First Commit

Author: Yevgeny Pats

.gitignore

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+.DS_Store
+/.build
+/Packages
+/*.xcodeproj

Package.swift

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+// swift-tools-version:5.0
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "example-swift",
+    dependencies: [
+        // Dependencies declare other packages that this package depends on.
+        // .package(url: /* package url */, from: "1.0.0"),
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages which this package depends on.
+        .target(
+            name: "example-swift",
+            dependencies: []),
+        .testTarget(
+            name: "example-swiftTests",
+            dependencies: ["example-swift"]),
+    ]
+)

README.md

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+# example-swift
+
+A description of this package.

Sources/example-swift/main.swift

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+@_cdecl("LLVMFuzzerTestOneInput") public func fuzzMe(data: UnsafePointer<CChar>, size: CInt) -> CInt {
+
+   return 0
+}

Tests/LinuxMain.swift

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+import XCTest
+
+import example_swiftTests
+
+var tests = [XCTestCaseEntry]()
+tests += example_swiftTests.allTests()
+XCTMain(tests)

Tests/example-swiftTests/XCTestManifests.swift

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+import XCTest
+
+#if !canImport(ObjectiveC)
+public func allTests() -> [XCTestCaseEntry] {
+    return [
+        testCase(example_swiftTests.allTests),
+    ]
+}
+#endif

Tests/example-swiftTests/example_swiftTests.swift

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+import XCTest
+import class Foundation.Bundle
+
+final class example_swiftTests: XCTestCase {
+    func testExample() throws {
+        // This is an example of a functional test case.
+        // Use XCTAssert and related functions to verify your tests produce the correct
+        // results.
+
+        // Some of the APIs that we use below are available in macOS 10.13 and above.
+        guard #available(macOS 10.13, *) else {
+            return
+        }
+
+        let fooBinary = productsDirectory.appendingPathComponent("example-swift")
+
+        let process = Process()
+        process.executableURL = fooBinary
+
+        let pipe = Pipe()
+        process.standardOutput = pipe
+
+        try process.run()
+        process.waitUntilExit()
+
+        let data = pipe.fileHandleForReading.readDataToEndOfFile()
+        let output = String(data: data, encoding: .utf8)
+
+        XCTAssertEqual(output, "Hello, world!\n")
+    }
+
+    /// Returns path to the built products directory.
+    var productsDirectory: URL {
+      #if os(macOS)
+        for bundle in Bundle.allBundles where bundle.bundlePath.hasSuffix(".xctest") {
+            return bundle.bundleURL.deletingLastPathComponent()
+        }
+        fatalError("couldn't find the products directory")
+      #else
+        return Bundle.main.bundleURL
+      #endif
+    }
+
+    static var allTests = [
+        ("testExample", testExample),
+    ]
+}