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Update test

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reviewable/pr13883/r1
ncteisen 7 years ago
parent 7042b519e8
commit 39c65638c0
1 changed files with 83 additions and 104 deletions
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  1. 187
      test/core/channel/channel_tracer_test.cc

187
test/core/channel/channel_tracer_test.cc
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@ -30,15 +30,17 @@
#include "test/core/util/test_config.h"
using grpc_core::ChannelTracer;
using grpc_core::MakeRefCounted;
using grpc_core::RefCountedPtr;
static void add_simple_trace(ChannelTracer* tracer) {
static void add_simple_trace(RefCountedPtr<ChannelTracer> tracer) {
tracer->AddTrace(grpc_slice_from_static_string("simple trace"),
GRPC_ERROR_CREATE_FROM_STATIC_STRING("Error"),
GRPC_CHANNEL_READY, nullptr);
GRPC_CHANNEL_READY);
}
// checks for the existence of all the required members of the tracer.
static void validate_tracer(ChannelTracer* tracer,
static void validate_tracer(RefCountedPtr<ChannelTracer> tracer,
size_t expected_num_nodes_logged,
size_t max_nodes) {
if (!max_nodes) return;
@ -50,7 +52,8 @@ static void validate_tracer(ChannelTracer* tracer,
gpr_free(json_str);
}
static void validate_tracer_data_matches_uuid_lookup(ChannelTracer* tracer) {
static void validate_tracer_data_matches_uuid_lookup(
RefCountedPtr<ChannelTracer> tracer) {
intptr_t uuid = tracer->GetUuid();
if (uuid == -1) return; // Doesn't make sense to lookup if tracing disabled
char* tracer_json_str = tracer->RenderTrace(true);
@ -62,7 +65,7 @@ static void validate_tracer_data_matches_uuid_lookup(ChannelTracer* tracer) {
}
// ensures the tracer has the correct number of children tracers.
static void validate_children(ChannelTracer* tracer,
static void validate_children(RefCountedPtr<ChannelTracer> tracer,
size_t expected_num_children) {
char* json_str = tracer->RenderTrace(true);
grpc_json* json = grpc_json_parse_string(json_str);
@ -75,28 +78,28 @@ static void validate_children(ChannelTracer* tracer,
// lookups by uuid.
static void test_basic_channel_tracing(size_t max_nodes) {
grpc_core::ExecCtx exec_ctx;
ChannelTracer tracer(max_nodes);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
validate_tracer_data_matches_uuid_lookup(&tracer);
tracer.AddTrace(
RefCountedPtr<ChannelTracer> tracer =
MakeRefCounted<ChannelTracer>(max_nodes);
add_simple_trace(tracer);
add_simple_trace(tracer);
validate_tracer_data_matches_uuid_lookup(tracer);
tracer->AddTrace(
grpc_slice_from_static_string("trace three"),
grpc_error_set_int(GRPC_ERROR_CREATE_FROM_STATIC_STRING("Error"),
GRPC_ERROR_INT_HTTP2_ERROR, 2),
GRPC_CHANNEL_IDLE, nullptr);
tracer.AddTrace(grpc_slice_from_static_string("trace four"), GRPC_ERROR_NONE,
GRPC_CHANNEL_SHUTDOWN, nullptr);
validate_tracer(&tracer, 4, max_nodes);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
validate_tracer(&tracer, 6, max_nodes);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
validate_tracer(&tracer, 10, max_nodes);
validate_tracer_data_matches_uuid_lookup(&tracer);
tracer.Unref();
GRPC_CHANNEL_IDLE);
tracer->AddTrace(grpc_slice_from_static_string("trace four"), GRPC_ERROR_NONE,
GRPC_CHANNEL_SHUTDOWN);
validate_tracer(tracer, 4, max_nodes);
add_simple_trace(tracer);
add_simple_trace(tracer);
validate_tracer(tracer, 6, max_nodes);
add_simple_trace(tracer);
add_simple_trace(tracer);
add_simple_trace(tracer);
add_simple_trace(tracer);
validate_tracer(tracer, 10, max_nodes);
validate_tracer_data_matches_uuid_lookup(tracer);
}
// Calls basic test with various values for max_nodes (including 0, which turns
@ -115,41 +118,39 @@ static void test_basic_channel_sizing() {
// and this function will both hold refs to the subchannel.
static void test_complex_channel_tracing(size_t max_nodes) {
grpc_core::ExecCtx exec_ctx;
ChannelTracer tracer(max_nodes);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
ChannelTracer sc1(max_nodes);
tracer.AddTrace(grpc_slice_from_static_string("subchannel one created"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, &sc1);
validate_tracer(&tracer, 3, max_nodes);
add_simple_trace(&sc1);
add_simple_trace(&sc1);
add_simple_trace(&sc1);
validate_tracer(&sc1, 3, max_nodes);
add_simple_trace(&sc1);
add_simple_trace(&sc1);
add_simple_trace(&sc1);
validate_tracer(&sc1, 6, max_nodes);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
validate_tracer(&tracer, 5, max_nodes);
validate_tracer_data_matches_uuid_lookup(&tracer);
ChannelTracer sc2(max_nodes);
tracer.AddTrace(grpc_slice_from_static_string("subchannel two created"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, &sc2);
tracer.AddTrace(grpc_slice_from_static_string("subchannel one inactive"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, &sc1);
validate_tracer(&tracer, 7, max_nodes);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
