Add regression tests for NULL checks to spherepoly_rad() and spherepoly_deg().

Author: esabol

expected/poly.out

@@ -349,6 +349,8 @@ LINE 1: SELECT spoly '{(10d,0d),(10d,1d)}';
                      ^
 SELECT spoly(ARRAY[1.0, 2.0, 3.0, 4.0, 5.0]);
 ERROR:  spherepoly_rad: invalid number of arguments (must be even and >= 6)
+SELECT spoly(ARRAY[1.0, 2.0, 3.0, NULL, 5.0, 6.0]);
+ERROR:  spherepoly_rad: invalid array has null values
 SELECT spoly(ARRAY[]::float8[]);
 ERROR:  spherepoly_rad: invalid number of arguments (must be even and >= 6)
 SELECT spoly(NULL::float8[]);
@@ -359,6 +361,8 @@ SELECT spoly(NULL::float8[]);
 
 SELECT spoly_deg(ARRAY[1.0, 2.0, 3.0, 4.0, 5.0]);
 ERROR:  spherepoly_deg: invalid number of arguments (must be even and >= 6)
+SELECT spoly_deg(ARRAY[1.0, 2.0, 3.0, NULL, 5.0, 6.0]);
+ERROR:  spherepoly_deg: invalid array has null values
 SELECT spoly_deg(ARRAY[]::float8[]);
 ERROR:  spherepoly_deg: invalid number of arguments (must be even and >= 6)
 SELECT spoly_deg(NULL::float8[]);

sql/poly.sql

@@ -92,12 +92,16 @@ SELECT spoly '{(10d,0d),(10d,1d)}';
 
 SELECT spoly(ARRAY[1.0, 2.0, 3.0, 4.0, 5.0]);
 
+SELECT spoly(ARRAY[1.0, 2.0, 3.0, NULL, 5.0, 6.0]);
+
 SELECT spoly(ARRAY[]::float8[]);
 
 SELECT spoly(NULL::float8[]);
 
 SELECT spoly_deg(ARRAY[1.0, 2.0, 3.0, 4.0, 5.0]);
 
+SELECT spoly_deg(ARRAY[1.0, 2.0, 3.0, NULL, 5.0, 6.0]);
+
 SELECT spoly_deg(ARRAY[]::float8[]);
 
 SELECT spoly_deg(NULL::float8[]);