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test: feature_init, only init what's needed per perturbation/deletion round
Avoids initializing and syncing components not under test. This not only speeds up execution a bit but also helps isolate and debug issues more easily, as logs aren't flooded with unrelated details.
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‎test/functional/feature_init.py‎

Lines changed: 73 additions & 22 deletions
Original file line numberDiff line numberDiff line change
@@ -47,9 +47,9 @@ def sigterm_node():
4747
node.process.terminate()
4848
node.process.wait()
4949

50-
def start_expecting_error(err_fragment):
50+
def start_expecting_error(err_fragment, args):
5151
node.assert_start_raises_init_error(
52-
extra_args=['-txindex=1', '-blockfilterindex=1', '-coinstatsindex=1', '-checkblocks=200', '-checklevel=4'],
52+
extra_args=args,
5353
expected_msg=err_fragment,
5454
match=ErrorMatch.PARTIAL_REGEX,
5555
)
@@ -102,37 +102,84 @@ def check_clean_start():
102102

103103
self.log.info("Test startup errors after removing certain essential files")
104104

105-
files_to_delete = {
106-
'blocks/index/*.ldb': 'Error opening block database.',
107-
'chainstate/*.ldb': 'Error opening coins database.',
108-
'blocks/blk*.dat': 'Error loading block database.',
109-
'indexes/txindex/MANIFEST*': 'LevelDB error: Corruption: CURRENT points to a non-existent file',
105+
deletion_rounds = [
106+
{
107+
'filepath_glob': 'blocks/index/*.ldb',
108+
'error_message': 'Error opening block database.',
109+
'startup_args': [],
110+
},
111+
{
112+
'filepath_glob': 'chainstate/*.ldb',
113+
'error_message': 'Error opening coins database.',
114+
'startup_args': ['-checklevel=4'],
115+
},
116+
{
117+
'filepath_glob': 'blocks/blk*.dat',
118+
'error_message': 'Error loading block database.',
119+
'startup_args': ['-checkblocks=200', '-checklevel=4'],
120+
},
121+
{
122+
'filepath_glob': 'indexes/txindex/MANIFEST*',
123+
'error_message': 'LevelDB error: Corruption: CURRENT points to a non-existent file',
124+
'startup_args': ['-txindex=1'],
125+
},
110126
# Removing these files does not result in a startup error:
111127
# 'indexes/blockfilter/basic/*.dat', 'indexes/blockfilter/basic/db/*.*', 'indexes/coinstats/db/*.*',
112128
# 'indexes/txindex/*.log', 'indexes/txindex/CURRENT', 'indexes/txindex/LOCK'
113-
}
114-
115-
files_to_perturb = {
116-
'blocks/index/*.ldb': 'Error loading block database.',
117-
'chainstate/*.ldb': 'Error opening coins database.',
118-
'blocks/blk*.dat': 'Corrupted block database detected.',
119-
'indexes/blockfilter/basic/db/*.*': 'LevelDB error: Corruption',
120-
'indexes/coinstats/db/*.*': 'LevelDB error: Corruption',
121-
'indexes/txindex/*.log': 'LevelDB error: Corruption',
122-
'indexes/txindex/CURRENT': 'LevelDB error: Corruption',
129+
]
130+
131+
perturbation_rounds = [
132+
{
133+
'filepath_glob': 'blocks/index/*.ldb',
134+
'error_message': 'Error loading block database.',
135+
'startup_args': [],
136+
},
137+
{
138+
'filepath_glob': 'chainstate/*.ldb',
139+
'error_message': 'Error opening coins database.',
140+
'startup_args': [],
141+
},
142+
{
143+
'filepath_glob': 'blocks/blk*.dat',
144+
'error_message': 'Corrupted block database detected.',
145+
'startup_args': ['-checkblocks=200', '-checklevel=4'],
146+
},
147+
{
148+
'filepath_glob': 'indexes/blockfilter/basic/db/*.*',
149+
'error_message': 'LevelDB error: Corruption',
150+
'startup_args': ['-blockfilterindex=1'],
151+
},
152+
{
153+
'filepath_glob': 'indexes/coinstats/db/*.*',
154+
'error_message': 'LevelDB error: Corruption',
155+
'startup_args': ['-coinstatsindex=1'],
156+
},
157+
{
158+
'filepath_glob': 'indexes/txindex/*.log',
159+
'error_message': 'LevelDB error: Corruption',
160+
'startup_args': ['-txindex=1'],
161+
},
162+
{
163+
'filepath_glob': 'indexes/txindex/CURRENT',
164+
'error_message': 'LevelDB error: Corruption',
165+
'startup_args': ['-txindex=1'],
166+
},
123167
# Perturbing these files does not result in a startup error:
124168
# 'indexes/blockfilter/basic/*.dat', 'indexes/txindex/MANIFEST*', 'indexes/txindex/LOCK'
125-
}
169+
]
126170

127-
for file_patt, err_fragment in files_to_delete.items():
171+
for round_info in deletion_rounds:
172+
file_patt = round_info['filepath_glob']
173+
err_fragment = round_info['error_message']
174+
startup_args = round_info['startup_args']
128175
target_files = list(node.chain_path.glob(file_patt))
129176

130177
for target_file in target_files:
131178
self.log.info(f"Deleting file to ensure failure {target_file}")
132179
bak_path = str(target_file) + ".bak"
133180
target_file.rename(bak_path)
134181

135-
start_expecting_error(err_fragment)
182+
start_expecting_error(err_fragment, startup_args)
136183

137184
for target_file in target_files:
138185
bak_path = str(target_file) + ".bak"
@@ -144,7 +191,11 @@ def check_clean_start():
144191

145192
self.log.info("Test startup errors after perturbing certain essential files")
146193
dirs = ["blocks", "chainstate", "indexes"]
147-
for file_patt, err_fragment in files_to_perturb.items():
194+
for round_info in perturbation_rounds:
195+
file_patt = round_info['filepath_glob']
196+
err_fragment = round_info['error_message']
197+
startup_args = round_info['startup_args']
198+
148199
for dir in dirs:
149200
shutil.copytree(node.chain_path / dir, node.chain_path / f"{dir}_bak")
150201
target_files = list(node.chain_path.glob(file_patt))
@@ -158,7 +209,7 @@ def check_clean_start():
158209
tf.seek(150)
159210
tf.write(b"1" * 200)
160211

161-
start_expecting_error(err_fragment)
212+
start_expecting_error(err_fragment, startup_args)
162213

163214
for dir in dirs:
164215
shutil.rmtree(node.chain_path / dir)

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