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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#if compiler(>=6)
public import XCTest
#else
import XCTest
#endif
/// Base class for a performance test case in SourceKit-LSP.
///
/// This allows writing performance tests whose performance tracking is only
/// enabled when ENABLE_PERF_TESTS is defined. Otherwise, the test is still
/// executed, but no metrics are enabled, and the measured block is only run
/// once, which is useful to avoid failures due to high variability in
/// continuous integration.
open class PerfTestCase: XCTestCase {
#if !ENABLE_PERF_TESTS
#if os(macOS)
open override func startMeasuring() {}
open override func stopMeasuring() {}
open override func measureMetrics(
_: [XCTPerformanceMetric],
automaticallyStartMeasuring: Bool,
for block: () -> Void
) {
block()
}
#else
// In corelibs-xctest, these methods are public, not open, so we can only
// shadow them.
package func startMeasuring() {}
package func stopMeasuring() {}
package func measureMetrics(
_: [XCTPerformanceMetric],
automaticallyStartMeasuring: Bool,
for block: () -> Void
) {
block()
}
package func measure(block: () -> Void) {
block()
}
#endif
#endif
}
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