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fix(esp_modem): Support 2 byte size packets

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Closes https://github.com/espressif/esp-protocols/issues/46
This commit is contained in:
David Cermak
2022-06-06 15:05:38 +02:00
parent 1f91d248f5
commit 128c0a2d87
4 changed files with 97 additions and 4 deletions
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44
components/esp_modem/test/host_test/main/test_modem.cpp
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@ -155,3 +155,47 @@ TEST_CASE("DCE CMUX test", "[esp_modem]")
}, 1000);
CHECK(ret == command_result::OK);
}
TEST_CASE("Test CMUX protocol by injecting payloads", "[esp_modem]")
{
auto term = std::make_unique<LoopbackTerm>();
auto loopback = term.get();
auto dte = std::make_shared<DTE>(std::move(term));
CHECK(term == nullptr);
esp_modem_dce_config_t dce_config = ESP_MODEM_DCE_DEFAULT_CONFIG("APN");
esp_netif_t netif{};
auto dce = create_SIM7600_dce(&dce_config, dte, &netif);
CHECK(dce != nullptr);
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MODE) == true);
const auto test_command = "Test\n";
// 1 byte payload size
uint8_t test_payload[] = {0xf9, 0x05, 0xff, 0x0b, 0x54, 0x65, 0x73, 0x74, 0x0a, 0xbb, 0xf9 };
loopback->inject(&test_payload[0], sizeof(test_payload), 1);
auto ret = dce->command(test_command, [&](uint8_t *data, size_t len) {
std::string response((char *) data, len);
CHECK(response == test_command);
return command_result::OK;
}, 1000);
CHECK(ret == command_result::OK);
// 2 byte payload size
uint8_t long_payload[453] = { 0xf9, 0x05, 0xef, 0x7c, 0x03, 0x7e }; // header
long_payload[5] = 0x7e; // payload to validate
long_payload[449] = 0x7e;
long_payload[450] = '\n';
long_payload[451] = 0x53; // footer
long_payload[452] = 0xf9;
for (int i=0; i<5; ++i) {
// inject the whole payload (i=0) and then per 1,2,3,4 bytes (i)
loopback->inject(&long_payload[0], sizeof(long_payload), i==0?sizeof(long_payload):i);
auto ret = dce->command("ignore", [&](uint8_t *data, size_t len) {
CHECK(data[0] == 0x7e);
CHECK(data[len-2] == 0x7e);
CHECK(data[len-1] == '\n');
return command_result::OK;
}, 1000);
CHECK(ret == command_result::OK);
}
}