From 2eb3cf7c3fa982baa6b2587af6079b53fd4f1904 Mon Sep 17 00:00:00 2001
From: "Edward Z. Yang" <ezyang@fb.com>
Date: Mon, 1 Jan 2018 17:24:36 -0500
Subject: [PATCH] Test case for #4986

Signed-off-by: Edward Z. Yang <ezyang@fb.com>
---
 .../PackageTests/Regression/T4986/cabal.out        |  6 ++++++
 .../PackageTests/Regression/T4986/cabal.project    |  1 +
 .../PackageTests/Regression/T4986/cabal.test.hs    |  4 ++++
 .../PackageTests/Regression/T4986/client/Hello.hs  |  1 +
 .../Regression/T4986/client/client.cabal           | 14 ++++++++++++++
 .../PackageTests/Regression/T4986/happy/Main.hs    |  1 +
 .../Regression/T4986/happy/happy.cabal             | 12 ++++++++++++
 7 files changed, 39 insertions(+)
 create mode 100644 cabal-testsuite/PackageTests/Regression/T4986/cabal.out
 create mode 100644 cabal-testsuite/PackageTests/Regression/T4986/cabal.project
 create mode 100644 cabal-testsuite/PackageTests/Regression/T4986/cabal.test.hs
 create mode 100644 cabal-testsuite/PackageTests/Regression/T4986/client/Hello.hs
 create mode 100644 cabal-testsuite/PackageTests/Regression/T4986/client/client.cabal
 create mode 100644 cabal-testsuite/PackageTests/Regression/T4986/happy/Main.hs
 create mode 100644 cabal-testsuite/PackageTests/Regression/T4986/happy/happy.cabal

diff --git a/cabal-testsuite/PackageTests/Regression/T4986/cabal.out b/cabal-testsuite/PackageTests/Regression/T4986/cabal.out
new file mode 100644
index 00000000000..3ce7bcc07fd
--- /dev/null
+++ b/cabal-testsuite/PackageTests/Regression/T4986/cabal.out
@@ -0,0 +1,6 @@
+# cabal new-configure
+Resolving dependencies...
+Build profile: -w ghc-<GHCVER> -O1
+In order, the following would be built:
+ - happy-999.999.999 (exe:happy) (first run)
+ - client-0.1.0.0 (exe:hello-world) (first run)
diff --git a/cabal-testsuite/PackageTests/Regression/T4986/cabal.project b/cabal-testsuite/PackageTests/Regression/T4986/cabal.project
new file mode 100644
index 00000000000..b5377830e88
--- /dev/null
+++ b/cabal-testsuite/PackageTests/Regression/T4986/cabal.project
@@ -0,0 +1 @@
+packages: client, happy
diff --git a/cabal-testsuite/PackageTests/Regression/T4986/cabal.test.hs b/cabal-testsuite/PackageTests/Regression/T4986/cabal.test.hs
new file mode 100644
index 00000000000..a18f88b8045
--- /dev/null
+++ b/cabal-testsuite/PackageTests/Regression/T4986/cabal.test.hs
@@ -0,0 +1,4 @@
+import Test.Cabal.Prelude
+main = cabalTest $
+    withSourceCopy $
+        cabal "new-configure" []
diff --git a/cabal-testsuite/PackageTests/Regression/T4986/client/Hello.hs b/cabal-testsuite/PackageTests/Regression/T4986/client/Hello.hs
new file mode 100644
index 00000000000..b3549c2fe3d
--- /dev/null
+++ b/cabal-testsuite/PackageTests/Regression/T4986/client/Hello.hs
@@ -0,0 +1 @@
+main = return ()
diff --git a/cabal-testsuite/PackageTests/Regression/T4986/client/client.cabal b/cabal-testsuite/PackageTests/Regression/T4986/client/client.cabal
new file mode 100644
index 00000000000..de5997dba36
--- /dev/null
+++ b/cabal-testsuite/PackageTests/Regression/T4986/client/client.cabal
@@ -0,0 +1,14 @@
+name:                client
+version:             0.1.0.0
+synopsis:            Checks build-tools are put in PATH
+license:             BSD3
+category:            Testing
+build-type:          Simple
+cabal-version:       >=1.10
+
+executable             hello-world
+  main-is:             Hello.hs
+  build-depends:       base
+  build-tools:         happy
+  build-tool-depends:  happy:happy
+  default-language:    Haskell2010
diff --git a/cabal-testsuite/PackageTests/Regression/T4986/happy/Main.hs b/cabal-testsuite/PackageTests/Regression/T4986/happy/Main.hs
new file mode 100644
index 00000000000..b3549c2fe3d
--- /dev/null
+++ b/cabal-testsuite/PackageTests/Regression/T4986/happy/Main.hs
@@ -0,0 +1 @@
+main = return ()
diff --git a/cabal-testsuite/PackageTests/Regression/T4986/happy/happy.cabal b/cabal-testsuite/PackageTests/Regression/T4986/happy/happy.cabal
new file mode 100644
index 00000000000..822b9f08e12
--- /dev/null
+++ b/cabal-testsuite/PackageTests/Regression/T4986/happy/happy.cabal
@@ -0,0 +1,12 @@
+name:                happy
+version:             999.999.999
+synopsis:            Checks double-dependency on build-tool works correctly
+license:             BSD3
+category:            Testing
+build-type:          Simple
+cabal-version:       >=1.10
+
+executable             happy
+  main-is:             Main.hs
+  build-depends:       base
+  default-language:    Haskell2010