t/t6016-rev-list-graph-simplify-history.sh

   1 #!/bin/sh
   2
   3 # There's more than one "correct" way to represent the history graphically.
   4 # These tests depend on the current behavior of the graphing code.  If the
   5 # graphing code is ever changed to draw the output differently, these tests
   6 # cases will need to be updated to know about the new layout.
   7
   8 test_description='--graph and simplified history'
   9
  10 . ./test-lib.sh
  11
  12 test_expect_success 'set up rev-list --graph test' '
  13         # 3 commits on branch A
  14         test_commit A1 foo.txt &&
  15         test_commit A2 bar.txt &&
  16         test_commit A3 bar.txt &&
  17         git branch -m master A &&
  18
  19         # 2 commits on branch B, started from A1
  20         git checkout -b B A1 &&
  21         test_commit B1 foo.txt &&
  22         test_commit B2 abc.txt &&
  23
  24         # 2 commits on branch C, started from A2
  25         git checkout -b C A2 &&
  26         test_commit C1 xyz.txt &&
  27         test_commit C2 xyz.txt &&
  28
  29         # Octopus merge B and C into branch A
  30         git checkout A &&
  31         git merge B C &&
  32         git tag A4
  33
  34         test_commit A5 bar.txt &&
  35
  36         # More commits on C, then merge C into A
  37         git checkout C &&
  38         test_commit C3 foo.txt &&
  39         test_commit C4 bar.txt &&
  40         git checkout A &&
  41         git merge -s ours C &&
  42         git tag A6
  43
  44         test_commit A7 bar.txt &&
  45
  46         # Store commit names in variables for later use
  47         A1=$(git rev-parse --verify A1) &&
  48         A2=$(git rev-parse --verify A2) &&
  49         A3=$(git rev-parse --verify A3) &&
  50         A4=$(git rev-parse --verify A4) &&
  51         A5=$(git rev-parse --verify A5) &&
  52         A6=$(git rev-parse --verify A6) &&
  53         A7=$(git rev-parse --verify A7) &&
  54         B1=$(git rev-parse --verify B1) &&
  55         B2=$(git rev-parse --verify B2) &&
  56         C1=$(git rev-parse --verify C1) &&
  57         C2=$(git rev-parse --verify C2) &&
  58         C3=$(git rev-parse --verify C3) &&
  59         C4=$(git rev-parse --verify C4)
  60         '
  61
  62 test_expect_success '--graph --all' '
  63         rm -f expected &&
  64         echo "* $A7" >> expected &&
  65         echo "*   $A6" >> expected &&
  66         echo "|\\  " >> expected &&
  67         echo "| * $C4" >> expected &&
  68         echo "| * $C3" >> expected &&
  69         echo "* | $A5" >> expected &&
  70         echo "| |     " >> expected &&
  71         echo "|  \\    " >> expected &&
  72         echo "*-. \\   $A4" >> expected &&
  73         echo "|\\ \\ \\  " >> expected &&
  74         echo "| | |/  " >> expected &&
  75         echo "| | * $C2" >> expected &&
  76         echo "| | * $C1" >> expected &&
  77         echo "| * | $B2" >> expected &&
  78         echo "| * | $B1" >> expected &&
  79         echo "* | | $A3" >> expected &&
  80         echo "| |/  " >> expected &&
  81         echo "|/|   " >> expected &&
  82         echo "* | $A2" >> expected &&
  83         echo "|/  " >> expected &&
  84         echo "* $A1" >> expected &&
  85         git rev-list --graph --all > actual &&
  86         test_cmp expected actual
  87         '
  88
  89 # Make sure the graph_is_interesting() code still realizes
  90 # that undecorated merges are interesting, even with --simplify-by-decoration
  91 test_expect_success '--graph --simplify-by-decoration' '
  92         rm -f expected &&
  93         git tag -d A4
  94         echo "* $A7" >> expected &&
  95         echo "*   $A6" >> expected &&
  96         echo "|\\  " >> expected &&
  97         echo "| * $C4" >> expected &&
  98         echo "| * $C3" >> expected &&
  99         echo "* | $A5" >> expected &&
 100         echo "| |     " >> expected &&
 101         echo "|  \\    " >> expected &&
 102         echo "*-. \\   $A4" >> expected &&
 103         echo "|\\ \\ \\  " >> expected &&
 104         echo "| | |/  " >> expected &&
 105         echo "| | * $C2" >> expected &&
 106         echo "| | * $C1" >> expected &&
 107         echo "| * | $B2" >> expected &&
 108         echo "| * | $B1" >> expected &&
 109         echo "* | | $A3" >> expected &&
 110         echo "| |/  " >> expected &&
 111         echo "|/|   " >> expected &&
 112         echo "* | $A2" >> expected &&
 113         echo "|/  " >> expected &&
 114         echo "* $A1" >> expected &&
 115         git rev-list --graph --all --simplify-by-decoration > actual &&
 116         test_cmp expected actual
 117         '
 118
 119 # Get rid of all decorations on branch B, and graph with it simplified away
 120 test_expect_success '--graph --simplify-by-decoration prune branch B' '
 121         rm -f expected &&
 122         git tag -d B2
 123         git tag -d B1
 124         git branch -d B
 125         echo "* $A7" >> expected &&
 126         echo "*   $A6" >> expected &&
 127         echo "|\\  " >> expected &&
 128         echo "| * $C4" >> expected &&
 129         echo "| * $C3" >> expected &&
 130         echo "* | $A5" >> expected &&
 131         echo "* |   $A4" >> expected &&
 132         echo "|\\ \\  " >> expected &&
 133         echo "| |/  " >> expected &&
 134         echo "| * $C2" >> expected &&
 135         echo "| * $C1" >> expected &&
 136         echo "* | $A3" >> expected &&
