root / test / hs / Test / Ganeti / HTools / Graph.hs @ efa6dd08
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1 | 8e6623c8 | Guido Trotter | {-# LANGUAGE TemplateHaskell #-} |
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2 | 8e6623c8 | Guido Trotter | {-# OPTIONS_GHC -fno-warn-orphans #-} |
3 | 8e6623c8 | Guido Trotter | |
4 | 8e6623c8 | Guido Trotter | {-| Unittests for Ganeti.Htools.Graph |
5 | 8e6623c8 | Guido Trotter | |
6 | 8e6623c8 | Guido Trotter | -} |
7 | 8e6623c8 | Guido Trotter | |
8 | 8e6623c8 | Guido Trotter | {- |
9 | 8e6623c8 | Guido Trotter | |
10 | 8e6623c8 | Guido Trotter | Copyright (C) 2009, 2010, 2011, 2012 Google Inc. |
11 | 8e6623c8 | Guido Trotter | |
12 | 8e6623c8 | Guido Trotter | This program is free software; you can redistribute it and/or modify |
13 | 8e6623c8 | Guido Trotter | it under the terms of the GNU General Public License as published by |
14 | 8e6623c8 | Guido Trotter | the Free Software Foundation; either version 2 of the License, or |
15 | 8e6623c8 | Guido Trotter | (at your option) any later version. |
16 | 8e6623c8 | Guido Trotter | |
17 | 8e6623c8 | Guido Trotter | This program is distributed in the hope that it will be useful, but |
18 | 8e6623c8 | Guido Trotter | WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | 8e6623c8 | Guido Trotter | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
20 | 8e6623c8 | Guido Trotter | General Public License for more details. |
21 | 8e6623c8 | Guido Trotter | |
22 | 8e6623c8 | Guido Trotter | You should have received a copy of the GNU General Public License |
23 | 8e6623c8 | Guido Trotter | along with this program; if not, write to the Free Software |
24 | 8e6623c8 | Guido Trotter | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
25 | 8e6623c8 | Guido Trotter | 02110-1301, USA. |
26 | 8e6623c8 | Guido Trotter | |
27 | 8e6623c8 | Guido Trotter | -} |
28 | 8e6623c8 | Guido Trotter | |
29 | 8e6623c8 | Guido Trotter | module Test.Ganeti.HTools.Graph (testHTools_Graph) where |
30 | 8e6623c8 | Guido Trotter | |
31 | 8e6623c8 | Guido Trotter | import Test.QuickCheck |
32 | 8e6623c8 | Guido Trotter | import Test.HUnit |
33 | 8e6623c8 | Guido Trotter | |
34 | 8e6623c8 | Guido Trotter | import Test.Ganeti.TestHelper |
35 | 8e6623c8 | Guido Trotter | import Test.Ganeti.TestCommon |
36 | 8e6623c8 | Guido Trotter | |
37 | 8e6623c8 | Guido Trotter | import Ganeti.HTools.Graph |
38 | 8e6623c8 | Guido Trotter | |
39 | 8e6623c8 | Guido Trotter | import qualified Data.Graph as Graph |
40 | 8e6623c8 | Guido Trotter | import qualified Data.IntMap as IntMap |
41 | 8e6623c8 | Guido Trotter | |
42 | 8e6623c8 | Guido Trotter | {-# ANN module "HLint: ignore Use camelCase" #-} |
43 | 8e6623c8 | Guido Trotter | |
44 | 8e6623c8 | Guido Trotter | data TestableGraph = TestableGraph Graph.Graph deriving (Show) |
45 | 8e6623c8 | Guido Trotter | data TestableClique = TestableClique Graph.Graph deriving (Show) |
46 | 8e6623c8 | Guido Trotter | |
47 | 8e6623c8 | Guido Trotter | -- | Generate node bounds and edges for an undirected graph. |
48 | 8e6623c8 | Guido Trotter | -- A graph is undirected if for every (a, b) edge there is a |
49 | 8e6623c8 | Guido Trotter | -- corresponding (b, a) one. |
50 | 8e6623c8 | Guido Trotter | undirEdges :: Gen (Graph.Bounds, [Graph.Edge]) |
51 | 8e6623c8 | Guido Trotter | undirEdges = sized undirEdges' |
