The Tech Help You Need

[Eric Willigers <ewilligers@xxxxxxxxx>]

steve.bendiola wrote:
> 
> I was going to update the wiki with the different ways to access/modify
> maps, but I don't understand why the last line in this code sample fails:
> 
> val map = new scala.collection.mutable.HashMap[String, Any]
>             
> map("likes") = "cheese"
> assume( map.get("likes") == Some("cheese") )
> assume( map("likes") == "cheese")
>       
> assume( map.get("fakeKey") == None)
> 
> map += "name" -> "Gromit"
> assume( map("name") == "Gromit")
> 
> map += "id" -> 1234
> assume( map.get("id") == Some(1234) )
> assume(map.get("id") == 1234, "map.get(id) == 1234 failed" )
> 

Replace the last line with
assume(map("id") == 1234)

This is equivalent to
assume(map.apply("id") == 1234)

map.get("id") returns Some(1234), and Some(1234) != 1234

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