Variables should have a name in the model + refactore a little the tests

I plan to add tests on the future local resolver and this will help

Author: jecisc

src/FAST-Python-Model/FASTPyModel.class.st

@@ -39,3 +39,11 @@ FASTPyModel >> allModules [
 
 	^ self allWithType: FASTPyModule
 ]
+
+{ #category : 'accessing' }
+FASTPyModel >> module [
+	"In general a fast python model can only get one module so I return this module."
+
+	self assert: self allModules size = 1.
+	^ self allModules anyOne
+]

src/FAST-Python-Tools-Tests/FASTPythonAbstractTestCase.class.st

@@ -0,0 +1,14 @@
+Class {
+	#name : 'FASTPythonAbstractTestCase',
+	#superclass : 'TestCase',
+	#category : 'FAST-Python-Tools-Tests',
+	#package : 'FAST-Python-Tools-Tests'
+}
+
+{ #category : 'running' }
+FASTPythonAbstractTestCase >> parse: aString [
+
+	^ FASTPythonImporter new
+		  errorReportBlock: [ :i | i errors ifNotEmpty: [ self fail: 'Errors happened during parsing. Errors: ' , i errors printString ] ];
+		  parse: aString withPlatformLineEndings
+]

src/FAST-Python-Tools-Tests/FASTPythonCFGTest.class.st

@@ -1,6 +1,6 @@
 Class {
 	#name : 'FASTPythonCFGTest',
-	#superclass : 'TestCase',
+	#superclass : 'FASTPythonAbstractTestCase',
 	#instVars : [
 		'startBlock'
 	],
@@ -14,14 +14,6 @@ FASTPythonCFGTest >> buildCFGForFunction: aString [
 	startBlock := FASTPythonCFGVisitor buildCFGOf: (self parse: aString) allFunctionDefinitions first
 ]
 
-{ #category : 'running' }
-FASTPythonCFGTest >> parse: aString [
-
-	^ FASTPythonImporter new
-		  errorReportBlock: [ :i | i errors ifNotEmpty: [ self fail: 'Errors happened during parsing. Errors: ' , i errors printString ] ];
-		  parse: aString withPlatformLineEndings
-]
-
 { #category : 'tests' }
 FASTPythonCFGTest >> testCFGOfClass [