000000..8669246d
--- /dev/null
+++ b/tests/edge/EdgeTest.ok
@@ -0,0 +1,2 @@
+=== start test_coding_scheme ===
+=== end test_coding_scheme ===
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 71179d1e..1049b318 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -23,6 +23,13 @@ cat $abs_srcdir/tbf/TbfTest.err > experr
 AT_CHECK([$OSMO_QEMU $abs_top_builddir/tests/tbf/TbfTest], [0], [expout], [experr])
 AT_CLEANUP
 
+AT_SETUP([edge])
+AT_KEYWORDS([edge])
+cat $abs_srcdir/edge/EdgeTest.ok > expout
+cat $abs_srcdir/edge/EdgeTest.err > experr
+AT_CHECK([$OSMO_QEMU $abs_top_builddir/tests/edge/EdgeTest], [0], [expout], [ignore])
+AT_CLEANUP
+
 AT_SETUP([types])
 AT_KEYWORDS([types])
 cat $abs_srcdir/types/TypesTest.ok > expout