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root / htest / Test / Ganeti / HTools @ 29a30533

# Date Author Comment
29a30533 11/12/2012 01:21 pm Iustin Pop

Remove unsafePerformIO usage

We need to change a few things, most importantly CLI options defaults,
but otherwise we already used the path to files from functions which
were already in the I/O monad, so we don't have to change much of the
code flow.

Additionally, Path.hs now has an explicit export list, to stop...

d66aa238 11/12/2012 01:19 pm Iustin Pop

Change type of program options to 'IO [Options]'

Some options have defaults that depend on the environment, and we
could handle these in two ways:

- use a place-holder value (e.g. data X a = Default | Custom a) that
is later read from the environment
- move the options list to IO monad, where it can read the...

b9612abb 11/07/2012 03:06 pm Iustin Pop

Merge branch 'devel-2.6' into submit

  • devel-2.6:
    Fix compatibility with newer Haskell libraries
    Fix gnt-instance console with xl

Conflicts:
Makefile.am (reordering, fixed)
htools/Ganeti/Confd/Server.hs (hlint fixes on master)
htools/Ganeti/Daemon.hs (hlint)...

879d9290 10/26/2012 03:05 pm Iustin Pop

Move htools backends to a separate directory

Five modules under the HTools/ directories are backend
implementations, so let's move them to a separate directory, to more
clearly show the hierarchy. I wanted to do this for a while, but
merging between branches is always an issue, so let's do it know since...

66ad857a 10/26/2012 02:22 pm Iustin Pop

Fix a few issues found by newer hlint

Testing with a newer hlint found a few minor issues; but all are real,
valid recommendations:

- don't use "if cond then f x else f y", but "f (if cond then x else y)"
- "if a then b else True" is equivalent to the simpler "not a || b"...

942a9a6a 10/22/2012 06:19 pm Iustin Pop

Remove multiple uses of '.&&.' with conjoin

This is just a bit of cleanup. The (.&&.) operator is internally just:

a .&& b = conjoin [a, b]

so let's replace 'a .&&. b .&&. c .&&. d' directly with 'conjoin [a,
b, c, d]'.

Signed-off-by: Iustin Pop <>...

41eb900e 10/22/2012 06:19 pm Iustin Pop

Improve message for (==?) operator

After seeing how nice HUnit formats the error message on failed
'assertEqual', I think we can do better with ==?. Currently it says
(on one line): "Expected equality, but 1 /= 2".

This patch changes the code to format it similar to HUnit:...

dddb2bc9 10/22/2012 02:20 pm Helga Velroyen

Annotated inequality operator for unit test properties

This includes: * The operator (/=?), which checks for inequality and prints
an error message if it encounters equality. (Basically the
negation of the (==?) operator). * Application of this operator in the test property...

77ffd663 10/22/2012 12:31 pm Helga Velroyen

Fix setting of 'failN1' flag for corner case

This patch includes:

  • The 'failN1' flag is now only set if there is strictly less
    memory available than required for failover.
  • Unit tests for that.

Signed-off-by: Helga Velroyen <>
Reviewed-by: Iustin Pop <>

dd77da99 10/22/2012 12:29 pm Helga Velroyen

A few unittests improvements

Small simplifications of other unit tests using the (==?)
operator when possible, and typo fixes.

Signed-off-by: Helga Velroyen <>
Reviewed-by: Iustin Pop <>

a8038349 10/18/2012 01:55 pm Iustin Pop

Remove custom OpResult type/monad

Since we now have the GeneralResult as a multi-purpose monad, we can
remove the custom OpResult monad, and just use 'GeneralResult
FailMode' as our type. This allows removal of a few bits of
specialised infrastructure, relying instead on the generic one....

01e52493 10/15/2012 07:56 pm Iustin Pop

Cleanup HTools.Types/BasicTypes imports

Before we reorganised the source tree, the 'Result' type was exported
from HTools/Types.hs. This changed during the reorg, but at that time
we didn't change the exports; instead, we kept re-exporting it from
the old module for compatibility....

235a0fa5 10/10/2012 06:28 pm Dato Simó

(htest) Text.hs: fix typo in comment

Signed-off-by: Dato Simó <>
Reviewed-by: Iustin Pop <>

22278fa7 10/08/2012 02:06 pm Iustin Pop

Define the actual arguments that are supported by programs

This defines the arguments supported and then modifies the
--help-completion output to include them too.

