add test

Author: bacchanalia

cabal-testsuite/PackageTests/NewBuild/CmdRun/ScriptWithProjectBlock/cabal.out

@@ -0,0 +1,7 @@
+# cabal v2-run
+Resolving dependencies...
+Build profile: -w ghc-<GHCVER> -O2
+In order, the following will be built:
+ - fake-package-0 (exe:cabal-script-script.hs) (first run)
+Configuring executable 'cabal-script-script.hs' for fake-package-0..
+Building executable 'cabal-script-script.hs' for fake-package-0..

cabal-testsuite/PackageTests/NewBuild/CmdRun/ScriptWithProjectBlock/cabal.test.hs

@@ -0,0 +1,5 @@
+import Test.Cabal.Prelude
+
+main = cabalTest $ do
+    res <- cabal' "v2-run" ["script.hs"]
+    assertOutputContains "Hello World" res

cabal-testsuite/PackageTests/NewBuild/CmdRun/ScriptWithProjectBlock/script.hs

@@ -0,0 +1,10 @@
+#!/usr/bin/env cabal
+{- cabal:
+build-depends: base
+-}
+{- project:
+optimization: 2
+-}
+
+main :: IO ()
+main = putStrLn "Hello World"