52 | 8e6623c8 | Guido Trotter | where |
53 | 8e6623c8 | Guido Trotter | undirEdges' 0 = return ((0, 0), []) |
54 | 8e6623c8 | Guido Trotter | undirEdges' n = do |
55 | 8e6623c8 | Guido Trotter | maxv <- choose (1, n) |
56 | 8e6623c8 | Guido Trotter | edges <- listOf1 $ do |
57 | 8e6623c8 | Guido Trotter | i <- choose (0, maxv) |
58 | 8e6623c8 | Guido Trotter | j <- choose (0, maxv) `suchThat` (/= i) |
59 | 8e6623c8 | Guido Trotter | return [(i, j), (j, i)] |
60 | 8e6623c8 | Guido Trotter | return ((0, maxv), concat edges) |
61 | 8e6623c8 | Guido Trotter | |
62 | 8e6623c8 | Guido Trotter | -- | Generate node bounds and edges for a clique. |
63 | 8e6623c8 | Guido Trotter | -- In a clique all nodes are directly connected to each other. |
64 | 8e6623c8 | Guido Trotter | cliqueEdges :: Gen (Graph.Bounds, [Graph.Edge]) |
65 | 8e6623c8 | Guido Trotter | cliqueEdges = sized cliqueEdges' |
66 | 8e6623c8 | Guido Trotter | where |
67 | 8e6623c8 | Guido Trotter | cliqueEdges' 0 = return ((0, 0), []) |
68 | 8e6623c8 | Guido Trotter | cliqueEdges' n = do |
69 | 8e6623c8 | Guido Trotter | maxv <- choose (0, n) |
70 | 8e6623c8 | Guido Trotter | let edges = [(x, y) | x <- [0..maxv], y <- [0..maxv], x /= y] |
71 | 8e6623c8 | Guido Trotter | return ((0, maxv), edges) |
72 | 8e6623c8 | Guido Trotter | |
73 | 8e6623c8 | Guido Trotter | instance Arbitrary TestableGraph where |
74 | 8e6623c8 | Guido Trotter | arbitrary = do |
75 | 8e6623c8 | Guido Trotter | (mybounds, myedges) <- undirEdges |
76 | 8e6623c8 | Guido Trotter | return . TestableGraph $ Graph.buildG mybounds myedges |
77 | 8e6623c8 | Guido Trotter | |
78 | 8e6623c8 | Guido Trotter | instance Arbitrary TestableClique where |
79 | 8e6623c8 | Guido Trotter | arbitrary = do |
80 | 8e6623c8 | Guido Trotter | (mybounds, myedges) <- cliqueEdges |
81 | 8e6623c8 | Guido Trotter | return . TestableClique $ Graph.buildG mybounds myedges |
82 | 8e6623c8 | Guido Trotter | |
83 | 8e6623c8 | Guido Trotter | -- | Check that the empty vertex color map is empty. |
84 | 8e6623c8 | Guido Trotter | case_emptyVertColorMapNull :: Assertion |
85 | 8e6623c8 | Guido Trotter | case_emptyVertColorMapNull = assertBool "" $ IntMap.null emptyVertColorMap |
86 | 8e6623c8 | Guido Trotter | |
87 | 8e6623c8 | Guido Trotter | -- | Check that the empty vertex color map is zero in size. |
88 | 8e6623c8 | Guido Trotter | case_emptyVertColorMapEmpty :: Assertion |
89 | 8e6623c8 | Guido Trotter | case_emptyVertColorMapEmpty = |
90 | 8e6623c8 | Guido Trotter | assertEqual "" 0 $ IntMap.size emptyVertColorMap |
91 | 8e6623c8 | Guido Trotter | |
92 | 34a21cc4 | Guido Trotter | -- | Check if each two consecutive elements on a list |
93 | 34a21cc4 | Guido Trotter | -- respect a given condition. |
94 | 34a21cc4 | Guido Trotter | anyTwo :: (a -> a -> Bool) -> [a] -> Bool |
95 | 34a21cc4 | Guido Trotter | anyTwo _ [] = True |
96 | 34a21cc4 | Guido Trotter | anyTwo _ [_] = True |
97 | 34a21cc4 | Guido Trotter | anyTwo op (x:y:xs) = (x `op` y) && anyTwo op (y:xs) |
98 | 34a21cc4 | Guido Trotter | |
99 | 34a21cc4 | Guido Trotter | -- | Check order of vertices returned by verticesByDegreeAsc. |
100 | cce30754 | Guido Trotter | prop_verticesByDegreeAscAsc :: TestableGraph -> Bool |
101 | cce30754 | Guido Trotter | prop_verticesByDegreeAscAsc (TestableGraph g) = anyTwo (<=) (degrees asc) |
102 | 34a21cc4 | Guido Trotter | where degrees = map (length . neighbors g) |