 137         echo "|/  " >> expected &&
 138         echo "* $A2" >> expected &&
 139         echo "* $A1" >> expected &&
 140         git rev-list --graph --simplify-by-decoration --all > actual &&
 141         test_cmp expected actual
 142         '
 143
 144 test_expect_success '--graph --full-history -- bar.txt' '
 145         rm -f expected &&
 146         git tag -d B2
 147         git tag -d B1
 148         git branch -d B
 149         echo "* $A7" >> expected &&
 150         echo "*   $A6" >> expected &&
 151         echo "|\\  " >> expected &&
 152         echo "| * $C4" >> expected &&
 153         echo "* | $A5" >> expected &&
 154         echo "* |   $A4" >> expected &&
 155         echo "|\\ \\  " >> expected &&
 156         echo "| |/  " >> expected &&
 157         echo "* | $A3" >> expected &&
 158         echo "|/  " >> expected &&
 159         echo "* $A2" >> expected &&
 160         git rev-list --graph --full-history --all -- bar.txt > actual &&
 161         test_cmp expected actual
 162         '
 163
 164 test_expect_success '--graph --full-history --simplify-merges -- bar.txt' '
 165         rm -f expected &&
 166         git tag -d B2
 167         git tag -d B1
 168         git branch -d B
 169         echo "* $A7" >> expected &&
 170         echo "*   $A6" >> expected &&
 171         echo "|\\  " >> expected &&
 172         echo "| * $C4" >> expected &&
 173         echo "* | $A5" >> expected &&
 174         echo "* | $A3" >> expected &&
 175         echo "|/  " >> expected &&
 176         echo "* $A2" >> expected &&
 177         git rev-list --graph --full-history --simplify-merges --all \
 178                 -- bar.txt > actual &&
 179         test_cmp expected actual
 180         '
 181
 182 test_expect_success '--graph -- bar.txt' '
 183         rm -f expected &&
 184         git tag -d B2
 185         git tag -d B1
 186         git branch -d B
 187         echo "* $A7" >> expected &&
 188         echo "* $A5" >> expected &&
 189         echo "* $A3" >> expected &&
 190         echo "| * $C4" >> expected &&
 191         echo "|/  " >> expected &&
 192         echo "* $A2" >> expected &&
 193         git rev-list --graph --all -- bar.txt > actual &&
 194         test_cmp expected actual
 195         '
 196
 197 test_expect_success '--graph --sparse -- bar.txt' '
 198         rm -f expected &&
 199         git tag -d B2
 200         git tag -d B1
 201         git branch -d B
 202         echo "* $A7" >> expected &&
 203         echo "* $A6" >> expected &&
 204         echo "* $A5" >> expected &&
 205         echo "* $A4" >> expected &&
 206         echo "* $A3" >> expected &&
 207         echo "| * $C4" >> expected &&
 208         echo "| * $C3" >> expected &&
 209         echo "| * $C2" >> expected &&
 210         echo "| * $C1" >> expected &&
 211         echo "|/  " >> expected &&
 212         echo "* $A2" >> expected &&
 213         echo "* $A1" >> expected &&
 214         git rev-list --graph --sparse --all -- bar.txt > actual &&
 215         test_cmp expected actual
 216         '
 217
 218 test_expect_success '--graph ^C4' '
 219         rm -f expected &&
 220         echo "* $A7" >> expected &&
 221         echo "* $A6" >> expected &&
 222         echo "* $A5" >> expected &&
 223         echo "*   $A4" >> expected &&
 224         echo "|\\  " >> expected &&
 225         echo "| * $B2" >> expected &&
 226         echo "| * $B1" >> expected &&
 227         echo "* $A3" >> expected &&
 228         git rev-list --graph --all ^C4 > actual &&
 229         test_cmp expected actual
 230         '
 231
 232 test_expect_success '--graph ^C3' '
 233         rm -f expected &&
 234         echo "* $A7" >> expected &&
 235         echo "*   $A6" >> expected &&
 236         echo "|\\  " >> expected &&
 237         echo "| * $C4" >> expected &&
 238         echo "* $A5" >> expected &&
 239         echo "*   $A4" >> expected &&
 240         echo "|\\  " >> expected &&
 241         echo "| * $B2" >> expected &&
 242         echo "| * $B1" >> expected &&
 243         echo "* $A3" >> expected &&
 244         git rev-list --graph --all ^C3 > actual &&
 245         test_cmp expected actual
 246         '
 247
 248 # I don't think the ordering of the boundary commits is really
 249 # that important, but this test depends on it.  If the ordering ever changes
 250 # in the code, we'll need to update this test.
 251 test_expect_success '--graph --boundary ^C3' '
 252         rm -f expected &&
 253         echo "* $A7" >> expected &&
 254         echo "*   $A6" >> expected &&
 255         echo "|\\  " >> expected &&
 256         echo "| * $C4" >> expected &&
 257         echo "* | $A5" >> expected &&
 258         echo "| |     " >> expected &&
 259         echo "|  \\    " >> expected &&
 260         echo "*-. \\   $A4" >> expected &&
 261         echo "|\\ \\ \\  " >> expected &&
 262         echo "| * | | $B2" >> expected &&
 263         echo "| * | | $B1" >> expected &&
 264         echo "* | | | $A3" >> expected &&
 265         echo "o | | | $A2" >> expected &&
 266         echo "|/ / /  " >> expected &&
 267         echo "o | | $A1" >> expected &&
 268         echo " / /  " >> expected &&
 269         echo "| o $C3" >> expected &&
 270         echo "|/  " >> expected &&
 271         echo "o $C2" >> expected &&
 272         git rev-list --graph --boundary --all ^C3 > actual &&
 273         test_cmp expected actual
 274         '
 275
 276 test_done