Fix and test default custom_tests value.

Author: maleadt

src/ParallelTestRunner.jl

@@ -272,7 +272,7 @@ Workers are automatically recycled when they exceed memory limits to prevent out
 issues during long test runs. The memory limit is set based on system architecture.
 """
 function runtests(ARGS; testfilter = Returns(true), RecordType = TestRecord,
-                  custom_tests::Dict{String}=Dict{String}(), init_code = :())
+                  custom_tests::Dict{String, Expr}=Dict{String, Expr}(), init_code = :())
     do_help, _ = extract_flag!(ARGS, "--help")
     if do_help
         println(

test/runtests.jl

@@ -7,10 +7,11 @@ init_code = quote
     should_be_defined() = true
 end
 
+runtests(ARGS; init_code)
+
 custom_tests = Dict(
     "custom" => quote
         @test should_be_defined()
     end
 )
-
 runtests(ARGS; init_code, custom_tests)