t3427: condense the unnecessarily repetitive test cases into three

Previously, this test script performed essentially three rebases and verified breakages by testing the post-rebase commits' messages. To do so, the rebases were performed multiple times, though, once per commit message to test. This wastes electricity (and CO2) and time. Let's condense the test cases to the essential number: the number of different rebases to validate. On Windows, where the scripted nature of the `--preserve-merges` backend hurts performance rather badly, this reduces the overall runtime in this developer's setup from ~1m to ~28s while still performing the exact same testing as before. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Johannes Schindelin committed Jul 31, 2019 at 08:18 UTC b8c6f24255d3224438ee8c591b7b08d665433b6b
1 file changed +11 -50
t/t3427-rebase-subtree.sh
+11 -50
@@ -64,70 +64,31 @@ test_expect_success 'setup' '
64 '
65
66 # FAILURE: Does not preserve master4.
67 -test_expect_failure REBASE_P \
68 - 'Rebase -Xsubtree --preserve-merges --onto commit 4' '
67 +test_expect_failure REBASE_P 'Rebase -Xsubtree --preserve-merges --onto commit' '
68 reset_rebase &&
70 - git checkout -b rebase-preserve-merges-4 to-rebase &&
71 - git rebase -Xsubtree=files_subtree --preserve-merges --onto files-master master &&
72 - verbose test "$(commit_message HEAD~)" = "files_subtree/master4"
73 -'
74 -
75 -# FAILURE: Does not preserve master5.
76 -test_expect_failure REBASE_P \
77 - 'Rebase -Xsubtree --preserve-merges --onto commit 5' '
78 - reset_rebase &&
79 - git checkout -b rebase-preserve-merges-5 to-rebase &&
69 + git checkout -b rebase-preserve-merges to-rebase &&
70 git rebase -Xsubtree=files_subtree --preserve-merges --onto files-master master &&
71 + verbose test "$(commit_message HEAD~)" = "files_subtree/master4" &&
72 verbose test "$(commit_message HEAD)" = "files_subtree/master5"
73 '
74
75 # FAILURE: Does not preserve master4.
85 -test_expect_failure REBASE_P \
86 - 'Rebase -Xsubtree --keep-empty --preserve-merges --onto commit 4' '
76 +test_expect_failure REBASE_P 'Rebase -Xsubtree --keep-empty --preserve-merges --onto commit' '
77 reset_rebase &&
88 - git checkout -b rebase-keep-empty-4 to-rebase &&
89 - git rebase -Xsubtree=files_subtree --keep-empty --preserve-merges --onto files-master master &&
90 - verbose test "$(commit_message HEAD~2)" = "files_subtree/master4"
91 -'
92 -
93 -# FAILURE: Does not preserve master5.
94 -test_expect_failure REBASE_P \
95 - 'Rebase -Xsubtree --keep-empty --preserve-merges --onto commit 5' '
96 - reset_rebase &&
97 - git checkout -b rebase-keep-empty-5 to-rebase &&
98 - git rebase -Xsubtree=files_subtree --keep-empty --preserve-merges --onto files-master master &&
99 - verbose test "$(commit_message HEAD~)" = "files_subtree/master5"
100 -'
101 -
102 -# FAILURE: Does not preserve Empty.
103 -test_expect_failure REBASE_P \
104 - 'Rebase -Xsubtree --keep-empty --preserve-merges --onto empty commit' '
105 - reset_rebase &&
106 - git checkout -b rebase-keep-empty-empty to-rebase &&
78 + git checkout -b rebase-keep-empty to-rebase &&
79 git rebase -Xsubtree=files_subtree --keep-empty --preserve-merges --onto files-master master &&
80 + verbose test "$(commit_message HEAD~2)" = "files_subtree/master4" &&
81 + verbose test "$(commit_message HEAD~)" = "files_subtree/master5" &&
82 verbose test "$(commit_message HEAD)" = "Empty commit"
83 '
84
85 # FAILURE: fatal: Could not parse object
112 -test_expect_failure 'Rebase -Xsubtree --onto commit 4' '
113 - reset_rebase &&
114 - git checkout -b rebase-onto-4 to-rebase &&
115 - git rebase -Xsubtree=files_subtree --onto files-master master &&
116 - verbose test "$(commit_message HEAD~2)" = "files_subtree/master4"
117 -'
118 -
119 -# FAILURE: fatal: Could not parse object
120 -test_expect_failure 'Rebase -Xsubtree --onto commit 5' '
121 - reset_rebase &&
122 - git checkout -b rebase-onto-5 to-rebase &&
123 - git rebase -Xsubtree=files_subtree --onto files-master master &&
124 - verbose test "$(commit_message HEAD~)" = "files_subtree/master5"
125 -'
126 -# FAILURE: fatal: Could not parse object
127 -test_expect_failure 'Rebase -Xsubtree --onto empty commit' '
86 +test_expect_failure 'Rebase -Xsubtree --onto commit' '
87 reset_rebase &&
129 - git checkout -b rebase-onto-empty to-rebase &&
88 + git checkout -b rebase-onto to-rebase &&
89 git rebase -Xsubtree=files_subtree --onto files-master master &&
90 + verbose test "$(commit_message HEAD~2)" = "files_subtree/master4" &&
91 + verbose test "$(commit_message HEAD~)" = "files_subtree/master5" &&
92 verbose test "$(commit_message HEAD)" = "Empty commit"
93 '
94