[#857] golangci: Add testifylint linter

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

.golangci.yml

@@ -80,5 +80,6 @@ linters:
     - importas
     - truecloudlab-linters
     - perfsprint
+    - testifylint
   disable-all: true
   fast: false

pkg/local_object_storage/blobstor/internal/blobstortest/iterate.go

@@ -82,7 +82,7 @@ func runTestIgnoreLogicalErrors(t *testing.T, s common.Storage, objects []object
 
 		_, err := s.Iterate(context.Background(), iterPrm)
 		require.Equal(t, err, logicErr)
-		require.Equal(t, len(objects)/2, len(seen))
+		require.Len(t, seen, len(objects)/2)
 		for i := range objects {
 			d, ok := seen[objects[i].addr.String()]
 			if ok {

pkg/local_object_storage/writecache/writecachetest/flush.go

@@ -91,7 +91,7 @@ func TestFlush[Option any](
 
 				require.Equal(t, uint32(0), errCount.Load())
 				require.Error(t, wc.Flush(context.Background(), false))
-				require.True(t, errCount.Load() > 0)
+				require.Greater(t, errCount.Load(), uint32(0))
 				require.NoError(t, wc.Flush(context.Background(), true))
 
 				check(t, mb, bs, objects)