test: cover createTableAcceptsANamedTableLevelCheckConstraint
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dualfroz committed
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@@ -790,3 +790,160 @@ class AlterTableTest {
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assertTrue(error.message!!.contains("c1"), error.message!!)
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assertTrue(error.message!!.contains("c1"), error.message!!)
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}
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}
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@Test
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fun createTableAcceptsANamedTableLevelCheckConstraint() {
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run("CREATE TABLE t (id INTEGER PRIMARY KEY, age INTEGER, CONSTRAINT chk_age CHECK (age > 0))")
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val error = assertFailsWith<KestrelException> { run("INSERT INTO t VALUES (1, -1)") }
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assertTrue(error.message!!.contains("chk_age"), error.message!!)
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}
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@Test
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fun createTableAcceptsANamedTableLevelUniqueConstraint() {
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run("CREATE TABLE t (id INTEGER PRIMARY KEY, email TEXT, CONSTRAINT uq_email UNIQUE (email))")
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run("INSERT INTO t VALUES (1, 'a@x.com')")
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val error = assertFailsWith<KestrelException> { run("INSERT INTO t VALUES (2, 'a@x.com')") }
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assertTrue(error.message!!.contains("uq_email"), error.message!!)
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}
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@Test
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fun createTableAcceptsANamedTableLevelForeignKeyConstraint() {
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run("CREATE TABLE departments (id INTEGER PRIMARY KEY)")
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run(
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"CREATE TABLE employees (id INTEGER PRIMARY KEY, dept_id INTEGER, " +
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"CONSTRAINT fk_dept FOREIGN KEY (dept_id) REFERENCES departments (id))"
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)
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run("INSERT INTO departments VALUES (1)")
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val error = assertFailsWith<KestrelException> { run("INSERT INTO employees VALUES (1, 99)") }
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assertTrue(error.message!!.contains("FOREIGN KEY constraint failed"), error.message!!)
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}
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@Test
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fun dropConstraintRemovesANamedCheckConstraint() {
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run("CREATE TABLE t (id INTEGER PRIMARY KEY, age INTEGER, CONSTRAINT chk_age CHECK (age > 0))")
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exec("ALTER TABLE t DROP CONSTRAINT chk_age")
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run("INSERT INTO t VALUES (1, -5)")
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assertEquals(listOf(listOf(int(1))), select("SELECT id FROM t").rows)
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}
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@Test
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fun dropConstraintRemovesANamedUniqueConstraint() {
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run("CREATE TABLE t (id INTEGER PRIMARY KEY, email TEXT, CONSTRAINT uq_email UNIQUE (email))")
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run("INSERT INTO t VALUES (1, 'a@x.com')")
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exec("ALTER TABLE t DROP CONSTRAINT uq_email")
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run("INSERT INTO t VALUES (2, 'a@x.com')")
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assertEquals(2, select("SELECT id FROM t").rows.size)
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}
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@Test
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fun dropConstraintRemovesANamedForeignKeyConstraint() {
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run("CREATE TABLE departments (id INTEGER PRIMARY KEY)")
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run(
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"CREATE TABLE employees (id INTEGER PRIMARY KEY, dept_id INTEGER, " +
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"CONSTRAINT fk_dept FOREIGN KEY (dept_id) REFERENCES departments (id))"
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)
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exec("ALTER TABLE employees DROP CONSTRAINT fk_dept")
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run("INSERT INTO employees VALUES (1, 99)")
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assertEquals(listOf(listOf(int(1))), select("SELECT id FROM employees").rows)
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}
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@Test
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fun dropConstraintFailsForAnUnknownName() {
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run("CREATE TABLE t (id INTEGER PRIMARY KEY)")
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val error = assertFailsWith<KestrelException> { run("ALTER TABLE t DROP CONSTRAINT nope") }
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assertTrue(error.message!!.contains("no such constraint"), error.message!!)
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}
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@Test
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fun dropConstraintRestrictsWhenAnotherTablesForeignKeyDependsOnTheUniqueConstraint() {
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run("CREATE TABLE departments (id INTEGER PRIMARY KEY, code TEXT, CONSTRAINT uq_code UNIQUE (code))")
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run(
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"CREATE TABLE employees (id INTEGER PRIMARY KEY, dept_code TEXT, " +
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"CONSTRAINT fk_dept_code FOREIGN KEY (dept_code) REFERENCES departments (code))"
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)
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val error = assertFailsWith<KestrelException> { run("ALTER TABLE departments DROP CONSTRAINT uq_code") }
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assertTrue(error.message!!.contains("employees"), error.message!!)
