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View Code? Open in Web Editor NEWleveldown compatible binding to LMDB
leveldown compatible binding to LMDB
The iterator does not go in the correct direction with both an upper and lower bound.
Line 256 in 5d34800
Example test output:
# test iterator with gte=30 and lte=70 and reverse=true
ok 275 undefined
not ok 276 correct number of entries
---
operator: equal
expected: 41
actual: 1
stack: |-
Error: correct number of entries
at Test.assert [as _assert] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:212:54)
at Test.bound [as _assert] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:64:32)
at Test.equal.Test.equals.Test.isEqual.Test.is.Test.strictEqual.Test.strictEquals (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:347:10)
at Test.bound [as is] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:64:32)
at /Users/chris/lmdb-leveldown/node_modules/abstract-leveldown/abstract/iterator-range-test.js:28:11
at /Users/chris/lmdb-leveldown/node_modules/abstract-leveldown/testCommon.js:56:11
at /Users/chris/lmdb-leveldown/src/index.js:281:48
...
not ok 277 should be equivalent
---
operator: deepEqual
expected: |-
[ { key: '70', value: '0.8025281173721805' }, { key: '69', value: '0.5664507517525017' }, { key: '68', value: '0.10233997012150153' }, { key: '67', value: '0.3480505763258064' }, { key: '66', value: '0.9132791307734551' }, { key: '65', value: '0.030064742250546006' }, { key: '64', value: '0.49373167690324027' }, { key: '63', value: '0.12620420026129908' }, { key: '62', value: '0.11216823705999612' }, { key: '61', value: '0.42510185325347893' }, { key: '60', value: '0.9624005486051628' }, { key: '59', value: '0.5568737819443985' }, { key: '58', value: '0.5319237025637298' }, { key: '57', value: '0.8552353376818715' }, { key: '56', value: '0.6401857734726797' }, { key: '55', value: '0.7778772324231' }, { key: '54', value: '0.6563670401821771' }, { key: '53', value: '0.4460314320292509' }, { key: '52', value: '0.07948485238433345' }, { key: '51', value: '0.36530754007971344' }, { key: '50', value: '0.9926293454942214' }, { key: '49', value: '0.870681776044933' }, { key: '48', value: '0.40817687400102187' }, { key: '47', value: '0.3876517750820454' }, { key: '46', value: '0.0017991566460582309' }, { key: '45', value: '0.8344979460196531' }, { key: '44', value: '0.2520268489645723' }, { key: '43', value: '0.8325248425789715' }, { key: '42', value: '0.001318505225654354' }, { key: '41', value: '0.6002752426781577' }, { key: '40', value: '0.9062894500219179' }, { key: '39', value: '0.5091017741121526' }, { key: '38', value: '0.556665716180794' }, { key: '37', value: '0.6994867761581447' }, { key: '36', value: '0.6354089503475413' }, { key: '35', value: '0.3067917310062098' }, { key: '34', value: '0.9483960001944651' }, { key: '33', value: '0.07456138004585422' }, { key: '32', value: '0.5269703145924365' }, { key: '31', value: '0.11930046918457604' }, { key: '30', value: '0.95193243077822' } ]
actual: |-
[ { key: '30', value: '0.95193243077822' } ]
stack: |-
Error: should be equivalent
at Test.assert [as _assert] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:212:54)
at Test.bound [as _assert] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:64:32)
at Test.deepEqual.Test.deepEquals.Test.isEquivalent.Test.same (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:380:10)
at Test.bound [as same] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:64:32)
at /Users/chris/lmdb-leveldown/node_modules/abstract-leveldown/abstract/iterator-range-test.js:29:11
at /Users/chris/lmdb-leveldown/node_modules/abstract-leveldown/testCommon.js:56:11
at /Users/chris/lmdb-leveldown/src/index.js:281:48
...
The iterator currently starts with a key when getting the initial value to iterate through. This does not work if the range is defined by values that are not keys.