Signed-off-by: Iustin Pop <>
Reviewed-by: Michael Hanselmann <>

26d62e4c 10/08/2012 12:35 pm Iustin Pop

Rename Ganeti/HTools/Utils.hs to Ganeti/Utils.hs

This is, I believe, the last non-htools specific file that still lived
in the htools directory; it's already widely used in non-htools code,
so let's move it before we add more functionality to this module....

42834645 09/26/2012 02:18 pm Iustin Pop

Remove generic options from individual programs

Currently, we test and require that each individual program (hbal,
etc.) defines/supports the generic options (currently --help and
--version). Even with the test, this is not optimal, since it requires
changes in many places whenever we modify the list of generic options,...

9e679143 09/08/2012 12:20 am Iustin Pop

Improve the `AllocPolicy' test

This test has a few deficiencies, which this patch addresses:

- using arbitrary 1 or 2 node count for allocation is obsolete,
nowadays we need to use a number appropriate for the instance's disk
template (and we should remove that parameter…)...

fb243105 09/08/2012 12:20 am Iustin Pop

Improve the `CanTieredAlloc' test

Currently, this test is very slow. Upon investigation, this is due to
how `tieredAlloc' works:

- tries to allocate one instance
- if failed, shrink the instance by the "most failed" resource
- restart

In this algorithm, if the "most failed" resource is e.g. memory, and...

d83903ee 09/08/2012 12:20 am Iustin Pop

Add new test for checking multi-allocations

This test expands the "single-alloc-no-rebalance" by allocating a few
instances on a small cluster, and ensuring that after we allocate all
of them, either we can't rebalance or if we rebalance the score
improvement is very small....

650e5aa4 09/08/2012 12:20 am Iustin Pop

Improve the prop_Alloc_sane test to detect mis-allocations

Currently, this just checks that a cluster cannot be rebalanced after
a single instance allocation. However, we can also test whether the
allocation decision computed a correct new cluster score, by checking...

5b11f8db 09/05/2012 05:31 pm Iustin Pop

Further hlint fixes

Commit 2cdaf22, “Re-enable standard hlint warnings”, got it almost
right. The only problem is that (confusingly) the default set of hints
is not in HLint.Default, but in HLint.HLint (it includes Default and
some built-ins).

After changing the lint file to correctly include the defaults, we had...

51000365 09/05/2012 05:31 pm Iustin Pop

Rework CLI modules and tests

While investigating how we could test the Daemon.hs module, I realised
that we have a very, erm, sub-optimal situation:

- HTools/CLI.hs has a nice IO/pure separation testing in cmdline
parsing, which allows some basic functionality to be tested, but...

2e0bb81d 09/05/2012 05:18 pm Iustin Pop

Add a small 'passTest' helper

This is symmetric to failTest, and allows us to use it in cases where
we need to return a property.

While replacing 'property True' with it, I saw a case where we can
simplify the use and thus reworked that check.

Signed-off-by: Iustin Pop <>...

7022db83 09/05/2012 05:18 pm Iustin Pop

Replace manual arbitrary instances with genArbitrary

There are a few more that could be replaces, once we start using
appropriate (new)types.

Signed-off-by: Iustin Pop <>
Reviewed-by: René Nussbaumer <>

63b068c1 09/05/2012 04:58 pm Iustin Pop

Add a test helper for simple JSON serialisation testing

While adding yet another JSON serialisation test, I realised that this
can be trivially abstracted; hence this patch, replacing both simple
versions (readJSON . showJSON == id) and the standard version (with...

e09c1fa0 09/05/2012 03:34 pm Iustin Pop

Fixup test suite names

The names were not in a proper hierarchy, leading to inconsistencies
about what they were actually tested.

We change this by reproducing in the test names the relative hierarchy
within the Ganeti directory, leading to nicer test suite names (in...

20bc5360 09/05/2012 03:34 pm Iustin Pop

Simplify property and test case names

Since we now have separate namespaces due to the multi-file split, we
don't need to keep the name of the module in the property names, as we
don't have so many potential conflicts anymore.

We remove the group prefix handling from TestHelper and simply do a...

f3baf5ef 09/04/2012 04:51 pm Iustin Pop

Move JSON.hs and Compat.hs out from under HTools/

These two files are not htools-specific, so let's move them out of the
HTools subdirectory/module hierarchy and directly under Ganeti.

Signed-off-by: Iustin Pop <>
Reviewed-by: René Nussbaumer <>

e1ee7d5a 09/04/2012 04:51 pm Iustin Pop

Split most HTools test code into separate files

Except for Ganeti.HTools.JSON, which needs rename, we split all the
other test suites into separate files.

We have to add another common test helper, due to import dependencies
(sigh), but otherwise this split is pretty straightforward....