Added runtests.jl test file.

test/runtests.jl

@@ -0,0 +1,57 @@
+### -*- Mode: Julia -*-
+
+### runtests.jl
+###
+### Standard file for automated testing.
+
+using JLCL
+
+### Start with hand weaved code.
+
+
+println("JLCL.jl: testing.")
+
+if @in_module @__MODULE__
+    println("JLCL.jl: testing for module ",
+            @__MODULE__,
+            " passed.")
+else
+    println("JLCL.jl: testing for module @__MODULE__ failed.")
+end
+
+
+if @in_module JLCL
+    println("JLCL.jl: testing for module JLCL wrongly passed.")
+else
+    println("JLCL.jl: testing for module JLCL rightly failed.")
+end
+
+
+if @in_module 42
+    println("JLCL.jl: testing for module `42` wrongly passed.")
+else
+    println("JLCL.jl: testing for module `42` rightly failed")
+    println("JLCL.jl: with a warning.")
+end
+
+
+
+### Next we use the testing framework properly (note that the macro
+### calls must be parenthesized to avoid confounding `@test`.
+
+module JLCL_testing
+
+using JLCL
+using Test
+
+@test (@in_module JLCL_testing)
+
+@test (! @in_module Main)
+
+@test (! @in_module 42)
+
+@test_throws UndefVarError (@in_module FooBar)
+
+end
+
+### runtests.jl ends here.