Fix Linux tests

Author: finestructure

Sources/ShellOut.swift

@@ -418,7 +418,6 @@ private extension Process {
         let errorPipe = Pipe()
         standardError = errorPipe
 
-        #if !os(Linux)
         outputPipe.fileHandleForReading.readabilityHandler = { handler in
             let data = handler.availableData
             outputQueue.async {
@@ -434,21 +433,13 @@ private extension Process {
                 errorHandle?.write(data)
             }
         }
-        #endif
 
 #if os(Linux)
         try run()
 #else
         launch()
 #endif
 
-        #if os(Linux)
-        outputQueue.sync {
-            outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
-            errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
-        }
-        #endif
-
         waitUntilExit()
 
         if let handle = outputHandle, !handle.isStandard {
@@ -459,10 +450,8 @@ private extension Process {
             handle.closeFile()
         }
 
-        #if !os(Linux)
         outputPipe.fileHandleForReading.readabilityHandler = nil
         errorPipe.fileHandleForReading.readabilityHandler = nil
-        #endif
 
         // Block until all writes have occurred to outputData and errorData,
         // and then read the data back out.

Tests/ShellOutTests/ShellOutTests.swift

@@ -71,7 +71,7 @@ class ShellOutTests: XCTestCase {
     }
 
     func testSingleCommandAtPathContainingTilde() throws {
-        let homeContents = try shellOut(to: "ls".checked, at: "~")
+        let homeContents = try shellOut(to: "ls".checked, arguments: ["-a"], at: "~")
         XCTAssertFalse(homeContents.isEmpty)
     }