Merge branch 'refactor/sliding-window-static-ring-buffer' into integration

tests/components/adc/test.rp2040-pico2-ard.yaml

@@ -0,0 +1,11 @@
+sensor:
+  - id: my_sensor
+    platform: adc
+    pin: VCC
+    name: ADC Test sensor
+    update_interval: "1:01"
+    unit_of_measurement: "°C"
+    icon: "mdi:water-percent"
+    accuracy_decimals: 5
+    setup_priority: -100
+    force_update: true

tests/components/modbus/modbus_test.cpp

@@ -0,0 +1,59 @@
+#include <gtest/gtest.h>
+#include "esphome/components/modbus/modbus.h"
+#include "esphome/core/helpers.h"
+
+namespace esphome::modbus {
+
+// Exposes protected methods for testing.
+class TestModbus : public Modbus {
+ public:
+  bool test_parse_modbus_byte(uint8_t byte) { return this->parse_modbus_byte_(byte); }
+  void test_clear_rx_buffer() { this->rx_buffer_.clear(); }
+  void set_waiting(uint8_t addr) { this->waiting_for_response_ = addr; }
+};
+
+class MockDevice : public ModbusDevice {
+ public:
+  void on_modbus_data(const std::vector<uint8_t> &data) override { this->data_received = true; }
+  bool data_received{false};
+};
+
+TEST(ModbusTest, TwoByteRegressionTest) {
+  TestModbus modbus;
+  modbus.set_role(ModbusRole::CLIENT);
+  // First byte (at=0)
+  EXPECT_TRUE(modbus.test_parse_modbus_byte(0x01));
+  // Second byte (at=1)
+  // This used to reach raw[2] because it skipped the if(at==2) check, causing a
+  // buffer overflow.
+  EXPECT_TRUE(modbus.test_parse_modbus_byte(0x03));
+}
+
+TEST(ModbusTest, TestValidFrame) {
+  TestModbus modbus;
+  modbus.set_role(ModbusRole::CLIENT);
+
+  MockDevice device;
+  device.set_parent(&modbus);
+  device.set_address(0x01);
+  modbus.register_device(&device);
+  modbus.set_waiting(0x01);
+
+  // Address 1, Function 3, Length 2, Data 0x1234
+  uint8_t frame_data[] = {0x01, 0x03, 0x02, 0x12, 0x34};
+  uint16_t crc = esphome::crc16(frame_data, sizeof(frame_data));
+
+  std::vector<uint8_t> frame;
+  for (uint8_t b : frame_data)
+    frame.push_back(b);
+  frame.push_back(crc & 0xFF);
+  frame.push_back((crc >> 8) & 0xFF);
+
+  for (size_t i = 0; i < frame.size(); i++) {
+    bool result = modbus.test_parse_modbus_byte(frame[i]);
+    EXPECT_TRUE(result) << "Failed at byte " << i << " (0x" << std::hex << (int) frame[i] << ")";
+  }
+  EXPECT_TRUE(device.data_received);
+}
+
+}  // namespace esphome::modbus

tests/components/spi/test.rp2040-pico2-ard.yaml

@@ -0,0 +1,6 @@
+substitutions:
+  clk_pin: GPIO2
+  mosi_pin: GPIO3
+  miso_pin: GPIO4
+
+<<: !include common.yaml

tests/components/uart/test.rp2040-ard.yaml

@@ -23,3 +23,6 @@ uart:
     baud_rate: 115200
     debug:
       debug_prefix: "[UART1] "
+  - id: uart_rx_only
+    rx_pin: 17
+    baud_rate: 1200

tests/test_build_components/build_components_base.rp2040-pico2-ard.yaml

@@ -0,0 +1,15 @@
+esphome:
+  name: componenttestrp2040pico2ard
+  friendly_name: $component_name
+
+rp2040:
+  board: rpipico2
+
+logger:
+  level: VERY_VERBOSE
+
+packages:
+  component_under_test: !include
+    file: $component_test_file
+    vars:
+      component_test_file: $component_test_file

tests/test_build_components/common/spi/rp2040-pico2-ard.yaml

@@ -0,0 +1,12 @@
+# Common SPI configuration for RP2040 Pico 2 (RP2350) Arduino tests
+
+substitutions:
+  clk_pin: GPIO18
+  mosi_pin: GPIO19
+  miso_pin: GPIO16
+
+spi:
+  - id: spi_bus
+    clk_pin: ${clk_pin}
+    mosi_pin: ${mosi_pin}
+    miso_pin: ${miso_pin}