validate_tracer_data_matches_uuid_lookup(&tracer);
sc1.Unref();
sc2.Unref();
tracer.Unref();
RefCountedPtr<ChannelTracer> tracer =
MakeRefCounted<ChannelTracer>(max_nodes);
add_simple_trace(tracer);
add_simple_trace(tracer);
RefCountedPtr<ChannelTracer> sc1 = MakeRefCounted<ChannelTracer>(max_nodes);
tracer->AddTrace(grpc_slice_from_static_string("subchannel one created"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, sc1);
validate_tracer(tracer, 3, max_nodes);
add_simple_trace(sc1);
add_simple_trace(sc1);
add_simple_trace(sc1);
validate_tracer(sc1, 3, max_nodes);
add_simple_trace(sc1);
add_simple_trace(sc1);
add_simple_trace(sc1);
validate_tracer(sc1, 6, max_nodes);
add_simple_trace(tracer);
add_simple_trace(tracer);
validate_tracer(tracer, 5, max_nodes);
validate_tracer_data_matches_uuid_lookup(tracer);
RefCountedPtr<ChannelTracer> sc2 = MakeRefCounted<ChannelTracer>(max_nodes);
tracer->AddTrace(grpc_slice_from_static_string("subchannel two created"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, sc2);
tracer->AddTrace(grpc_slice_from_static_string("subchannel one inactive"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, sc1);
validate_tracer(tracer, 7, max_nodes);
add_simple_trace(tracer);
add_simple_trace(tracer);
add_simple_trace(tracer);
add_simple_trace(tracer);
add_simple_trace(tracer);
add_simple_trace(tracer);
validate_tracer_data_matches_uuid_lookup(tracer);
}
// Calls the complex test with a sweep of sizes for max_nodes.
@ -162,59 +163,38 @@ static void test_complex_channel_sizing() {
test_complex_channel_tracing(15);
}
// Tests edge case in which the parent channel tracer is destroyed before the
// subchannel. Not sure if it is a realistic scenario, but the refcounting
// balance should still hold.
static void test_delete_parent_first() {
grpc_core::ExecCtx exec_ctx;
ChannelTracer tracer(3);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
ChannelTracer sc1(3);
tracer.AddTrace(grpc_slice_from_static_string("subchannel one created"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, &sc1);
// this will cause the tracer destructor to run.
tracer.Unref();
sc1.Unref();
}
// Test a case in which the parent channel has subchannels and the subchannels
// have connections. Ensures that everything lives as long as it should then
// gets deleted.
static void test_nesting() {
grpc_core::ExecCtx exec_ctx;
ChannelTracer tracer(10);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
ChannelTracer sc1(5);
tracer.AddTrace(grpc_slice_from_static_string("subchannel one created"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, &sc1);
RefCountedPtr<ChannelTracer> tracer = MakeRefCounted<ChannelTracer>(10);
add_simple_trace(tracer);
add_simple_trace(tracer);
RefCountedPtr<ChannelTracer> sc1 = MakeRefCounted<ChannelTracer>(5);
tracer->AddTrace(grpc_slice_from_static_string("subchannel one created"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, sc1);
// channel has only one subchannel right here.
validate_children(&tracer, 1);
add_simple_trace(&sc1);
ChannelTracer conn1(5);
validate_children(tracer, 1);
add_simple_trace(sc1);
RefCountedPtr<ChannelTracer> conn1 = MakeRefCounted<ChannelTracer>(5);
// nesting one level deeper.
sc1.AddTrace(grpc_slice_from_static_string("connection one created"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, &conn1);
validate_children(&sc1, 1);
add_simple_trace(&conn1);
add_simple_trace(&tracer);
add_simple_trace(&tracer);
ChannelTracer sc2(5);
tracer.AddTrace(grpc_slice_from_static_string("subchannel two created"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, &sc2);
validate_children(&tracer, 2);
sc1->AddTrace(grpc_slice_from_static_string("connection one created"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, conn1);
validate_children(sc1, 1);
add_simple_trace(conn1);
add_simple_trace(tracer);
add_simple_trace(tracer);
RefCountedPtr<ChannelTracer> sc2 = MakeRefCounted<ChannelTracer>(5);
tracer->AddTrace(grpc_slice_from_static_string("subchannel two created"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, sc2);
validate_children(tracer, 2);
// this trace should not get added to the parents children since it is already
// present in the tracer.
tracer.AddTrace(grpc_slice_from_static_string("subchannel one inactive"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, &sc1);
validate_children(&tracer, 2);
add_simple_trace(&tracer);
conn1.Unref();
sc1.Unref();
sc2.Unref();
tracer.Unref();
tracer->AddTrace(grpc_slice_from_static_string("subchannel one inactive"),
GRPC_ERROR_NONE, GRPC_CHANNEL_IDLE, sc1);
validate_children(tracer, 2);
add_simple_trace(tracer);
}
int main(int argc, char** argv) {
@ -224,7 +204,6 @@ int main(int argc, char** argv) {
test_basic_channel_sizing();
test_complex_channel_tracing(5);
test_complex_channel_sizing();
test_delete_parent_first();
test_nesting();
grpc_shutdown();
return 0;

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