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Array+PSQLCodableTests.swift
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import XCTest
import NIOCore
@testable import PostgresNIO
class Array_PSQLCodableTests: XCTestCase {
func testArrayTypes() {
XCTAssertEqual(Bool.psqlArrayType, .boolArray)
XCTAssertEqual(Bool.psqlType, .bool)
XCTAssertEqual([Bool].psqlType, .boolArray)
XCTAssertEqual(ByteBuffer.psqlArrayType, .byteaArray)
XCTAssertEqual(ByteBuffer.psqlType, .bytea)
XCTAssertEqual([ByteBuffer].psqlType, .byteaArray)
XCTAssertEqual(UInt8.psqlArrayType, .charArray)
XCTAssertEqual(UInt8.psqlType, .char)
XCTAssertEqual([UInt8].psqlType, .charArray)
XCTAssertEqual(Int16.psqlArrayType, .int2Array)
XCTAssertEqual(Int16.psqlType, .int2)
XCTAssertEqual([Int16].psqlType, .int2Array)
XCTAssertEqual(Int32.psqlArrayType, .int4Array)
XCTAssertEqual(Int32.psqlType, .int4)
XCTAssertEqual([Int32].psqlType, .int4Array)
XCTAssertEqual(Int64.psqlArrayType, .int8Array)
XCTAssertEqual(Int64.psqlType, .int8)
XCTAssertEqual([Int64].psqlType, .int8Array)
#if (arch(i386) || arch(arm))
XCTAssertEqual(Int.psqlArrayType, .int4Array)
XCTAssertEqual(Int.psqlType, .int4)
XCTAssertEqual([Int].psqlType, .int4Array)
#else
XCTAssertEqual(Int.psqlArrayType, .int8Array)
XCTAssertEqual(Int.psqlType, .int8)
XCTAssertEqual([Int].psqlType, .int8Array)
#endif
XCTAssertEqual(Float.psqlArrayType, .float4Array)
XCTAssertEqual(Float.psqlType, .float4)
XCTAssertEqual([Float].psqlType, .float4Array)
XCTAssertEqual(Double.psqlArrayType, .float8Array)
XCTAssertEqual(Double.psqlType, .float8)
XCTAssertEqual([Double].psqlType, .float8Array)
XCTAssertEqual(String.psqlArrayType, .textArray)
XCTAssertEqual(String.psqlType, .text)
XCTAssertEqual([String].psqlType, .textArray)
XCTAssertEqual(UUID.psqlArrayType, .uuidArray)
XCTAssertEqual(UUID.psqlType, .uuid)
XCTAssertEqual([UUID].psqlType, .uuidArray)
XCTAssertEqual(Range<Int32>.psqlArrayType, .int4RangeArray)
XCTAssertEqual(Range<Int32>.psqlType, .int4Range)
XCTAssertEqual([Range<Int32>].psqlType, .int4RangeArray)
XCTAssertEqual(ClosedRange<Int32>.psqlArrayType, .int4RangeArray)
XCTAssertEqual(ClosedRange<Int32>.psqlType, .int4Range)
XCTAssertEqual([ClosedRange<Int32>].psqlType, .int4RangeArray)
XCTAssertEqual(Range<Int64>.psqlArrayType, .int8RangeArray)
XCTAssertEqual(Range<Int64>.psqlType, .int8Range)
XCTAssertEqual([Range<Int64>].psqlType, .int8RangeArray)
XCTAssertEqual(ClosedRange<Int64>.psqlArrayType, .int8RangeArray)
XCTAssertEqual(ClosedRange<Int64>.psqlType, .int8Range)
XCTAssertEqual([ClosedRange<Int64>].psqlType, .int8RangeArray)
}
func testStringArrayRoundTrip() {
let values = ["foo", "bar", "hello", "world"]
var buffer = ByteBuffer()
values.encode(into: &buffer, context: .default)
var result: [String]?
XCTAssertNoThrow(result = try [String](from: &buffer, type: .textArray, format: .binary, context: .default))
XCTAssertEqual(values, result)
}
func testEmptyStringArrayRoundTrip() {
let values: [String] = []
var buffer = ByteBuffer()
values.encode(into: &buffer, context: .default)
var result: [String]?
