internal/rosa: cure checks

This cures all presets if a cache directory is supplied and verbose is set.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/rosa_test.go

@@ -0,0 +1,93 @@
+package rosa_test
+
+import (
+	"context"
+	"log"
+	"os"
+	"os/signal"
+	"sync"
+	"syscall"
+	"testing"
+
+	"hakurei.app/container"
+	"hakurei.app/container/check"
+	"hakurei.app/internal/pkg"
+	"hakurei.app/internal/rosa"
+	"hakurei.app/message"
+)
+
+var (
+	// skipBuildTest caches whether build tests are skipped.
+	skipBuildTest bool
+	// buildTestCache is populated by getCache and must not be accessed directly.
+	buildTestCache *pkg.Cache
+	// buildTestCacheCancel cancels buildTestCache.
+	buildTestCacheCancel context.CancelFunc
+	// buildTestCacheOnce synchronises access to buildTestCache.
+	buildTestCacheOnce sync.Once
+)
+
+func TestMain(m *testing.M) {
+	container.TryArgv0(nil)
+
+	code := m.Run()
+	if buildTestCache != nil {
+		buildTestCacheCancel()
+		buildTestCache.Close()
+	}
+	os.Exit(code)
+}
+
+func getCache(t *testing.T) *pkg.Cache {
+	t.Helper()
+	const env = "ROSA_BUILD_TEST_CACHE_DIR"
+
+	if !testing.Verbose() {
+		t.Skip("verbose flag not set")
+	}
+
+	buildTestCacheOnce.Do(func() {
+		if p, ok := os.LookupEnv(env); !ok {
+			skipBuildTest = true
+			return
+		} else if a, err := check.NewAbs(p); err != nil {
+			t.Fatal(err)
+		} else {
+			var ctx context.Context
+			ctx, buildTestCacheCancel = signal.NotifyContext(context.Background(),
+				syscall.SIGINT, syscall.SIGTERM)
+
+			msg := message.New(log.New(os.Stderr, "rosa: ", 0))
+			msg.SwapVerbose(true)
+
+			if buildTestCache, err = pkg.Open(ctx, msg, 0, a); err != nil {
+				t.Fatal(err)
+			}
+		}
+	})
+
+	if skipBuildTest {
+		t.Skip(env + " not set")
+	}
+	return buildTestCache
+}
+
+func TestCureAll(t *testing.T) {
+	cache := getCache(t)
+	t.Parallel()
+
+	for i := range rosa.PresetEnd {
+		p := rosa.PArtifact(i)
+		meta := rosa.GetMetadata(p)
+		a := rosa.Std.Load(p)
+		t.Run(meta.Name, func(t *testing.T) {
+			t.Parallel()
+
+			if pathname, _, err := cache.Cure(a); err != nil {
+				t.Fatal(err)
+			} else {
+				t.Log(pathname)
+			}
+		})
+	}
+}