Improve CallByName unit test

- add method call tests
- check for return values: array or not

cf. https://bugs.documentfoundation.org/show_bug.cgi?id=138155
    https://bugs.documentfoundation.org/show_bug.cgi?id=149151

Change-Id: I15f8214ef68e059ecf48bd606a0754adc845aae9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/199286
Reviewed-by: Alain Romedenne <alain.romedenne@libreoffice.org>
Tested-by: Jenkins

basic/qa/basic_coverage/test_CallByName.bas

@@ -7,6 +7,8 @@
 
 Option Explicit
 
+Sub DEV : MsgBox doUnitTest : End Sub
+
 Function doUnitTest() As String
     TestUtil.TestInit
     verify_CallByName
@@ -15,6 +17,8 @@ End Function
 
 Sub verify_CallByName()
     Const _Get = 2, _Let = 4, _Method = 1, _Set = 8
+    Dim c As New Collection
+    Dim THIS_MODULE As Object : THIS_MODULE = TestModule ' cf. basic/qa/cppunit/basic_coverage.cxx
 
     On Error GoTo errorHandler
 
@@ -23,21 +27,30 @@ Sub verify_CallByName()
     TestUtil.AssertEqual(CallByName(TestUtil, "passCount", _Get), 1, "CallByName(TestUtil, ""passCount"", _Get")
     TestUtil.AssertEqual(CallByName(TestUtil, "GetResult", _Method), "OK", "CallByName(TestUtil, ""GetResult"", _Method")
 
-    ' Collection instances
-    Dim c As New Collection
-    c.Add(100, "1st") : c.Add(101)
-    TestUtil.AssertEqual(CallByName(c,"Count", _Get), 2, "CallByName(c,""Count"", _Get)")
-    c.Remove(2)
+    c.Add(100, "1st")
+    c.Add(Array(7,8,9))
+    TestUtil.AssertEqual(CallByName(c,"Count", _Get),2, "CallByName(c,""Count"", _Get)")
+    c.Remove(2) ' remove 2nd item, 1 item left
+    ' Let's check CallByName argument names
     TestUtil.AssertEqual(CallByName(callType:=_Get, object:=c, procName:="Count"), 1, _
         "CallByName(callType:=_Get, object:=c, procName:=""Count"")")
 
+_tdf138155_:
+    TestUtil.AssertEqual(CallByName(THIS_MODULE,"setArray", _Method)(3), "fox…", _
+        "CallByName(THIS_MODULE,""setArray"", _Method)")
+
     ' ClassModule instances or UNO services are 'CallByNamable' objects too!
     ' see https://help.libreoffice.org/7.4/en-US/text/sbasic/shared/CallByName.html?DbPAR=BASIC#bm_id3150669
     ' for more _Let and _Set examples
 
     Exit Sub
+
 errorHandler:
     TestUtil.ReportErrorHandler("verify_CallByName", Err, Error$, Erl)
     Resume Next
-    
-End Sub
+
+End Sub
+
+Function setArray() ' as String[]
+    setArray = Split("The quick brown fox…", " ")
+End Function