Lines 144 to 168 in 5d34800
Example test output:
# test iterator with gte=49.5 (midway)
ok 200 undefined
not ok 201 correct number of entries
---
operator: equal
expected: 50
actual: 0
...
not ok 202 should be equivalent
---
operator: deepEqual
expected: |-
[ { key: '50', value: '0.9926293454942214' }, { key: '51', value: '0.36530754007971344' }, { key: '52', value: '0.07948485238433345' }, { key: '53', value: '0.4460314320292509' }, { key: '54', value: '0.6563670401821771' }, { key: '55', value: '0.7778772324231' }, { key: '56', value: '0.6401857734726797' }, { key: '57', value: '0.8552353376818715' }, { key: '58', value: '0.5319237025637298' }, { key: '59', value: '0.5568737819443985' }, { key: '60', value: '0.9624005486051628' }, { key: '61', value: '0.42510185325347893' }, { key: '62', value: '0.11216823705999612' }, { key: '63', value: '0.12620420026129908' }, { key: '64', value: '0.49373167690324027' }, { key: '65', value: '0.030064742250546006' }, { key: '66', value: '0.9132791307734551' }, { key: '67', value: '0.3480505763258064' }, { key: '68', value: '0.10233997012150153' }, { key: '69', value: '0.5664507517525017' }, { key: '70', value: '0.8025281173721805' }, { key: '71', value: '0.5920517761246549' }, { key: '72', value: '0.7022464461638869' }, { key: '73', value: '0.10957992173264319' }, { key: '74', value: '0.7761877436457496' }, { key: '75', value: '0.5781361569669583' }, { key: '76', value: '0.3111166336007185' }, { key: '77', value: '0.4878780537177789' }, { key: '78', value: '0.12655914496335186' }, { key: '79', value: '0.38618150055929523' }, { key: '80', value: '0.31609012678322257' }, { key: '81', value: '0.6589613745332377' }, { key: '82', value: '0.6048494277682703' }, { key: '83', value: '0.2066701342922257' }, { key: '84', value: '0.0018538658409072983' }, { key: '85', value: '0.8492683128917726' }, { key: '86', value: '0.0848514102379645' }, { key: '87', value: '0.9711296854693521' }, { key: '88', value: '0.49853902528205385' }, { key: '89', value: '0.9740776483919469' }, { key: '90', value: '0.6530275273713964' }, { key: '91', value: '0.25511761710292546' }, { key: '92', value: '0.28199455595791534' }, { key: '93', value: '0.57805842900936' }, { key: '94', value: '0.20249379034314852' }, { key: '95', value: '0.3205214395313847' }, { key: '96', value: '0.15968226699990007' }, { key: '97', value: '0.6626543905212701' }, { key: '98', value: '0.08386572138126924' }, { key: '99', value: '0.8048711309013743' } ]
actual: |-
[]
stack: |-
Error: should be equivalent
at Test.assert [as _assert] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:212:54)
at Test.bound [as _assert] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:64:32)
at Test.deepEqual.Test.deepEquals.Test.isEquivalent.Test.same (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:380:10)
at Test.bound [as same] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:64:32)
at /Users/chris/lmdb-leveldown/node_modules/abstract-leveldown/abstract/iterator-range-test.js:29:11
at /Users/chris/lmdb-leveldown/node_modules/abstract-leveldown/testCommon.js:56:11
at /Users/chris/lmdb-leveldown/src/index.js:281:48
...
This may be resolved with #2. It looks like abstract-leveldown is expecting the keys to be sorted alphabetically, and I'm not sure what the underlying node-lmdb is sorting by.
