add tests

Author: IanButterworth

test/loading.jl

@@ -77,6 +77,10 @@ mktempdir() do dir
             @test Base.isfile_casesensitive(true_filename)
             @test !Base.isfile_casesensitive(lowered_filename)
 
+            # check that case-sensitivity is preserved for relative paths
+            @test Base.isfile_casesensitive(joinpath("dummy", "..", true_filename))
+            @test !Base.isfile_casesensitive(joinpath("dummy", "..", lowered_filename))
+
             # check that case-sensitivity only applies to basename of a path:
             if isfile(lowered_filename) # case-insensitive filesystem
                 mkdir("cAsEtEsT")