TrekSetCourseTest fails with Cannot get property 'position' on null object

[TerryEbdon]

Looks like this was broken by commit 5c8f673 for issue #26. The broken tests will be reimplemented in a new test class, as part of #59. TrekSetCourseTest will be updated to reflect current behaviour of Trek.groovy.

testBadCourse

java.lang.NullPointerException: Cannot get property 'position' on null object
	at org.codehaus.groovy.runtime.NullObject.getProperty(NullObject.java:62)
	at org.codehaus.groovy.runtime.InvokerHelper.getProperty(InvokerHelper.java:167)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:336)
	at net.ebdon.trk21.Trek.setCourse(Trek.groovy:150)
	at net.ebdon.trk21.Trek$setCourse.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:130)
	at net.ebdon.trk21.TrekSetCourseTest.testBadCourse(TrekSetCourseTest.groovy:139)

testBadWarpfactor

java.lang.NullPointerException: Cannot get property 'position' on null object
	at org.codehaus.groovy.runtime.NullObject.getProperty(NullObject.java:62)
	at org.codehaus.groovy.runtime.InvokerHelper.getProperty(InvokerHelper.java:167)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:336)
	at net.ebdon.trk21.Trek.setCourse(Trek.groovy:150)
	at net.ebdon.trk21.Trek$setCourse.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:130)
	at net.ebdon.trk21.TrekSetCourseTest.testBadWarpfactor(TrekSetCourseTest.groovy:149)