[PATCH 2 of 8 "STABLE] test: don't trust delta bases from the bundle in test-sparse-revlog.t

[Pierre-Yves David]

# HG changeset patch
# User Pierre-Yves David <pierre-yves.david at octobus.net>
# Date 1551034611 -3600
#      Sun Feb 24 19:56:51 2019 +0100
# Branch stable
# Node ID e97acc97f716317d874b76b3b5ee7a4f2e2bd1d6
# Parent  6422b5fbdf46904f125aa5dd8309be5c117cfc91
# EXP-Topic test-sparse-revlog
# Available At https://bitbucket.org/octobus/mercurial-devel/
#              hg pull https://bitbucket.org/octobus/mercurial-devel/ -r e97acc97f716
test: don't trust delta bases from the bundle in test-sparse-revlog.t

The point of the test is to check the strategy sparse-revlog uses to pick delta
base. If we trust the bases used in the bundle, we no longer fully test this
logic.

In order to force this computation we have to use the side effect of a legacy
format configuration `format.generaldelta`.  The lack of a more official way to
do so will be fixed in a later changeset.

diff --git a/tests/test-sparse-revlog.t b/tests/test-sparse-revlog.t
--- a/tests/test-sparse-revlog.t
+++ b/tests/test-sparse-revlog.t
@@ -28,6 +28,8 @@ repeatedly while some of it changes rare
   > maxchainlen = 15
   > [storage]
   > revlog.optimize-delta-parent-choice = yes
+  > [format]
+  > generaldelta = yes
   > EOF
   $ hg init sparse-repo
   $ cd sparse-repo
@@ -78,7 +80,7 @@ repeatedly while some of it changes rare
   
 
   $ f -s .hg/store/data/*.d
-  .hg/store/data/_s_p_a_r_s_e-_r_e_v_l_o_g-_t_e_s_t-_f_i_l_e.d: size=65281524
+  .hg/store/data/_s_p_a_r_s_e-_r_e_v_l_o_g-_t_e_s_t-_f_i_l_e.d: size=63327412
   $ hg debugrevlog *
   format : 1
   flags  : generaldelta
@@ -90,45 +92,45 @@ repeatedly while some of it changes rare
       empty     :        0 ( 0.00%)
                      text  :        0 (100.00%)
                      delta :        0 (100.00%)
-      snapshot  :      372 ( 7.44%)
-        lvl-0   :              4 ( 0.08%)
-        lvl-1   :             25 ( 0.50%)
-        lvl-2   :             74 ( 1.48%)
-        lvl-3   :            117 ( 2.34%)
-        lvl-4   :            152 ( 3.04%)
-      deltas    :     4629 (92.56%)
-  revision size : 65281524
-      snapshot  :  9910992 (15.18%)
-        lvl-0   :         804162 ( 1.23%)
-        lvl-1   :        1816378 ( 2.78%)
-        lvl-2   :        2355855 ( 3.61%)
-        lvl-3   :        2557680 ( 3.92%)
-        lvl-4   :        2376917 ( 3.64%)
-      deltas    : 55370532 (84.82%)
+      snapshot  :      383 ( 7.66%)
+        lvl-0   :              3 ( 0.06%)
+        lvl-1   :             20 ( 0.40%)
+        lvl-2   :             68 ( 1.36%)
+        lvl-3   :            112 ( 2.24%)
+        lvl-4   :            180 ( 3.60%)
+      deltas    :     4618 (92.34%)
+  revision size : 63327412
+      snapshot  :  9886710 (15.61%)
+        lvl-0   :         603104 ( 0.95%)
+        lvl-1   :        1559991 ( 2.46%)
+        lvl-2   :        2295592 ( 3.62%)
+        lvl-3   :        2531199 ( 4.00%)
+        lvl-4   :        2896824 ( 4.57%)
+      deltas    : 53440702 (84.39%)
   
   chunks        :     5001
       0x78 (x)  :     5001 (100.00%)
-  chunks size   : 65281524
-      0x78 (x)  : 65281524 (100.00%)
+  chunks size   : 63327412
+      0x78 (x)  : 63327412 (100.00%)
   
   avg chain length  :        9
   max chain length  :       15
-  max chain reach   : 27873839
-  compression ratio :       26
+  max chain reach   : 28248745
+  compression ratio :       27
   
   uncompressed data size (min/max/avg) : 346468 / 346472 / 346471
-  full revision size (min/max/avg)     : 200973 / 201094 / 201040
-  inter-snapshot size (min/max/avg)    : 11586 / 170448 / 24746
-      level-1   (min/max/avg)          : 14021 / 170448 / 72655
-      level-2   (min/max/avg)          : 11616 / 81152 / 31835
-      level-3   (min/max/avg)          : 11607 / 42813 / 21860
-      level-4   (min/max/avg)          : 11586 / 21590 / 15637
-  delta size (min/max/avg)             : 10649 / 166014 / 11961
+  full revision size (min/max/avg)     : 201008 / 201050 / 201034
+  inter-snapshot size (min/max/avg)    : 11596 / 168150 / 24430
+      level-1   (min/max/avg)          : 16653 / 168150 / 77999
+      level-2   (min/max/avg)          : 12951 / 85595 / 33758
+      level-3   (min/max/avg)          : 11608 / 43029 / 22599
+      level-4   (min/max/avg)          : 11596 / 21632 / 16093
+  delta size (min/max/avg)             : 10649 / 107163 / 11572
   
-  deltas against prev  : 3839 (82.93%)
-      where prev = p1  : 3839     (100.00%)
+  deltas against prev  : 3910 (84.67%)
+      where prev = p1  : 3910     (100.00%)
       where prev = p2  :    0     ( 0.00%)
       other            :    0     ( 0.00%)
-  deltas against p1    :  634 (13.70%)
-  deltas against p2    :   62 ( 1.34%)
-  deltas against other :   94 ( 2.03%)
+  deltas against p1    :  648 (14.03%)
+  deltas against p2    :   60 ( 1.30%)
+  deltas against other :    0 ( 0.00%)