Updated expected test1 output which should have been included in commit fd9b3b2.

tests/test1.expected

@@ -38,6 +38,8 @@ after del_idx(0,1)=0, my_array.to_string()=[ ]
 after del_idx(0,1)=-1, my_array.to_string()=[ ]
 after del_idx(0,7)=0, my_array.to_string()=[ ]
 after del_idx(0,8)=-1, my_array.to_string()=[ 1, 2, 3, 4, 5, null, 7 ]
+after del_idx(0,6)=0, my_array.to_string()=[ 7 ]
+after adding more entries, my_array.to_string()=[ 7, "s1", "s2", "s3" ]
 my_array=
 	[0]=3
 	[1]=1

tests/test1Formatted_plain.expected

@@ -38,6 +38,8 @@ after del_idx(0,1)=0, my_array.to_string()=[]
 after del_idx(0,1)=-1, my_array.to_string()=[]
 after del_idx(0,7)=0, my_array.to_string()=[]
 after del_idx(0,8)=-1, my_array.to_string()=[1,2,3,4,5,null,7]
+after del_idx(0,6)=0, my_array.to_string()=[7]
+after adding more entries, my_array.to_string()=[7,"s1","s2","s3"]
 my_array=
 	[0]=3
 	[1]=1

tests/test1Formatted_pretty.expected

@@ -44,6 +44,8 @@ after del_idx(0,1)=0, my_array.to_string()=[]
 after del_idx(0,1)=-1, my_array.to_string()=[]
 after del_idx(0,7)=0, my_array.to_string()=[]
 after del_idx(0,8)=-1, my_array.to_string()=[1,2,3,4,5,null,7]
+after del_idx(0,6)=0, my_array.to_string()=[7]
+after adding more entries, my_array.to_string()=[7,"s1","s2","s3"]
 my_array=
 	[0]=3
 	[1]=1

tests/test1Formatted_spaced.expected

@@ -38,6 +38,8 @@ after del_idx(0,1)=0, my_array.to_string()=[]
 after del_idx(0,1)=-1, my_array.to_string()=[]
 after del_idx(0,7)=0, my_array.to_string()=[]
 after del_idx(0,8)=-1, my_array.to_string()=[1,2,3,4,5,null,7]
+after del_idx(0,6)=0, my_array.to_string()=[7]
+after adding more entries, my_array.to_string()=[7,"s1","s2","s3"]
 my_array=
 	[0]=3
 	[1]=1