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}
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@Test
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fun dropConstraintCascadeRemovesTheDependentForeignKeyOnAnotherTable() {
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run("CREATE TABLE departments (id INTEGER PRIMARY KEY, code TEXT, CONSTRAINT uq_code UNIQUE (code))")
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run(
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"CREATE TABLE employees (id INTEGER PRIMARY KEY, dept_code TEXT, " +
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"CONSTRAINT fk_dept_code FOREIGN KEY (dept_code) REFERENCES departments (code))"
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)
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exec("ALTER TABLE departments DROP CONSTRAINT uq_code CASCADE")
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run("INSERT INTO employees VALUES (1, 'nonexistent')")
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assertEquals(listOf(listOf(int(1))), select("SELECT id FROM employees").rows)
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}
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@Test
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fun dropConstraintRestrictsASelfReferencingForeignKeyDependentOnItsOwnUniqueConstraint() {
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run(
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"CREATE TABLE t (id INTEGER PRIMARY KEY, code TEXT, parent_code TEXT, " +
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"CONSTRAINT uq_code UNIQUE (code), CONSTRAINT fk_parent FOREIGN KEY (parent_code) REFERENCES t (code))"
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)
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val error = assertFailsWith<KestrelException> { run("ALTER TABLE t DROP CONSTRAINT uq_code") }
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assertTrue(error.message!!.contains("FOREIGN KEY"), error.message!!)
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}
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@Test
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fun dropConstraintCascadeRemovesASelfReferencingForeignKeyThatDependedOnTheDroppedUniqueConstraint() {
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run(
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"CREATE TABLE t (id INTEGER PRIMARY KEY, code TEXT, parent_code TEXT, " +
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"CONSTRAINT uq_code UNIQUE (code), CONSTRAINT fk_parent FOREIGN KEY (parent_code) REFERENCES t (code))"
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)
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exec("ALTER TABLE t DROP CONSTRAINT uq_code CASCADE")
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run("INSERT INTO t VALUES (1, 'a', 'nonexistent')")
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assertEquals(listOf(listOf(int(1))), select("SELECT id FROM t").rows)
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}
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@Test
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fun dropConstraintAllowsDroppingAUniqueConstraintWhenAnotherRemainingGroupStillCoversTheSameColumns() {
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run(
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"CREATE TABLE departments (id INTEGER PRIMARY KEY, code TEXT, " +
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"CONSTRAINT uq_code_a UNIQUE (code), CONSTRAINT uq_code_b UNIQUE (code))"
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)
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run(
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"CREATE TABLE employees (id INTEGER PRIMARY KEY, dept_code TEXT, " +
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"CONSTRAINT fk_dept_code FOREIGN KEY (dept_code) REFERENCES departments (code))"
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)
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exec("ALTER TABLE departments DROP CONSTRAINT uq_code_a")
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val error = assertFailsWith<KestrelException> { run("INSERT INTO employees VALUES (1, 'nonexistent')") }
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assertTrue(error.message!!.contains("FOREIGN KEY constraint failed"), error.message!!)
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}
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// ---- ALTER COLUMN TYPE ----
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@Test
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fun changeColumnTypeWideningIntegerToRealCoercesExistingRowsWithNoExplicitUsing() {
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run("CREATE TABLE t (id INTEGER PRIMARY KEY, score INTEGER)")
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run("INSERT INTO t VALUES (1, 10), (2, 20)")
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val result = exec("ALTER TABLE t ALTER COLUMN score TYPE REAL")
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assertEquals(AlterTableResult("t"), result)
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assertEquals(listOf(listOf(real(10.0)), listOf(real(20.0))), select("SELECT score FROM t ORDER BY id ASC").rows)
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}
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@Test
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fun changeColumnTypeWideningIntegerToDecimalCoercesExistingRows() {
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run("CREATE TABLE t (id INTEGER PRIMARY KEY, amount INTEGER)")
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run("INSERT INTO t VALUES (1, 42)")
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exec("ALTER TABLE t ALTER COLUMN amount TYPE DECIMAL(10, 2)")
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assertEquals(listOf(listOf(decimal("42.00"))), select("SELECT amount FROM t").rows)
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}
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@Test
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fun changeColumnTypeWithUsingConvertsTextToIntegerViaCast() {
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run("CREATE TABLE t (id INTEGER PRIMARY KEY, code TEXT)")
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run("INSERT INTO t VALUES (1, '100'), (2, '200')")
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exec("ALTER TABLE t ALTER COLUMN code TYPE INTEGER USING CAST(code AS INTEGER)")
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assertEquals(listOf(listOf(int(100)), listOf(int(200))), select("SELECT code FROM t ORDER BY id ASC").rows)
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}
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@Test
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fun changeColumnTypeWithUsingCanReferenceTheRowsOtherColumns() {
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run("CREATE TABLE t (id INTEGER PRIMARY KEY, price INTEGER, quantity INTEGER)")
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run("INSERT INTO t VALUES (1, 10, 3)")
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exec("ALTER TABLE t ALTER COLUMN price TYPE INTEGER USING price * quantity")
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assertEquals(listOf(listOf(int(30))), select("SELECT price FROM t").rows)
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}
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