AI-generated tests for DELETE RETURNING

This commit is contained in:
Jussi Saurio
2025-11-13 11:16:01 +02:00
parent 272dadc4bc
commit b9b9a5ecab

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@@ -524,6 +524,383 @@ do_execsql_test_on_specific_db {:memory:} update-returning-row-values {
UPDATE t SET (id, name) = (2, 'mordor') RETURNING id, name;
} {2|mordor}
# ============================================================================
# DELETE RETURNING tests
# ============================================================================
# Basic column references
do_execsql_test_on_specific_db {:memory:} delete-returning-single-column {
CREATE TABLE t (id INTEGER, name TEXT, value REAL);
INSERT INTO t VALUES (1, 'test', 10.5);
DELETE FROM t WHERE id = 1 RETURNING id;
} {1}
do_execsql_test_on_specific_db {:memory:} delete-returning-multiple-columns {
CREATE TABLE t (id INTEGER, name TEXT, value REAL);
INSERT INTO t VALUES (1, 'test', 10.5);
DELETE FROM t WHERE id = 1 RETURNING id, name;
} {1|test}
do_execsql_test_on_specific_db {:memory:} delete-returning-all-columns {
CREATE TABLE t (id INTEGER, name TEXT, value REAL);
INSERT INTO t VALUES (1, 'test', 10.5);
DELETE FROM t WHERE id = 1 RETURNING *;
} {1|test|10.5}
# Table-qualified column references
do_execsql_test_on_specific_db {:memory:} delete-returning-table-qualified {
CREATE TABLE t (id INTEGER, name TEXT);
INSERT INTO t VALUES (1, 'test');
DELETE FROM t WHERE id = 1 RETURNING t.id, t.name;
} {1|test}
# Arbitrary expressions not referencing columns
do_execsql_test_on_specific_db {:memory:} delete-returning-literal {
CREATE TABLE t (id INTEGER);
INSERT INTO t VALUES (1);
DELETE FROM t WHERE id = 1 RETURNING 42;
} {42}
do_execsql_test_on_specific_db {:memory:} delete-returning-constant-expression {
CREATE TABLE t (id INTEGER);
INSERT INTO t VALUES (1);
DELETE FROM t WHERE id = 1 RETURNING 2 + 3 * 4;
} {14}
# Expressions referencing deleted columns
do_execsql_test_on_specific_db {:memory:} delete-returning-column-arithmetic {
CREATE TABLE t (id INTEGER, value INTEGER);
INSERT INTO t VALUES (1, 10);
DELETE FROM t WHERE id = 1 RETURNING 2 * value;
} {20}
do_execsql_test_on_specific_db {:memory:} delete-returning-complex-expression {
CREATE TABLE t (id INTEGER, x INTEGER, y INTEGER);
INSERT INTO t VALUES (1, 5, 3);
DELETE FROM t WHERE id = 1 RETURNING x + y * 2;
} {11}
do_execsql_test_on_specific_db {:memory:} delete-returning-function-call {
CREATE TABLE t (id INTEGER, name TEXT);
INSERT INTO t VALUES (1, 'hello');
DELETE FROM t WHERE id = 1 RETURNING upper(name);
} {HELLO}
do_execsql_test_on_specific_db {:memory:} delete-returning-mixed-expressions {
CREATE TABLE t (id INTEGER, name TEXT, value INTEGER);
INSERT INTO t VALUES (1, 'test', 10);
DELETE FROM t WHERE id = 1 RETURNING id, upper(name), value * 3;
} {1|TEST|30}
# Multiple rows deleted
do_execsql_test_on_specific_db {:memory:} delete-returning-multiple-rows {
CREATE TABLE t (id INTEGER, name TEXT);
INSERT INTO t VALUES (1, 'first'), (2, 'second'), (3, 'third');
DELETE FROM t RETURNING id, name;
} {1|first
2|second
3|third}