103 | 34a21cc4 | Guido Trotter | asc = verticesByDegreeAsc g |
104 | 34a21cc4 | Guido Trotter | |
105 | 34a21cc4 | Guido Trotter | -- | Check order of vertices returned by verticesByDegreeDesc. |
106 | cce30754 | Guido Trotter | prop_verticesByDegreeDescDesc :: TestableGraph -> Bool |
107 | cce30754 | Guido Trotter | prop_verticesByDegreeDescDesc (TestableGraph g) = anyTwo (>=) (degrees desc) |
108 | 34a21cc4 | Guido Trotter | where degrees = map (length . neighbors g) |
109 | 34a21cc4 | Guido Trotter | desc = verticesByDegreeDesc g |
110 | 34a21cc4 | Guido Trotter | |
111 | faef859e | Guido Trotter | -- | Check that our generated graphs are colorable |
112 | cce30754 | Guido Trotter | prop_isColorableTestableGraph :: TestableGraph -> Bool |
113 | cce30754 | Guido Trotter | prop_isColorableTestableGraph (TestableGraph g) = isColorable g |
114 | faef859e | Guido Trotter | |
115 | faef859e | Guido Trotter | -- | Check that our generated graphs are colorable |
116 | cce30754 | Guido Trotter | prop_isColorableTestableClique :: TestableClique -> Bool |
117 | cce30754 | Guido Trotter | prop_isColorableTestableClique (TestableClique g) = isColorable g |
118 | faef859e | Guido Trotter | |
119 | 8e6623c8 | Guido Trotter | -- | Check that the given algorithm colors a clique with the same number of |
120 | 8e6623c8 | Guido Trotter | -- colors as the vertices number. |
121 | c94f9990 | Guido Trotter | prop_colorClique :: (Graph.Graph -> VertColorMap) -> TestableClique -> Property |
122 | 8e6623c8 | Guido Trotter | prop_colorClique alg (TestableClique g) = numvertices ==? numcolors |
123 | c94f9990 | Guido Trotter | where numcolors = (IntMap.size . colorVertMap) $ alg g |
124 | 8e6623c8 | Guido Trotter | numvertices = length (Graph.vertices g) |
125 | 8e6623c8 | Guido Trotter | |
126 | 8e6623c8 | Guido Trotter | -- | Specific check for the LF algorithm. |
127 | 8e6623c8 | Guido Trotter | prop_colorLFClique :: TestableClique -> Property |
128 | 8e6623c8 | Guido Trotter | prop_colorLFClique = prop_colorClique colorLF |
129 | 8e6623c8 | Guido Trotter | |
130 | 742bd043 | Guido Trotter | -- | Specific check for the Dsatur algorithm. |
131 | 742bd043 | Guido Trotter | prop_colorDsaturClique :: TestableClique -> Property |
132 | 742bd043 | Guido Trotter | prop_colorDsaturClique = prop_colorClique colorDsatur |
133 | 742bd043 | Guido Trotter | |
134 | 8b50de5c | Guido Trotter | -- | Specific check for the Dcolor algorithm. |
135 | 8b50de5c | Guido Trotter | prop_colorDcolorClique :: TestableClique -> Property |
136 | 8b50de5c | Guido Trotter | prop_colorDcolorClique = prop_colorClique colorDcolor |
137 | 8b50de5c | Guido Trotter | |
138 | 8e6623c8 | Guido Trotter | -- Check that all nodes are colored. |
139 | c94f9990 | Guido Trotter | prop_colorAllNodes :: (Graph.Graph -> VertColorMap) |
140 | 8e6623c8 | Guido Trotter | -> TestableGraph |
141 | 8e6623c8 | Guido Trotter | -> Property |
142 | 8e6623c8 | Guido Trotter | prop_colorAllNodes alg (TestableGraph g) = numvertices ==? numcolored |
143 | c94f9990 | Guido Trotter | where numcolored = IntMap.fold ((+) . length) 0 vcMap |
144 | c94f9990 | Guido Trotter | vcMap = colorVertMap $ alg g |
145 | 8e6623c8 | Guido Trotter | numvertices = length (Graph.vertices g) |
146 | 8e6623c8 | Guido Trotter | |
147 | 8e6623c8 | Guido Trotter | -- | Specific check for the LF algorithm. |
