should be it

external/duckdb/test/sql/cast/test_string_cast.test

@@ -0,0 +1,260 @@
+# name: test/sql/cast/test_string_cast.test
+# description: Test string casts
+# group: [cast]
+
+statement ok
+PRAGMA enable_verification
+
+query TTT
+SELECT (1=1)::VARCHAR, (1=0)::VARCHAR, NULL::BOOLEAN::VARCHAR
+----
+true
+false
+NULL
+
+query TTT
+SELECT 1::TINYINT::VARCHAR, 12::TINYINT::VARCHAR, (-125)::TINYINT::VARCHAR
+----
+1
+12
+-125
+
+query TTT
+SELECT 1::SMALLINT::VARCHAR, 12442::SMALLINT::VARCHAR, (-32153)::SMALLINT::VARCHAR
+----
+1
+12442
+-32153
+
+query TTT
+SELECT 1::INTEGER::VARCHAR, 12442952::INTEGER::VARCHAR, (-2000000111)::INTEGER::VARCHAR
+----
+1
+12442952
+-2000000111
+
+query TTT
+SELECT 1::BIGINT::VARCHAR, 1244295295289253::BIGINT::VARCHAR, (-2000000111551166)::BIGINT::VARCHAR
+----
+1
+1244295295289253
+-2000000111551166
+
+query TTT
+SELECT 2::FLOAT::VARCHAR, 0.5::FLOAT::VARCHAR, (-128.5)::FLOAT::VARCHAR
+----
+2.0
+0.5
+-128.5
+
+query TTT
+SELECT 2::DOUBLE::VARCHAR, 0.5::DOUBLE::VARCHAR, (-128.5)::DOUBLE::VARCHAR
+----
+2.0
+0.5
+-128.5
+
+query IIIII
+SELECT '0xF'::INTEGER, '0x0'::INTEGER, '0xFEE'::INTEGER, '0xfee'::INTEGER, '0x00FEE'::INTEGER
+----
+15
+0
+4078
+4078
+4078
+
+# Empty hex fails
+
+statement error
+SELECT '0x'::INT
+----
+
+statement error
+SELECT '0X'::INT
+----
+
+# Hex with invalid characters fails
+
+statement error
+SELECT '0xHELLO'::INT
+----
+
+# Overflow with very large numbers
+
+statement error
+SELECT '0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF'::INT
+----
+
+# Allowed upper bounds for casting from hex strings to signed integers
+query IIII
+SELECT '0x7F'::TINYINT, '0x7FFF'::SMALLINT, '0x7FFFFFFF'::INT, '0x7FFFFFFFFFFFFFFF'::BIGINT
+----
+127
+32767
+2147483647
+9223372036854775807
+
+# Allowed upper bounds for casting from hex strings to unsigned integers
+
+query IIII
+SELECT '0xFF'::UINT8, '0xFFFF'::UINT16, '0xFFFFFFFF'::UINT32, '0xFFFFFFFFFFFFFFFF'::UINT64
+----
+255
+65535
+4294967295
+18446744073709551615
+
+# Lots of zeros is safe
+
+query I
+SELECT '0x000000000000000000000000000000000000000000000000000000000000000000'::INT
+----
+0
+
+# Bounds exceeded for casting from hex strings to integers
+
+statement error
+SELECT '0x80'::TINYINT
+----
+
+statement error
+SELECT '0x8000'::SMALLINT
+----
+
+statement error
+SELECT '0x80000000'::INT
+----
+
+statement error
+SELECT '0x8000000000000000'::BIGINT
+----
+
+statement error
+SELECT '0x100'::UINT8
+----
+
+statement error
+SELECT '0x10000'::UINT16
+----
+
+statement error
+SELECT '0x100000000'::UINT32
+----
+
+statement error
+SELECT '0x10000000000000000'::UINT64
+----
+
+# Bounds exceeded for casting from hex strings to integers, TRY_CAST should be safe
+
+query I
+SELECT TRY_CAST('0x80' AS TINYINT)
+----
+NULL
+
+query I
+SELECT TRY_CAST('0x8000' AS SMALLINT)
+----
+NULL
+
+query I
+SELECT TRY_CAST('0x80000000' AS INT)
+----
+NULL
+
+query I
+SELECT TRY_CAST('0x8000000000000000' AS BIGINT)
+----
+NULL
+
+query I
+SELECT TRY_CAST('0x100' AS UINT8)
+----
+NULL
+
+query I
+SELECT TRY_CAST('0x10000' AS UINT16)
+----
+NULL
+
+query I
+SELECT TRY_CAST('0x100000000' AS UINT32)
+----
+NULL
+
+query I
+SELECT TRY_CAST('0x10000000000000000' AS UINT64)
+----
+NULL
+
+# Casting decimal strings to integral types should round to be consistent.
+foreach inttype TINYINT SMALLINT INTEGER BIGINT HUGEINT
+
+query I
+SELECT '0.5'::${inttype};
+----
+1
+
+query I
+SELECT '-0.5'::${inttype};
+----
+-1
+
+endloop
+
+# Casting hex strings to integral types should round to be consistent.
+foreach inttype TINYINT SMALLINT INTEGER BIGINT
+
+query I
+SELECT '0x1e'::${inttype};
+----
+30
+
+endloop
+
+# Varied case casting should be consistent
+foreach hex 0xfade 0Xfade 0xFADE 0XFADE 0xFaDe 0xFaDE 0XFaDe 0xfAdE
+
+query I
+SELECT '${hex}'::INT;
+----
+64222
+
+endloop
+
+# Casting zeros
+foreach inttype TINYINT SMALLINT INTEGER BIGINT HUGEINT DECIMAL
+
+query I
+SELECT '0'::${inttype};
+----
+0
+
+endloop
+
+# Casting infinities of various timestamp units
+
+foreach ts timestamp timestamp_ms timestamp_ns timestamp_s timestamptz
+
+query I
+SELECT ('infinity'::${ts})::VARCHAR
+----
+infinity
+
+query I
+SELECT ('-infinity'::${ts})::VARCHAR
+----
+-infinity
+
+query I
+SELECT TRY_CAST('infinity' AS ${ts})
+----
+infinity
+
+query I
+SELECT TRY_CAST('-infinity' AS ${ts})
+----
+-infinity
+
+#ts
+endloop