do_execsql_test_on_specific_db {:memory:} delete-returning-multiple-rows-expressions {
CREATE TABLE t (id INTEGER, value INTEGER);
INSERT INTO t VALUES (1, 10), (2, 20), (3, 30);
DELETE FROM t RETURNING id, value * 2;
} {1|20
2|40
3|60}
# NULL handling
do_execsql_test_on_specific_db {:memory:} delete-returning-null-values {
CREATE TABLE t (id INTEGER, name TEXT, value INTEGER);
INSERT INTO t VALUES (1, NULL, NULL);
DELETE FROM t WHERE id = 1 RETURNING id, name, value;
} {1||}
do_execsql_test_on_specific_db {:memory:} delete-returning-null-expression {
CREATE TABLE t (id INTEGER, name TEXT);
INSERT INTO t VALUES (1, NULL);
DELETE FROM t WHERE id = 1 RETURNING coalesce(name, 'default');
} {default}
# Rowid
do_execsql_test_on_specific_db {:memory:} delete-returning-rowid {
CREATE TABLE t (name TEXT);
INSERT INTO t VALUES ('test');
DELETE FROM t RETURNING rowid, name;
} {1|test}
do_execsql_test_on_specific_db {:memory:} delete-returning-rowid-expression {
CREATE TABLE t (name TEXT);
INSERT INTO t VALUES ('test');
DELETE FROM t RETURNING rowid * 2;
} {2}
# WHERE clause filtering
do_execsql_test_on_specific_db {:memory:} delete-returning-with-where {
CREATE TABLE t (id INTEGER, name TEXT);
INSERT INTO t VALUES (1, 'a'), (2, 'b'), (3, 'c');
DELETE FROM t WHERE id > 1 RETURNING id, name;
} {2|b
3|c}
do_execsql_test_on_specific_db {:memory:} delete-returning-no-matches {
CREATE TABLE t (id INTEGER, name TEXT);
INSERT INTO t VALUES (1, 'test');
DELETE FROM t WHERE id = 999 RETURNING *;
} {}
# Expressions with string operations
do_execsql_test_on_specific_db {:memory:} delete-returning-string-concat {
CREATE TABLE t (id INTEGER, first TEXT, last TEXT);
INSERT INTO t VALUES (1, 'John', 'Doe');
DELETE FROM t WHERE id = 1 RETURNING first || ' ' || last;
} {"John Doe"}
do_execsql_test_on_specific_db {:memory:} delete-returning-substring {
CREATE TABLE t (id INTEGER, name TEXT);
INSERT INTO t VALUES (1, 'hello world');
DELETE FROM t WHERE id = 1 RETURNING substr(name, 1, 5);
} {hello}
# Case expressions
do_execsql_test_on_specific_db {:memory:} delete-returning-case-expression {
CREATE TABLE t (id INTEGER, value INTEGER);
INSERT INTO t VALUES (1, 5);
DELETE FROM t WHERE id = 1 RETURNING CASE WHEN value > 10 THEN 'high' WHEN value > 0 THEN 'low' ELSE 'zero' END;
} {low}
# Nested expressions
do_execsql_test_on_specific_db {:memory:} delete-returning-nested-expressions {
CREATE TABLE t (id INTEGER, x INTEGER, y INTEGER, z INTEGER);
INSERT INTO t VALUES (1, 2, 3, 4);
DELETE FROM t WHERE id = 1 RETURNING (x + y) * (z - 1);
} {15}
# ============================================================================
# DELETE RETURNING NASTY EDGE CASES
# ============================================================================
# Multiple references to same column in RETURNING
do_execsql_test_on_specific_db {:memory:} delete-returning-multiple-column-references {
CREATE TABLE t (id INTEGER PRIMARY KEY, x INTEGER);
INSERT INTO t VALUES (1, 10), (2, 20), (3, 30);
DELETE FROM t WHERE id = 2 RETURNING x, x * 2, x + x;
} {20|40|40}