148 | 8e6623c8 | Guido Trotter | prop_colorLFAllNodes :: TestableGraph -> Property |
149 | 8e6623c8 | Guido Trotter | prop_colorLFAllNodes = prop_colorAllNodes colorLF |
150 | 8e6623c8 | Guido Trotter | |
151 | 742bd043 | Guido Trotter | -- | Specific check for the Dsatur algorithm. |
152 | 742bd043 | Guido Trotter | prop_colorDsaturAllNodes :: TestableGraph -> Property |
153 | 742bd043 | Guido Trotter | prop_colorDsaturAllNodes = prop_colorAllNodes colorDsatur |
154 | 742bd043 | Guido Trotter | |
155 | 8b50de5c | Guido Trotter | -- | Specific check for the Dcolor algorithm. |
156 | 8b50de5c | Guido Trotter | prop_colorDcolorAllNodes :: TestableGraph -> Property |
157 | 8b50de5c | Guido Trotter | prop_colorDcolorAllNodes = prop_colorAllNodes colorDcolor |
158 | 8b50de5c | Guido Trotter | |
159 | c94f9990 | Guido Trotter | -- | Check that no two vertices sharing the same edge have the same color. |
160 | c94f9990 | Guido Trotter | prop_colorProper :: (Graph.Graph -> VertColorMap) -> TestableGraph -> Bool |
161 | c94f9990 | Guido Trotter | prop_colorProper alg (TestableGraph g) = all isEdgeOk $ Graph.edges g |
162 | c94f9990 | Guido Trotter | where isEdgeOk :: Graph.Edge -> Bool |
163 | c94f9990 | Guido Trotter | isEdgeOk (v1, v2) = color v1 /= color v2 |
164 | c94f9990 | Guido Trotter | color v = cMap IntMap.! v |
165 | c94f9990 | Guido Trotter | cMap = alg g |
166 | c94f9990 | Guido Trotter | |
167 | c94f9990 | Guido Trotter | -- | Specific check for the LF algorithm. |
168 | c94f9990 | Guido Trotter | prop_colorLFProper :: TestableGraph -> Bool |
169 | c94f9990 | Guido Trotter | prop_colorLFProper = prop_colorProper colorLF |
170 | c94f9990 | Guido Trotter | |
171 | c94f9990 | Guido Trotter | -- | Specific check for the Dsatur algorithm. |
172 | c94f9990 | Guido Trotter | prop_colorDsaturProper :: TestableGraph -> Bool |
173 | c94f9990 | Guido Trotter | prop_colorDsaturProper = prop_colorProper colorDsatur |
174 | c94f9990 | Guido Trotter | |
175 | c94f9990 | Guido Trotter | -- | Specific check for the Dcolor algorithm. |
176 | c94f9990 | Guido Trotter | prop_colorDcolorProper :: TestableGraph -> Bool |
177 | c94f9990 | Guido Trotter | prop_colorDcolorProper = prop_colorProper colorDcolor |
178 | c94f9990 | Guido Trotter | |
179 | 8e6623c8 | Guido Trotter | -- | List of tests for the Graph module. |
180 | 8e6623c8 | Guido Trotter | testSuite "HTools/Graph" |
181 | 8e6623c8 | Guido Trotter | [ 'case_emptyVertColorMapNull |
182 | 8e6623c8 | Guido Trotter | , 'case_emptyVertColorMapEmpty |
183 | 34a21cc4 | Guido Trotter | , 'prop_verticesByDegreeAscAsc |
184 | 34a21cc4 | Guido Trotter | , 'prop_verticesByDegreeDescDesc |
185 | 8e6623c8 | Guido Trotter | , 'prop_colorLFClique |
186 | 742bd043 | Guido Trotter | , 'prop_colorDsaturClique |
187 | 8b50de5c | Guido Trotter | , 'prop_colorDcolorClique |
188 | 8e6623c8 | Guido Trotter | , 'prop_colorLFAllNodes |
189 | 742bd043 | Guido Trotter | , 'prop_colorDsaturAllNodes |
190 | 8b50de5c | Guido Trotter | , 'prop_colorDcolorAllNodes |
191 | c94f9990 | Guido Trotter | , 'prop_colorLFProper |
192 | c94f9990 | Guido Trotter | , 'prop_colorDsaturProper |
193 | c94f9990 | Guido Trotter | , 'prop_colorDcolorProper |
194 | faef859e | Guido Trotter | , 'prop_isColorableTestableGraph |
195 | faef859e | Guido Trotter | , 'prop_isColorableTestableClique |
196 | 8e6623c8 | Guido Trotter | ] |