Added integration tests

internal/integrationtest/compile_4/core_caching_test.go

@@ -0,0 +1,111 @@
+// This file is part of arduino-cli.
+//
+// Copyright 2023 ARDUINO SA (http://www.arduino.cc/)
+//
+// This software is released under the GNU General Public License version 3,
+// which covers the main part of arduino-cli.
+// The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to
+// modify or otherwise use the software for commercial activities involving the
+// Arduino software without disclosing the source code of your own applications.
+// To purchase a commercial license, send an email to [email protected].
+
+package compile_test
+
+import (
+	"testing"
+
+	"github.com/arduino/arduino-cli/internal/integrationtest"
+	"github.com/arduino/go-paths-helper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestBuildCacheCoreWithExtraDirs(t *testing.T) {
+	env, cli := integrationtest.CreateArduinoCLIWithEnvironment(t)
+	t.Cleanup(env.CleanUp)
+
+	// Install Arduino AVR Boards
+	_, _, err := cli.Run("core", "install", "arduino:[email protected]")
+	require.NoError(t, err)
+
+	// Main core cache
+	defaultCache := paths.TempDir().Join("arduino")
+	cache1, err := paths.MkTempDir("", "core_cache")
+	require.NoError(t, err)
+	t.Cleanup(func() { cache1.RemoveAll() })
+	cache2, err := paths.MkTempDir("", "extra_core_cache")
+	require.NoError(t, err)
+	t.Cleanup(func() { cache2.RemoveAll() })
+
+	sketch, err := paths.New("testdata", "BareMinimum").Abs()
+	require.NoError(t, err)
+
+	// Compile sketch with empty cache
+	out, _, err := cli.Run("compile", "-v", "-b", "arduino:avr:uno", sketch.String())
+	require.NoError(t, err)
+	require.Contains(t, string(out), "Archiving built core (caching) in: "+defaultCache.String())
+
+	// Check that the core cache is re-used
+	out, _, err = cli.Run("compile", "-v", "-b", "arduino:avr:uno", sketch.String())
+	require.NoError(t, err)
+	require.Contains(t, string(out), "Using precompiled core: "+defaultCache.String())
+
+	{
+		env := cli.GetDefaultEnv()
+		env["ARDUINO_BUILD_CACHE_PATH"] = cache1.String()
+
+		// Compile sketch with empty cache user-defined core cache
+		out, _, err := cli.RunWithCustomEnv(env, "compile", "-v", "-b", "arduino:avr:uno", sketch.String())
+		require.NoError(t, err)
+		require.Contains(t, string(out), "Archiving built core (caching) in: "+cache1.String())
+
+		// Check that the core cache is re-used with user-defined core cache
+		out, _, err = cli.RunWithCustomEnv(env, "compile", "-v", "-b", "arduino:avr:uno", sketch.String())
+		require.NoError(t, err)
+		require.Contains(t, string(out), "Using precompiled core: "+cache1.String())
+
+		// Clean run should rebuild and save in user-defined core cache
+		out, _, err = cli.RunWithCustomEnv(env, "compile", "-v", "-b", "arduino:avr:uno", "--clean", sketch.String())
+		require.NoError(t, err)
+		require.Contains(t, string(out), "Archiving built core (caching) in: "+cache1.String())
+	}
+
+	{
+		env := cli.GetDefaultEnv()
+		env["ARDUINO_BUILD_CACHE_EXTRA_PATHS"] = cache1.String()
+
+		// Both extra and default cache are full, should use the default one
+		out, _, err := cli.RunWithCustomEnv(env, "compile", "-v", "-b", "arduino:avr:uno", sketch.String())
+		require.NoError(t, err)
+		require.Contains(t, string(out), "Using precompiled core: "+defaultCache.String())
+
+		// Clean run, should rebuild and save in default cache
+		out, _, err = cli.RunWithCustomEnv(env, "compile", "-v", "-b", "arduino:avr:uno", "--clean", sketch.String())
+		require.NoError(t, err)
+		require.Contains(t, string(out), "Archiving built core (caching) in: "+defaultCache.String())
+	}
+
+	{
+		env := cli.GetDefaultEnv()
+		env["ARDUINO_BUILD_CACHE_EXTRA_PATHS"] = cache1.String() // Populated
+		env["ARDUINO_BUILD_CACHE_PATH"] = cache2.String()        // Empty
+
+		// Extra cache is full, should use the cache1 (extra)
+		out, _, err := cli.RunWithCustomEnv(env, "compile", "-v", "-b", "arduino:avr:uno", sketch.String())
+		require.NoError(t, err)
+		require.Contains(t, string(out), "Using precompiled core: "+cache1.String())
+
+		// Clean run, should rebuild and save in cache2 (user defined default cache)
+		out, _, err = cli.RunWithCustomEnv(env, "compile", "-v", "-b", "arduino:avr:uno", "--clean", sketch.String())
+		require.NoError(t, err)
+		require.Contains(t, string(out), "Archiving built core (caching) in: "+cache2.String())
+
+		// Both caches are full, should use the cache2 (user defined default)
+		out, _, err = cli.RunWithCustomEnv(env, "compile", "-v", "-b", "arduino:avr:uno", sketch.String())
+		require.NoError(t, err)
+		require.Contains(t, string(out), "Using precompiled core: "+cache2.String())
+	}
+}

internal/integrationtest/compile_4/testdata/BareMinimum/BareMinimum.ino

@@ -0,0 +1,2 @@
+void setup() {}
+void loop() {}