# Column aliases in RETURNING
do_execsql_test_on_specific_db {:memory:} delete-returning-column-aliases {
CREATE TABLE t (id INTEGER PRIMARY KEY, x INTEGER, y INTEGER);
INSERT INTO t VALUES (1, 1, 2), (2, 3, 4);
DELETE FROM t WHERE x = 1 RETURNING x AS deleted_x, y AS deleted_y, x + y AS sum;
} {1|2|3}
# Complex WHERE clauses with IN
do_execsql_test_on_specific_db {:memory:} delete-returning-where-in {
CREATE TABLE t (id INTEGER PRIMARY KEY, val INTEGER);
INSERT INTO t VALUES (1, 1), (2, 2), (3, 3);
DELETE FROM t WHERE val IN (1, 3) RETURNING *;
} {1|1
3|3}
# Complex WHERE clauses with BETWEEN
do_execsql_test_on_specific_db {:memory:} delete-returning-where-between {
CREATE TABLE t (id INTEGER PRIMARY KEY, x INTEGER, y INTEGER);
INSERT INTO t VALUES (1, 1, 10), (2, 2, 20), (3, 3, 30);
DELETE FROM t WHERE x BETWEEN 1 AND 2 RETURNING id, x, y, x + y;
} {1|1|10|11
2|2|20|22}
# Complex WHERE clauses with LIKE
do_execsql_test_on_specific_db {:memory:} delete-returning-where-like {
CREATE TABLE t (id INTEGER PRIMARY KEY, name TEXT);
INSERT INTO t VALUES (1, 'Alice'), (2, 'Bob'), (3, 'Charlie');
DELETE FROM t WHERE name LIKE 'B%' RETURNING *;
} {2|Bob}
# Complex WHERE clauses with AND/OR
do_execsql_test_on_specific_db {:memory:} delete-returning-where-complex {
CREATE TABLE t (id INTEGER PRIMARY KEY, x INTEGER);
INSERT INTO t VALUES (1, 5), (2, 10), (3, 15);
DELETE FROM t WHERE x > 5 AND x < 15 RETURNING id, x, x * x, x + x + x;
} {2|10|100|30}
# WHERE clause with modulo operator
do_execsql_test_on_specific_db {:memory:} delete-returning-where-modulo {
CREATE TABLE t (id INTEGER PRIMARY KEY, name TEXT, val INTEGER);
INSERT INTO t VALUES (1, 'a', 1), (2, 'b', 2), (3, 'c', 3);
DELETE FROM t WHERE val % 2 = 0 RETURNING id, name, val, length(name), abs(val);
} {2|b|2|1|2}
# WHERE clause with subquery (correlated) - NOT SUPPORTED YET
# do_execsql_test_on_specific_db {:memory:} delete-returning-where-subquery {
# CREATE TABLE t (id INTEGER PRIMARY KEY, x INTEGER);
# INSERT INTO t VALUES (1, 1), (2, 2), (3, 3);
# DELETE FROM t WHERE x = (SELECT MAX(x) FROM t) RETURNING *;
# } {3|3}
# WHERE clause with IN subquery - NOT SUPPORTED YET
# do_execsql_test_on_specific_db {:memory:} delete-returning-where-in-subquery {
# CREATE TABLE t (id INTEGER PRIMARY KEY, a INTEGER, b INTEGER);
# INSERT INTO t VALUES (1, 1, 2), (2, 3, 4), (3, 5, 6);
# DELETE FROM t WHERE a IN (SELECT a FROM t WHERE a > 3) RETURNING *;
# } {3|5|6}
# WHERE clause that matches nothing
do_execsql_test_on_specific_db {:memory:} delete-returning-where-false {
CREATE TABLE t (id INTEGER PRIMARY KEY, name TEXT);
INSERT INTO t VALUES (1, 'test');
DELETE FROM t WHERE 1=0 RETURNING *;
} {}
# Rowid and INTEGER PRIMARY KEY together
do_execsql_test_on_specific_db {:memory:} delete-returning-rowid-and-pk {
CREATE TABLE t (id INTEGER PRIMARY KEY, name TEXT);
INSERT INTO t VALUES (1, 'a'), (2, 'b');
DELETE FROM t RETURNING rowid, id, name;
} {1|1|a
2|2|b}
# AUTOINCREMENT with RETURNING
do_execsql_test_on_specific_db {:memory:} delete-returning-autoincrement {
CREATE TABLE t (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT);
