Test suite failure

[bergmark]

From stackage nightly build

Building test suite 'doctests' for linear-accelerate-0.5..

<no location info>: warning: [-Wmissing-home-modules]
    These modules are needed for compilation but not listed in your .cabal file's other-modules: Build_doctests
[1 of 2] Compiling Build_doctests   ( dist/build/doctests/autogen/Build_doctests.hs, dist/build/doctests/doctests-tmp/Build_doctests.o )
[2 of 2] Compiling Main             ( tests/doctests.hs, dist/build/doctests/doctests-tmp/Main.o )

<no location info>: warning: [-Wmissing-home-modules]
    These modules are needed for compilation but not listed in your .cabal file's other-modules: Build_doctests
Linking dist/build/doctests/doctests ...
> /tmp/stackage-build14/linear-accelerate-0.5$ dist/build/doctests/doctests
### Failure in /tmp/stackage-build14/linear-accelerate-0.5/src/Data/Array/Accelerate/Linear/Matrix.hs:160: expression `identity :: Exp (M44 Int)'
expected: "let x0 = 1 in"
          "let x1 = 0"
          "in ((x0,x1,x1,x1),(x1,x0,x1,x1),(x1,x1,x0,x1),(x1,x1,x1,x0))"
 but got: "\ESC[33mlet\ESC[0m x0 = 1 \ESC[33min\ESC[0m"
          "\ESC[33mlet\ESC[0m x1 = 0"
          "\ESC[33min\ESC[0m ((x0,x1,x1,x1),(x1,x0,x1,x1),(x1,x1,x0,x1),(x1,x1,x1,x0))"
Examples: 36  Tried: 35  Errors: 0  Failures: 1

[RyanGlScott]

Odd, the tests appear to be working for me locally, both via cabal and stack (example). How are you running the tests? FWIW, the output appears to be the same modulo some odd escape characters.

[bergmark]

the stackage server doesn't use either, here's the full command+output:

> /tmp/stackage-build14/linear-accelerate-0.5$ ghc -clear-package-db -global-package-db -package-db=/var/stackage/work/builds/nightly/pkgdb -hide-all-packages -package=Cabal -package=base -package=cabal-doctest Setup
[1 of 1] Compiling Main             ( Setup.lhs, Setup.o )
Linking Setup ...
> /tmp/stackage-build14/linear-accelerate-0.5$ ./Setup configure --enable-tests --package-db=clear --package-db=global --package-db=/var/stackage/work/builds/nightly/pkgdb --libdir=/var/stackage/work/builds/nightly/lib --bindir=/var/stackage/work/builds/nightly/bin --datadir=/var/stackage/work/builds/nightly/share --libexecdir=/var/stackage/work/builds/nightly/libexec --sysconfdir=/var/stackage/work/builds/nightly/etc --docdir=/var/stackage/work/builds/nightly/doc/linear-accelerate-0.5 --htmldir=/var/stackage/work/builds/nightly/doc/linear-accelerate-0.5 --haddockdir=/var/stackage/work/builds/nightly/doc/linear-accelerate-0.5 --flags=
Configuring linear-accelerate-0.5...
> /tmp/stackage-build14/linear-accelerate-0.5$ ghc -clear-package-db -global-package-db -package-db=/var/stackage/work/builds/nightly/pkgdb -hide-all-packages -package=Cabal -package=base -package=cabal-doctest Setup
> /tmp/stackage-build14/linear-accelerate-0.5$ ./Setup build
Preprocessing library for linear-accelerate-0.5..
Building library for linear-accelerate-0.5..
[ 1 of 14] Compiling Data.Array.Accelerate.Linear.Epsilon ( src/Data/Array/Accelerate/Linear/Epsilon.hs, dist/build/Data/Array/Accelerate/Linear/Epsilon.o )
[ 2 of 14] Compiling Data.Array.Accelerate.Linear.Type ( src/Data/Array/Accelerate/Linear/Type.hs, dist/build/Data/Array/Accelerate/Linear/Type.o )
[ 3 of 14] Compiling Data.Array.Accelerate.Linear.Lift ( src/Data/Array/Accelerate/Linear/Lift.hs, dist/build/Data/Array/Accelerate/Linear/Lift.o )
[ 4 of 14] Compiling Data.Array.Accelerate.Linear.Vector ( src/Data/Array/Accelerate/Linear/Vector.hs, dist/build/Data/Array/Accelerate/Linear/Vector.o )
[ 5 of 14] Compiling Data.Array.Accelerate.Linear.Metric ( src/Data/Array/Accelerate/Linear/Metric.hs, dist/build/Data/Array/Accelerate/Linear/Metric.o )
[ 6 of 14] Compiling Data.Array.Accelerate.Linear.V1 ( src/Data/Array/Accelerate/Linear/V1.hs, dist/build/Data/Array/Accelerate/Linear/V1.o )
[ 7 of 14] Compiling Data.Array.Accelerate.Linear.V2 ( src/Data/Array/Accelerate/Linear/V2.hs, dist/build/Data/Array/Accelerate/Linear/V2.o )
[ 8 of 14] Compiling Data.Array.Accelerate.Linear.V3 ( src/Data/Array/Accelerate/Linear/V3.hs, dist/build/Data/Array/Accelerate/Linear/V3.o )
[ 9 of 14] Compiling Data.Array.Accelerate.Linear.V4 ( src/Data/Array/Accelerate/Linear/V4.hs, dist/build/Data/Array/Accelerate/Linear/V
[10 of 14] Compiling Data.Array.Accelerate.Linear.V0 ( src/Data/Array/Accelerate/Linear/V0.hs, dist/build/Data/Array/Accelerate/Linear/V0.o )
[11 of 14] Compiling Data.Array.Accelerate.Linear.Quaternion ( src/Data/Array/Accelerate/Linear/Quaternion.hs, dist/build/Data/Array/Accelerate/Linear/Quaternion.o )
[12 of 14] Compiling Data.Array.Accelerate.Linear.Plucker ( src/Data/Array/Accelerate/Linear/Plucker.hs, dist/build/Data/Array/Accelerate/Linear/Plucker.o )
[13 of 14] Compiling Data.Array.Accelerate.Linear.Matrix ( src/Data/Array/Accelerate/Linear/Matrix.hs, dist/build/Data/Array/Accelerate/Linear/Matrix.o )
[14 of 14] Compiling Data.Array.Accelerate.Linear ( src/Data/Array/Accelerate/Linear.hs, dist/build/Data/Array/Accelerate/Linear.o )
Preprocessing test suite 'doctests' for linear-accelerate-0.5..
Building test suite 'doctests' for linear-accelerate-0.5..

