slightly better doctests for islocked

Author: Krastanov

src/resources/containers.jl

@@ -77,7 +77,10 @@ isready(c::Container) = c.level > 0
 Returns `true` if the store is full, similarly to the meaning of `islocked` for `Base.ReentrantLock`.
 
 ```jldoctest
-julia> sim = Simulation(); res = Resource(sim); islocked(res)
+julia> sim = Simulation(); res = Resource(sim, 2); islocked(res)
+false
+
+julia> request(res); islocked(res)
 false
 
 julia> request(res); islocked(res)

src/resources/stores.jl

@@ -88,10 +88,13 @@ isready(sto::Store) = sto.load > 0
 Returns `true` if the store is full, similarly to the meaning of `islocked` for `Base.ReentrantLock`.
 
 ```jldoctest
-julia> sim = Simulation(); store = Store{Symbol}(sim; capacity=1); islocked(store)
+julia> sim = Simulation(); store = Store{Symbol}(sim; capacity=2); islocked(store)
 false
 
 julia> put!(store, :message); islocked(store)
+false
+
+julia> put!(store, :another_message); islocked(store)
 true
 ```
 """