[#236] blobstor/test: Reduce test descriptions

I tried to add 4 more tests and suddenly, it became harder to navigate in
code. Move directory creation in a common function.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

pkg/local_object_storage/blobstor/perf_test.go

@@ -13,60 +13,65 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+type storage struct {
+	desc   string
+	create func(string) common.Storage
+}
+
+func (s storage) open(b *testing.B) common.Storage {
+	dir, err := os.MkdirTemp(os.TempDir(), s.desc)
+	if err != nil {
+		b.Fatalf("creating %s root path: %v", s.desc, err)
+	}
+	st := s.create(dir)
+
+	require.NoError(b, st.Open(false))
+	require.NoError(b, st.Init())
+
+	b.Cleanup(func() {
+		require.NoError(b, st.Close())
+		require.NoError(b, os.RemoveAll(dir))
+	})
+
+	return st
+}
+
 // The storages to benchmark. Each storage has a description and a function which returns the actual
 // storage along with a cleanup function.
-var storages = []struct {
+var storages = []storage{
-	desc   string
-	create func(*testing.B) (common.Storage, func())
-}{
 	{
 		desc: "memstore",
-		create: func(*testing.B) (common.Storage, func()) {
+		create: func(string) common.Storage {
-			return memstore.New(), func() {}
+			return memstore.New()
 		},
 	},
 	{
 		desc: "fstree_nosync",
-		create: func(b *testing.B) (common.Storage, func()) {
+		create: func(dir string) common.Storage {
-			dir, err := os.MkdirTemp(os.TempDir(), "fstree_nosync")
-			if err != nil {
-				b.Fatalf("creating fstree_nosync root path: %v", err)
-			}
-			cleanup := func() { os.RemoveAll(dir) }
 			return fstree.New(
 				fstree.WithPath(dir),
 				fstree.WithDepth(2),
 				fstree.WithDirNameLen(2),
 				fstree.WithNoSync(true),
-			), cleanup
+			)
 		},
 	},
 	{
 		desc: "fstree",
-		create: func(b *testing.B) (common.Storage, func()) {
+		create: func(dir string) common.Storage {
-			dir, err := os.MkdirTemp(os.TempDir(), "fstree")
-			if err != nil {
-				b.Fatalf("creating fstree root path: %v", err)
-			}
-			cleanup := func() { os.RemoveAll(dir) }
 			return fstree.New(
 				fstree.WithPath(dir),
 				fstree.WithDepth(2),
 				fstree.WithDirNameLen(2),
-			), cleanup
+			)
 		},
 	},
 	{
 		desc: "blobovniczatree",
-		create: func(b *testing.B) (common.Storage, func()) {
+		create: func(dir string) common.Storage {
-			dir, err := os.MkdirTemp(os.TempDir(), "blobovniczatree")
-			if err != nil {
-				b.Fatalf("creating blobovniczatree root path: %v", err)
-			}
-			cleanup := func() { os.RemoveAll(dir) }
 			return blobovniczatree.NewBlobovniczaTree(
 				blobovniczatree.WithRootPath(dir),
-			), cleanup
+			)
 		},
 	},
 }
@@ -95,10 +100,7 @@ func BenchmarkSubstorageReadPerf(b *testing.B) {
 		for _, stEntry := range storages {
 			b.Run(fmt.Sprintf("%s-%s", stEntry.desc, tt.desc), func(b *testing.B) {
 				objGen := tt.objGen()
-				st, cleanup := stEntry.create(b)
+				st := stEntry.open(b)
-
-				require.NoError(b, st.Open(false))
-				require.NoError(b, st.Init())
 
 				// Fill database
 				for i := 0; i < tt.size; i++ {
@@ -123,9 +125,6 @@ func BenchmarkSubstorageReadPerf(b *testing.B) {
 						require.NoError(b, err)
 					}
 				})
-
-				require.NoError(b, st.Close())
-				cleanup()
 			})
 		}
 	}
@@ -150,10 +149,7 @@ func BenchmarkSubstorageWritePerf(b *testing.B) {
 		for _, stEntry := range storages {
 			b.Run(fmt.Sprintf("%s-%s", stEntry.desc, genEntry.desc), func(b *testing.B) {
 				gen := genEntry.create()
-				st, cleanup := stEntry.create(b)
+				st := stEntry.open(b)
-
-				require.NoError(b, st.Open(false))
-				require.NoError(b, st.Init())
 
 				b.ResetTimer()
 				b.RunParallel(func(pb *testing.PB) {
@@ -170,9 +166,6 @@ func BenchmarkSubstorageWritePerf(b *testing.B) {
 						}
 					}
 				})
-
-				require.NoError(b, st.Close())
-				cleanup()
 			})
 		}
 	}
@@ -194,10 +187,7 @@ func BenchmarkSubstorageIteratePerf(b *testing.B) {
 		for _, stEntry := range storages {
 			b.Run(fmt.Sprintf("%s-%s", stEntry.desc, tt.desc), func(b *testing.B) {
 				objGen := tt.objGen()
-				st, cleanup := stEntry.create(b)
+				st := stEntry.open(b)
-
-				require.NoError(b, st.Open(false))
-				require.NoError(b, st.Init())
 
 				// Fill database
 				for i := 0; i < tt.size; i++ {
@@ -224,10 +214,6 @@ func BenchmarkSubstorageIteratePerf(b *testing.B) {
 				})
 				require.NoError(b, err)
 				require.Equal(b, tt.size, cnt)
-				b.StopTimer()
-
-				require.NoError(b, st.Close())
-				cleanup()
 			})
 		}
 	}