INSERT INTO t VALUES (NULL, 'a'), (NULL, 'b');
DELETE FROM t RETURNING id, name;
} {1|a
2|b}
# Type functions in RETURNING
do_execsql_test_on_specific_db {:memory:} delete-returning-typeof {
CREATE TABLE t (id INTEGER PRIMARY KEY, x REAL, y TEXT);
INSERT INTO t VALUES (1, 1.5, 'test'), (2, 2.5, 'foo');
DELETE FROM t RETURNING id, x, y, typeof(x), typeof(y);
} {1|1.5|test|real|text
2|2.5|foo|real|text}
# NULL handling with coalesce
do_execsql_test_on_specific_db {:memory:} delete-returning-null-coalesce {
CREATE TABLE t (id INTEGER PRIMARY KEY, val INTEGER);
INSERT INTO t VALUES (1, NULL), (2, 42), (3, NULL);
DELETE FROM t WHERE val IS NULL RETURNING id, val, coalesce(val, 999);
} {1||999
3||999}
# BLOB handling
do_execsql_test_on_specific_db {:memory:} delete-returning-blob {
CREATE TABLE t (id INTEGER PRIMARY KEY, val BLOB);
INSERT INTO t VALUES (1, zeroblob(10)), (2, x'0102');
DELETE FROM t RETURNING id, length(val), typeof(val);
} {1|10|blob
2|2|blob}
# printf function in RETURNING
do_execsql_test_on_specific_db {:memory:} delete-returning-printf {
CREATE TABLE t (id INTEGER PRIMARY KEY, name TEXT);
INSERT INTO t VALUES (1, 'hello'), (2, 'world');
DELETE FROM t WHERE name = 'hello' RETURNING printf('Deleted: %s', name);
} {"Deleted: hello"}
# Additional edge cases
do_execsql_test_on_specific_db {:memory:} delete-returning-empty-string-null {
CREATE TABLE t (id INTEGER PRIMARY KEY, name TEXT);
INSERT INTO t VALUES (1, 'hello'), (2, ''), (3, NULL);
DELETE FROM t RETURNING id, name, length(name), name IS NULL;
} {1|hello|5|0
2||0|0
3|||1}
do_execsql_test_on_specific_db {:memory:} delete-returning-string-concat-numbers {
CREATE TABLE t (id INTEGER PRIMARY KEY, x INTEGER, y INTEGER);
INSERT INTO t VALUES (1, 1, 2), (2, 3, 4);
DELETE FROM t WHERE x = 1 RETURNING x, y, x + y, x * y, x || y;
} {1|2|3|2|12}
do_execsql_test_on_specific_db {:memory:} delete-returning-round-precision {
CREATE TABLE t (id INTEGER PRIMARY KEY, val REAL);
INSERT INTO t VALUES (1, 1.23456789), (2, 9.999999);
DELETE FROM t RETURNING id, val, round(val, 2);
} {1|1.23456789|1.23
2|9.999999|10.0}
do_execsql_test_on_specific_db {:memory:} delete-returning-glob-pattern {
CREATE TABLE t (id INTEGER PRIMARY KEY, name TEXT);
INSERT INTO t VALUES (1, 'Alice'), (2, 'Bob'), (3, 'Charlie');
DELETE FROM t WHERE name GLOB '[BC]*' RETURNING *;
} {2|Bob
3|Charlie}
do_execsql_test_on_specific_db {:memory:} delete-returning-operator-precedence {
CREATE TABLE t (id INTEGER PRIMARY KEY, a INTEGER, b INTEGER, c INTEGER);
INSERT INTO t VALUES (1, 1, 2, 3), (2, 4, 5, 6);
DELETE FROM t RETURNING a, b, c, a + b * c, (a + b) * c;
} {1|2|3|7|9
4|5|6|34|54}
do_execsql_test_on_specific_db {:memory:} delete-returning-large-numbers {
CREATE TABLE t (id INTEGER PRIMARY KEY, val INTEGER);
INSERT INTO t VALUES (1, 999999999), (2, -999999999), (3, 0);
DELETE FROM t RETURNING id, val, val + 1, val * 2;
} {1|999999999|1000000000|1999999998
2|-999999999|-999999998|-1999999998
3|0|1|0}
do_execsql_test_on_specific_db {:memory:} delete-returning-nullif-coalesce {
CREATE TABLE t (id INTEGER PRIMARY KEY, name TEXT);
