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fix(modem): Added test-cases that exercise mode transitions

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This commit is contained in:
David Cermak
2023-11-06 15:17:10 +01:00
parent 93cb2caadb
commit aff571df2c
1 changed files with 86 additions and 1 deletions
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87
components/esp_modem/test/host_test/main/test_modem.cpp
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
@ -247,3 +247,88 @@ TEST_CASE("Test CMUX protocol by injecting payloads", "[esp_modem]")
CHECK(ret == command_result::OK);
}
}
TEST_CASE("Command and Data mode transitions", "[esp_modem][transitions]")
{
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);
// UNDEF -> CMD (OK)
uint8_t resp[] = "DISCONNECTED\n";
loopback->inject(&resp[0], sizeof(resp), sizeof(resp), /* 10ms before injecting reply */100, 0);
loopback->write(nullptr, 0); /* this triggers sending the injected response */
CHECK(dce->set_mode(esp_modem::modem_mode::COMMAND_MODE) == true);
loopback->inject(nullptr, 0, 0, 0, 0); /* reset injection, use synchronous replies now */
// CMD -> CMD (Fail)
CHECK(dce->set_mode(esp_modem::modem_mode::COMMAND_MODE) == false);
// Forcing transition to CMD (via UNDEF)
// CMD -> UNDEF (OK)
CHECK(dce->set_mode(esp_modem::modem_mode::UNDEF) == true);
// UNDEF -> CMD (OK)
CHECK(dce->set_mode(esp_modem::modem_mode::COMMAND_MODE) == true);
// CMD -> DATA (OK)
CHECK(dce->set_mode(esp_modem::modem_mode::DATA_MODE) == true);
// DATA -> CMD (OK)
CHECK(dce->set_mode(esp_modem::modem_mode::COMMAND_MODE) == true);
}
TEST_CASE("CMUX mode transitions", "[esp_modem][transitions]")
{
auto term = std::make_unique<LoopbackTerm>();
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);
// UNDEF -> CMUX (OK)
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MODE) == true);
// CMUX -> DATA (Fail)
CHECK(dce->set_mode(esp_modem::modem_mode::DATA_MODE) == false);
// CMUX back -> CMD (OK)
CHECK(dce->set_mode(esp_modem::modem_mode::COMMAND_MODE) == true);
}
TEST_CASE("CMUX manual mode transitions", "[esp_modem][transitions]")
{
auto term = std::make_unique<LoopbackTerm>();
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);
// Happy flow transitions of Manual CMUX transitions
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_MODE) == true);
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_EXIT) == true);
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_MODE) == true);
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_SWAP) == true);
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_DATA) == true);
// Cannot test CMUX_MANUAL_DATA -> CMUX_MANUAL_COMMAND with our mocked terminal for now
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_EXIT) == true);
// Check some out of order manual transitions, most of them are allowed,
// but some fail as modem layers report issues with specific steps
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_SWAP) == false); // cannot go directly to SWAP
CHECK(dce->set_mode(esp_modem::modem_mode::UNDEF) == true);
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_SWAP) == true); // can go via UNDEF
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_EXIT) == false); // EXIT is allowed, but CMUX terms don't exist
CHECK(dce->set_mode(esp_modem::modem_mode::UNDEF) == true);
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_MODE) == true); // Enter CMUX (via UNDEF)
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_DATA) == true); // Go directly to DATA mode
CHECK(dce->set_mode(esp_modem::modem_mode::CMUX_MANUAL_EXIT) == true); // Exit CMUX
CHECK(dce->set_mode(esp_modem::modem_mode::UNDEF) == true); // Succeeds from any state
}