Example test output:
# test iterator with gte=49999 (midway)
ok 206 undefined
not ok 207 correct number of entries
---
operator: equal
expected: 50
actual: 0
...
not ok 208 should be equivalent
---
operator: deepEqual
expected: |-
[ { key: '50', value: '0.9926293454942214' }, { key: '51', value: '0.36530754007971344' }, { key: '52', value: '0.07948485238433345' }, { key: '53', value: '0.4460314320292509' }, { key: '54', value: '0.6563670401821771' }, { key: '55', value: '0.7778772324231' }, { key: '56', value: '0.6401857734726797' }, { key: '57', value: '0.8552353376818715' }, { key: '58', value: '0.5319237025637298' }, { key: '59', value: '0.5568737819443985' }, { key: '60', value: '0.9624005486051628' }, { key: '61', value: '0.42510185325347893' }, { key: '62', value: '0.11216823705999612' }, { key: '63', value: '0.12620420026129908' }, { key: '64', value: '0.49373167690324027' }, { key: '65', value: '0.030064742250546006' }, { key: '66', value: '0.9132791307734551' }, { key: '67', value: '0.3480505763258064' }, { key: '68', value: '0.10233997012150153' }, { key: '69', value: '0.5664507517525017' }, { key: '70', value: '0.8025281173721805' }, { key: '71', value: '0.5920517761246549' }, { key: '72', value: '0.7022464461638869' }, { key: '73', value: '0.10957992173264319' }, { key: '74', value: '0.7761877436457496' }, { key: '75', value: '0.5781361569669583' }, { key: '76', value: '0.3111166336007185' }, { key: '77', value: '0.4878780537177789' }, { key: '78', value: '0.12655914496335186' }, { key: '79', value: '0.38618150055929523' }, { key: '80', value: '0.31609012678322257' }, { key: '81', value: '0.6589613745332377' }, { key: '82', value: '0.6048494277682703' }, { key: '83', value: '0.2066701342922257' }, { key: '84', value: '0.0018538658409072983' }, { key: '85', value: '0.8492683128917726' }, { key: '86', value: '0.0848514102379645' }, { key: '87', value: '0.9711296854693521' }, { key: '88', value: '0.49853902528205385' }, { key: '89', value: '0.9740776483919469' }, { key: '90', value: '0.6530275273713964' }, { key: '91', value: '0.25511761710292546' }, { key: '92', value: '0.28199455595791534' }, { key: '93', value: '0.57805842900936' }, { key: '94', value: '0.20249379034314852' }, { key: '95', value: '0.3205214395313847' }, { key: '96', value: '0.15968226699990007' }, { key: '97', value: '0.6626543905212701' }, { key: '98', value: '0.08386572138126924' }, { key: '99', value: '0.8048711309013743' } ]
actual: |-
[]
stack: |-
Error: should be equivalent
at Test.assert [as _assert] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:212:54)
at Test.bound [as _assert] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:64:32)
at Test.deepEqual.Test.deepEquals.Test.isEquivalent.Test.same (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:380:10)
at Test.bound [as same] (/Users/chris/lmdb-leveldown/node_modules/tape/lib/test.js:64:32)
at /Users/chris/lmdb-leveldown/node_modules/abstract-leveldown/abstract/iterator-range-test.js:29:11
at /Users/chris/lmdb-leveldown/node_modules/abstract-leveldown/testCommon.js:56:11
at /Users/chris/lmdb-leveldown/src/index.js:281:48
...
Due to the workaround method of getting key ranges, iterators throw the following error: Error: You have already opened a write transaction in the current process, can't open a second one.
This issue can be fixed by Venemo/node-lmdb#116
The issue can be experienced on this branch due to the removal of pessimistic error catching.
Hello,
This is pretty self explanatory I hope:
> require('lmdb-leveldown')
Thrown:
ReferenceError: regeneratorRuntime is not defined
at /home/lewis/dbtest/node_modules/lmdb-leveldown/build/index.js:450:47
at /home/lewis/dbtest/node_modules/lmdb-leveldown/build/index.js:513:4
Node version v10.16.0. Downloads fine, I can require node-lmdb no problem.
Currently 26 tests from abstract-leveldown fail. These tests need to be categorized into issues and fixed before publishing. This is the master issue that tracks these failing tests together.
The failing tests essentially come down to these issues:
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