PIO env, Travis test for STM32F407VE (#14674)

buildroot/share/tests/black_stm32f407ve-tests

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+#
+# Build tests for STM32F407VET6
+#
+
+# exit on first failure
+set -e
+
+use_example_configs STM32/Black_STM32F407VET6
+exec_test $1 $2 "Full-featured Sample Black STM32F407VET6 config"
+
+# cleanup
+restore_configs