Add new tests for count() function

Author: lgualtieri75

testing/agg-functions.test

@@ -47,6 +47,42 @@ do_execsql_test select-count-constant-false {
   SELECT count(*) FROM users WHERE false;
 } {0}
 
+do_execsql_test select-count-star {
+  SELECT count(*) FROM counter;
+} {10}
+
+do_execsql_test select-count-field-t {
+  SELECT count(t) FROM counter;
+} {9}
+
+do_execsql_test select-count-field-i {
+  SELECT count(i) FROM counter;
+} {9}
+
+do_execsql_test select-count-field-r {
+  SELECT count(r) FROM counter;
+} {9}
+
+do_execsql_test select-count-field-b {
+  SELECT count(b) FROM counter;
+} {9}
+
+do_execsql_test select-count-field-t-distinct {
+  SELECT count(distinct t) FROM counter;
+} {3}
+
+do_execsql_test select-count-field-i-distinct {
+  SELECT count(distinct i) FROM counter;
+} {3}
+
+do_execsql_test select-count-field-r-distinct {
+  SELECT count(distinct r) FROM counter;
+} {3}
+
+do_execsql_test select-count-field-b-distinct {
+  SELECT count(distinct b) FROM counter;
+} {3}
+
 do_execsql_test select-max {
   SELECT max(age) FROM users;
 } {100}

testing/cmdlineshell.test

@@ -22,7 +22,14 @@ CREATE TABLE products (
         name TEXT,
         price REAL
     );
-CREATE INDEX age_idx on users (age);"}
+CREATE INDEX age_idx on users (age);
+CREATE TABLE counter (
+        id INTEGER PRIMARY KEY,
+        t TEXT,
+        r REAL,
+        i INTEGER,
+        b BLOB
+    );"}
 
 # FIXME sqlite does something different with .schema than what we are doing
 #do_execsql_test_on_specific_db testing/testing_norowidalias.db schema {
@@ -100,3 +107,13 @@ do_execsql_test_on_specific_db testing/testing.db schema-2 {
 # do_execsql_test_on_specific_db testing/testing.db schema-1 {
 #   .tables
 # } {"products users"}
+
+ do_execsql_test_on_specific_db testing/testing.db schema-3 {
+   .schema counter
+ } {"CREATE TABLE counter (
+        id INTEGER PRIMARY KEY,
+        t TEXT,
+        r REAL,
+        i INTEGER,
+        b BLOB
+    );"}

testing/gen-database.py

@@ -57,7 +57,30 @@
         VALUES (?, ?)
     ''', (product, price))
 
+cursor.execute('''
+    CREATE TABLE IF NOT EXISTS counter (
+        id INTEGER PRIMARY KEY,
+        t TEXT,
+        r REAL,
+        i INTEGER,
+        b BLOB
+    )
+''')
+
+for _ in range(3):
+    cursor.execute('''
+        INSERT INTO counter (t, r, i, b) VALUES ('ONE', 1, 1, 'ONE')
+    ''')
+    cursor.execute('''
+        INSERT INTO counter (t, r, i, b) VALUES ('TWO', 2, 2, 'TWO');
+    ''')
+    cursor.execute('''
+        INSERT INTO counter (t, r, i, b) VALUES ('THREE', 3, 3, 'THREE');
+    ''')
 
+cursor.execute('''
+    INSERT INTO counter (t, r, i, b) VALUES (NULL, NULL, NULL, NULL);
+''')
 
 conn.commit()
 conn.close()