XCTAssertNoThrow(result = try [String](from: &buffer, type: .textArray, format: .binary, context: .default))
XCTAssertEqual(values, result)
}
func testDecodeFailureIsNotEmptyOutOfScope() {
var buffer = ByteBuffer()
buffer.writeInteger(Int32(2)) // invalid value
buffer.writeInteger(Int32(0))
buffer.writeInteger(String.psqlType.rawValue)
XCTAssertThrowsError(try [String](from: &buffer, type: .textArray, format: .binary, context: .default)) {
XCTAssertEqual($0 as? PostgresDecodingError.Code, .failure)
}
}
func testDecodeFailureSecondValueIsUnexpected() {
var buffer = ByteBuffer()
buffer.writeInteger(Int32(0)) // is empty
buffer.writeInteger(Int32(1)) // invalid value, must always be 0
buffer.writeInteger(String.psqlType.rawValue)
XCTAssertThrowsError(try [String](from: &buffer, type: .textArray, format: .binary, context: .default)) {
XCTAssertEqual($0 as? PostgresDecodingError.Code, .failure)
}
}
func testDecodeFailureTriesDecodeInt8() {
let value: Int64 = 1 << 32
var buffer = ByteBuffer()
value.encode(into: &buffer, context: .default)
XCTAssertThrowsError(try [String](from: &buffer, type: .textArray, format: .binary, context: .default)) {
XCTAssertEqual($0 as? PostgresDecodingError.Code, .failure)
}
}
func testDecodeFailureInvalidNumberOfArrayElements() {
var buffer = ByteBuffer()
buffer.writeInteger(Int32(1)) // invalid value
buffer.writeInteger(Int32(0))
buffer.writeInteger(String.psqlType.rawValue)
buffer.writeInteger(Int32(-123)) // expected element count
buffer.writeInteger(Int32(1)) // dimensions... must be one
XCTAssertThrowsError(try [String](from: &buffer, type: .textArray, format: .binary, context: .default)) {
XCTAssertEqual($0 as? PostgresDecodingError.Code, .failure)
}
}
func testDecodeFailureInvalidNumberOfDimensions() {
var buffer = ByteBuffer()
buffer.writeInteger(Int32(1)) // invalid value
buffer.writeInteger(Int32(0))
buffer.writeInteger(String.psqlType.rawValue)
buffer.writeInteger(Int32(1)) // expected element count
buffer.writeInteger(Int32(2)) // dimensions... must be one
XCTAssertThrowsError(try [String](from: &buffer, type: .textArray, format: .binary, context: .default)) {
XCTAssertEqual($0 as? PostgresDecodingError.Code, .failure)
}
}
func testDecodeUnexpectedEnd() {
var unexpectedEndInElementLengthBuffer = ByteBuffer()
unexpectedEndInElementLengthBuffer.writeInteger(Int32(1)) // invalid value
unexpectedEndInElementLengthBuffer.writeInteger(Int32(0))
unexpectedEndInElementLengthBuffer.writeInteger(String.psqlType.rawValue)
unexpectedEndInElementLengthBuffer.writeInteger(Int32(1)) // expected element count
unexpectedEndInElementLengthBuffer.writeInteger(Int32(1)) // dimensions
unexpectedEndInElementLengthBuffer.writeInteger(Int16(1)) // length of element, must be Int32
XCTAssertThrowsError(try [String](from: &unexpectedEndInElementLengthBuffer, type: .textArray, format: .binary, context: .default)) {
XCTAssertEqual($0 as? PostgresDecodingError.Code, .failure)
}
var unexpectedEndInElementBuffer = ByteBuffer()
unexpectedEndInElementBuffer.writeInteger(Int32(1)) // invalid value
unexpectedEndInElementBuffer.writeInteger(Int32(0))
unexpectedEndInElementBuffer.writeInteger(String.psqlType.rawValue)
unexpectedEndInElementBuffer.writeInteger(Int32(1)) // expected element count
unexpectedEndInElementBuffer.writeInteger(Int32(1)) // dimensions
unexpectedEndInElementBuffer.writeInteger(Int32(12)) // length of element, must be Int32
unexpectedEndInElementBuffer.writeString("Hello World") // only 11 bytes, 12 needed!
XCTAssertThrowsError(try [String](from: &unexpectedEndInElementBuffer, type: .textArray, format: .binary, context: .default)) {
XCTAssertEqual($0 as? PostgresDecodingError.Code, .failure)
}
}
}