<no location info>: warning: [-Wmissing-home-modules]
    These modules are needed for compilation but not listed in your .cabal file's other-modules: Build_doctests
[1 of 2] Compiling Build_doctests   ( dist/build/doctests/autogen/Build_doctests.hs, dist/build/doctests/doctests-tmp/Build_doctests.o )
[2 of 2] Compiling Main             ( tests/doctests.hs, dist/build/doctests/doctests-tmp/Main.o )

<no location info>: warning: [-Wmissing-home-modules]
    These modules are needed for compilation but not listed in your .cabal file's other-modules: Build_doctests
Linking dist/build/doctests/doctests ...
> /tmp/stackage-build14/linear-accelerate-0.5$ dist/build/doctests/doctests
### Failure in /tmp/stackage-build14/linear-accelerate-0.5/src/Data/Array/Accelerate/Linear/Matrix.hs:160: expression `identity :: Exp (M44 Int)'
expected: "let x0 = 1 in"
          "let x1 = 0"
          "in ((x0,x1,x1,x1),(x1,x0,x1,x1),(x1,x1,x0,x1),(x1,x1,x1,x0))"
 but got: "\ESC[33mlet\ESC[0m x0 = 1 \ESC[33min\ESC[0m"
          "\ESC[33mlet\ESC[0m x1 = 0"
          "\ESC[33min\ESC[0m ((x0,x1,x1,x1),(x1,x0,x1,x1),(x1,x1,x0,x1),(x1,x1,x1,x0))"
Examples: 36  Tried: 35  Errors: 0  Failures: 1
-i
-i/tmp/stackage-build14/linear-accelerate-0.5/dist/build/autogen
-i/tmp/stackage-build14/linear-accelerate-0.5/dist/build
-i/tmp/stackage-build14/linear-accelerate-0.5/src
-hide-all-packages
-no-user-package-db
-package-db=/var/stackage/work/builds/nightly/pkgdb
-package-db=dist/package.conf.inplace
-optP-include
-optPdist/build/autogen/cabal_macros.h
-package-id=base-4.10.0.0
-package-id=accelerate-1.1.1.0-Jlnu03oOkl45RDwukapER8
-package-id=distributive-0.5.3-2UPyphlyT297nR2Ta64OkA
-package-id=lens-4.15.4-9nqBRPiZXNvCeZCsneO73P
-package-id=linear-1.20.7-8j8Fzr6VhEm585BJLbOBDE
-package-id=doctest-0.11.4-r40kwYfPpaHYzt5MnxLn1
-package=linear-accelerate-0.5
Data.Array.Accelerate.Linear
Data.Array.Accelerate.Linear.Epsilon
Data.Array.Accelerate.Linear.Matrix
Data.Array.Accelerate.Linear.Metric
Data.Array.Accelerate.Linear.Plucker
Data.Array.Accelerate.Linear.Quaternion
Data.Array.Accelerate.Linear.Type
Data.Array.Accelerate.Linear.V0
Data.Array.Accelerate.Linear.V1
Data.Array.Accelerate.Linear.V2
Data.Array.Accelerate.Linear.V3
Data.Array.Accelerate.Linear.V4
Data.Array.Accelerate.Linear.Vector
Data.Array.Accelerate.Linear.Lift

[bergmark]

Feel free to close this if it's too obscure!

[RyanGlScott]

Never mind, I can reproduce this. It turns out I had accelerate-1.1.0.0 installed, but after upgrading to accelerate-1.1.1.0, I experience the same error. Sure enough, the only difference between versions 1.1.0.0 and 1.1.1.0 is:

* Improve and colourise the pretty-printer

So the Show output for Exp does indeed appear to be colorized now, which explains the ANSI escape characters.

@tmcdonell, do you have any ideas on how we might reliably test for Exp's Show output in the face of colorization?

[tmcdonell]

Okay, this should be fixed now. There is a bit of overhead to each doctest now (>>> test $ ...) but I think that is okay.

[tmcdonell]

Now in linear-accelerate-0.5.0.1.