Fix dict tree splitting bug (#93)

* Fix dict tree splitting bug

* add some tests and fix

Project.toml

@@ -1,7 +1,7 @@
 name = "Zarr"
 uuid = "0a941bbe-ad1d-11e8-39d9-ab76183a1d99"
 authors = ["Fabian Gans <[email protected]>"]
-version = "0.7.2"
+version = "0.7.3"
 
 [deps]
 AWS = "fbe9abb3-538b-5e4e-ba9e-bc94f4f92ebc"

src/Storage/dictstore.jl

@@ -5,7 +5,10 @@ end
 DictStore() = DictStore(Dict{String,Vector{UInt8}}())
 
 Base.show(io::IO,d::DictStore) = print(io,"Dictionary Storage")
-_pdict(d::DictStore,p) = filter(((k,v),)->startswith(k,p),d.a)
+function _pdict(d::DictStore,p) 
+  p = (isempty(p) || endswith(p,'/')) ? p : p*'/'
+  filter(((k,v),)->startswith(k,p),d.a)
+end
 function storagesize(d::DictStore,p) 
   sum(i->last(split(i[1],'/')) ∉ (".zattrs",".zarray") ? sizeof(i[2]) : zero(sizeof(i[2])), _pdict(d,p))
 end

test/storage.jl

@@ -42,6 +42,11 @@ function test_store_common(ds)
   @test !Zarr.isinitialized(ds,"bar",CartesianIndex((0,0,0)))
   @test !Zarr.isinitialized(ds,"bar/0.0.0")
   ds["bar/0.0.0"] = data
+  #Add tests for empty storage
+  @test Zarr.isemptysub(ds,"ba")
+  @test Zarr.isemptysub(ds,"ba/")
+  @test !Zarr.isemptysub(ds,"bar")
+  @test !Zarr.isemptysub(ds,"bar/")
 end
 
 @testset "DirectoryStore" begin
@@ -101,7 +106,7 @@ end
   chunks = (5,10)
   metadata = Zarr.Metadata(A, chunks; fill_value=-1.5)
   using Minio
-  if !isempty(Minio.getexe())
+  if !isnothing(Minio.minio())
     s = Minio.Server(joinpath("./",tempname()), address="localhost:9001")
     run(s, wait=false)
     cfg = MinioConfig("http://localhost:9001")