tests: Add a simple test for the JSON configurations option.

Signed-off-by: Abdelatif Guettouche <[email protected]>

Author: Ouss4

Diff for: tests/democfg/cfg.json

@@ -0,0 +1,20 @@
+{
+  "targets": [
+    {
+      "name": "esp32",
+      "fqbn": "espressif:esp32:esp32:PSRAM=enabled,PartitionScheme=huge_app,FlashMode=dio"
+    },
+    {
+      "name": "esp32s2",
+      "fqbn": "espressif:esp32:esp32s2:PSRAM=enabled,PartitionScheme=huge_app"
+    },
+    {
+      "name": "esp32c3",
+      "fqbn": "espressif:esp32:esp32c3:PartitionScheme=huge_app"
+    },
+    {
+      "name": "esp32s3",
+      "fqbn": "espressif:esp32:esp32s3:PSRAM=opi,USBMode=default,PartitionScheme=huge_app"
+    }
+  ]
+}

Diff for: tests/democfg/democfg.ino

@@ -0,0 +1,11 @@
+void setup(){
+  Serial.begin(115200);
+  while (!Serial) {
+    ;
+  }
+
+  Serial.println("Hello cfg!");
+}
+
+void loop(){
+}

Diff for: tests/democfg/test_democfg.py

@@ -0,0 +1,2 @@
+def test_hello_world(dut):
+    dut.expect('Hello cfg!')