INSERT INTO t VALUES (1, 'test'), (2, 'test'), (3, 'other');
DELETE FROM t WHERE name = 'test' RETURNING id, name, NULLIF(name, 'test'), COALESCE(NULLIF(name, 'test'), 'was_test');
} {1|test||was_test
2|test||was_test}
do_execsql_test_on_specific_db {:memory:} delete-returning-iif-null-handling {
CREATE TABLE t (id INTEGER PRIMARY KEY, x INTEGER, y INTEGER);
INSERT INTO t VALUES (1, 5, 10), (2, NULL, 20), (3, 15, NULL);
DELETE FROM t RETURNING id, x, y, IIF(x IS NULL OR y IS NULL, 'has_null', x + y);
} {1|5|10|15
2||20|has_null
3|15||has_null}
do_execsql_test_on_specific_db {:memory:} delete-returning-string-functions {
CREATE TABLE t (id INTEGER PRIMARY KEY, name TEXT);
INSERT INTO t VALUES (1, 'hello'), (2, 'world');
DELETE FROM t RETURNING id, name, upper(name), lower(name), length(name);
} {1|hello|HELLO|hello|5
2|world|WORLD|world|5}
do_execsql_test_on_specific_db {:memory:} delete-returning-replace-function {
CREATE TABLE t (id INTEGER PRIMARY KEY, name TEXT);
INSERT INTO t VALUES (1, 'hello world'), (2, 'foo bar');
DELETE FROM t RETURNING id, name, replace(name, ' ', '_') AS replaced;
} {"1|hello world|hello_world
2|foo bar|foo_bar"}
do_execsql_test_on_specific_db {:memory:} delete-returning-abs-sign {
CREATE TABLE t (id INTEGER PRIMARY KEY, val INTEGER);
INSERT INTO t VALUES (1, 42), (2, -10), (3, 0);
DELETE FROM t RETURNING id, val, abs(val), sign(val);
} {1|42|42|1
2|-10|10|-1
3|0|0|0}
do_execsql_test_on_specific_db {:memory:} delete-returning-coalesce-arithmetic {
CREATE TABLE t (id INTEGER PRIMARY KEY, x INTEGER, y INTEGER);
INSERT INTO t VALUES (1, 5, NULL), (2, NULL, 10), (3, NULL, NULL);
DELETE FROM t RETURNING id, x, y, coalesce(x, 0) + coalesce(y, 0);
} {1|5||5
2||10|10
3|||0}
do_execsql_test_on_specific_db {:memory:} delete-returning-case-expression {
CREATE TABLE t (id INTEGER PRIMARY KEY, name TEXT, val INTEGER);
INSERT INTO t VALUES (1, 'test', 10), (2, 'test', 20);
DELETE FROM t WHERE val = 10 RETURNING id, name, val, CASE WHEN val > 15 THEN 'high' ELSE 'low' END;
} {1|test|10|low}
do_execsql_test_on_specific_db {:memory:} delete-returning-type-cast {
CREATE TABLE t (id INTEGER PRIMARY KEY, x REAL, y INTEGER);
INSERT INTO t VALUES (1, 1.5, 2), (2, 3.7, 4);
DELETE FROM t RETURNING id, x, y, round(x), cast(x AS INTEGER);
} {1|1.5|2|2.0|1
2|3.7|4|4.0|3}
# ============================================================================
# Edge cases and complex scenarios
# ============================================================================
@@ -540,6 +917,12 @@ do_execsql_test_on_specific_db {:memory:} update-returning-no-column-reference {
UPDATE t SET id = 2 RETURNING 1 + 1, 'constant', NULL;
} {2|constant|}
do_execsql_test_on_specific_db {:memory:} delete-returning-no-column-reference {
CREATE TABLE t (id INTEGER);
INSERT INTO t VALUES (1);
DELETE FROM t WHERE id = 1 RETURNING 1 + 1, 'constant', NULL;
} {2|constant|}
# RETURNING with aggregate-like expressions (should work per-row)
do_execsql_test_on_specific_db {:memory:} insert-returning-sum-expression {
CREATE TABLE t (id INTEGER, a INTEGER, b INTEGER);