fix version bounds, improve compat with v1.6

Project.toml

@@ -13,8 +13,8 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
-DocStringExtensions = "<1"
-julia = "1.9"
+DocStringExtensions = "0.8, 0.9"
+julia = "1.6"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"

docs/src/utilities.jl

@@ -84,7 +84,7 @@ mktempdir() do dir
     open(dest, "w") do f #src
         write(f, "olleh") #src
     end #src
-    @test_warn "different" A.download_data_file( #src
+    @test_logs (:warn, r".*") match_mode = :any A.download_data_file( #src
         url, #src
         dest, #src
         "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824", #src

src/utils.jl

@@ -22,7 +22,15 @@ function accessors()
     for nm in names(AbstractFBCModels; all = true)
         f = getfield(AbstractFBCModels, nm)
         if isa(f, Base.Callable)
-            methodswith(AbstractFBCModels.AbstractFBCModel, f, ms)
+            try
+                methodswith(AbstractFBCModels.AbstractFBCModel, f, ms)
+            catch
+                # Earlier versions of Julia tend to throw MethodErrors here
+                # whenever the method actually doesn't exist (e.g. 1.6.x
+                # reports that it's actually a missing `methodswith` method
+                # rather than the one of `f`. If that happens, we can simply do
+                # nothing.
+            end
         end
     end
     ms
@@ -36,7 +44,7 @@ Check if the file at `path` has the expected hash.
 function check_cached_file_hash(path, expected_checksum)
     actual_checksum = bytes2hex(sha256(open(path)))
     if actual_checksum != expected_checksum
-        @error "The downloaded data file `$path' seems to be different from the expected one. Tests will likely fail." actual_checksum expected_checksum
+        @warn "The downloaded data file `$path' seems to be different from the expected one. Tests will likely fail." actual_checksum expected_checksum
         @info "You can likely remove `$path' to force re-downloading."
     end
 end