expand tests

Author: IanButterworth

test/file.jl

@@ -36,9 +36,27 @@ end
     mktempdir() do dir
         touch(joinpath(dir, "afile.txt"))
         mkdir(joinpath(dir, "adir"))
+        touch(joinpath(dir, "adir", "bfile.txt"))
         @test length(readdir(dir)) == 2
         @test readdir(dir) == map(e->e.name, readdir(DirEntry, dir))
         @test readdir(DirEntry, dir) == readdir(DirEntry(dir))
+        for p in readdir(dir, join=true)
+            if isdir(p)
+                @test only(readdir(p)) == "bfile.txt"
+            else
+                @test isfile(p)
+                @test p == joinpath(dir, "afile.txt")
+            end
+        end
+        for e in readdir(DirEntry, dir)
+            if isdir(e) || continue
+                @test only(readdir(e)).name == "bfile.txt"
+                @test only(readdir(DirEntry, e)).name == "bfile.txt"
+            else
+                @test isfile(e)
+                @test e.name == "afile.txt"
+            end
+        end
     end
 end