Invoke bash directly

Author: CodaFi

Sources/LiteSupport/TestRunner.swift

@@ -252,7 +252,7 @@ class TestRunner {
       let exitCode: Int
       let bash = file.makeCommandLine(line, substitutor: substitutor)
       do {
-        let args = bash.split(separator: " ").map { String($0 as Substring) }
+        let args = ["/bin/bash", "-c", bash]
         let result = try Process.popen(arguments: args)
         stdout = try result.utf8Output().chomp()
         stderr = ""

Sources/lite-test/main.swift

@@ -7,7 +7,7 @@ import LiteSupport
 /// Runs `lite` looking for `.test` files and executing them.
 do {
   let allPassed = try runLite(
-    substitutions: [("echo", "echo")],
+    substitutions: [("echo", "/bin/echo")],
     pathExtensions: ["test"],
     testDirPath: nil,
     testLinePrefix: "//",