📝 Add back skills directory by dubzzz · Pull Request #7092 · dubzzz/fast-check

dubzzz · 2026-06-20T23:07:41Z

Reverts #7065

This reverts commit 786e926.

changeset-bot · 2026-06-20T23:07:45Z

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Latest commit: 893e578

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pkg-pr-new · 2026-06-20T23:08:59Z

@fast-check/examples

@fast-check/ava

npm i https://pkg.pr.new/@fast-check/ava@7092

fast-check

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@fast-check/jest

npm i https://pkg.pr.new/@fast-check/jest@7092

@fast-check/packaged

npm i https://pkg.pr.new/@fast-check/packaged@7092

@fast-check/poisoning

npm i https://pkg.pr.new/@fast-check/poisoning@7092

@fast-check/vitest

npm i https://pkg.pr.new/@fast-check/vitest@7092

@fast-check/worker

npm i https://pkg.pr.new/@fast-check/worker@7092

commit: 893e578

github-actions · 2026-06-20T23:09:37Z

⏱️ Benchmark Results

Click to expand


 RUN  v4.1.8 /home/runner/work/fast-check/fast-check


 ✓  fast-check  test/bench/arbitraries.bench.ts > generate 25667ms
     name                                                      hz      min      max     mean      p75      p99     p995     p999      rme  samples
   · boolean()                                          13,261.04   0.0661   0.5329   0.0754   0.0705   0.1249   0.1274   0.3204   ±0.63%     6631  [0.94x] ⇓
     boolean()                                          14,168.72   0.0669   0.4364   0.0706   0.0694   0.0945   0.1018   0.2903   ±0.42%     7085  (baseline)
   · integer()                                          12,705.63   0.0725   0.5297   0.0787   0.0788   0.0899   0.0970   0.1202   ±0.27%     6353  [1.18x] ⇑
     integer()                                          10,753.51   0.0864   0.4880   0.0930   0.0929   0.1099   0.1190   0.1531   ±0.32%     5377  (baseline)
   · maxSafeInteger()                                    7,828.37   0.1218   0.5637   0.1277   0.1263   0.1546   0.1678   0.4730   ±0.37%     3915  [0.99x] ⇓
     maxSafeInteger()                                    7,941.20   0.1190   0.5316   0.1259   0.1260   0.1748   0.1880   0.3894   ±0.36%     3971  (baseline)
   · bigInt()                                            1,372.27   0.6917   1.0739   0.7287   0.7305   0.9559   0.9759   1.0739   ±0.37%      687  [1.01x] ⇑
     bigInt()                                            1,362.52   0.6963   1.1030   0.7339   0.7365   0.9532   0.9646   1.1030   ±0.37%      682  (baseline)
   · float()                                             6,727.07   0.1420   0.5198   0.1487   0.1474   0.1719   0.1840   0.3926   ±0.34%     3364  [1.02x] ⇑
     float()                                             6,581.66   0.1445   0.5209   0.1519   0.1510   0.1748   0.2011   0.3961   ±0.33%     3291  (baseline)
   · double()                                            2,047.03   0.4660   0.8863   0.4885   0.4905   0.6918   0.7158   0.7695   ±0.37%     1024  [0.95x] ⇓
     double()                                            2,149.54   0.4351   0.9349   0.4652   0.4632   0.8285   0.8556   0.9076   ±0.67%     1075  (baseline)
   · date()                                              3,960.06   0.2445   0.6531   0.2525   0.2574   0.2826   0.4024   0.5343   ±0.33%     1981  [0.99x] ⇓
     date()                                              4,014.08   0.2362   0.6164   0.2491   0.2518   0.3658   0.3794   0.5636   ±0.43%     2008  (baseline)
   · string()                                            1,127.35   0.8399   1.2781   0.8870   0.8893   1.1275   1.1924   1.2781   ±0.41%      564  [0.91x] ⇓
     string()                                            1,237.15   0.7519   1.1916   0.8083   0.8116   1.0453   1.0747   1.1916   ±0.43%      619  (baseline)
   · string({ maxLength: 100, size: 'max' })               181.29   5.0807   5.9442   5.5160   5.5930   5.9442   5.9442   5.9442   ±0.64%       91  [0.96x] ⇓
     string({ maxLength: 100, size: 'max' })               189.38   4.9725   5.7271   5.2804   5.3584   5.7271   5.7271   5.7271   ±0.60%       95  (baseline)
   · string({ unit: 'grapheme' })                          767.06   1.2323   1.6954   1.3037   1.3111   1.6278   1.6540   1.6954   ±0.45%      384  [0.98x] ⇓
     string({ unit: 'grapheme' })                          779.97   1.2128   1.6722   1.2821   1.2910   1.5843   1.6184   1.6722   ±0.42%      390  (baseline)
   · base64String()                                      1,103.09   0.8587   1.2815   0.9065   0.9077   1.1882   1.2207   1.2815   ±0.45%      552  [0.92x] ⇓
     base64String()                                      1,196.15   0.7903   1.2020   0.8360   0.8389   1.1296   1.1440   1.2020   ±0.43%      599  (baseline)
   · array(integer())                                    1,988.94   0.4680   0.9068   0.5028   0.5056   0.6797   0.6986   0.9068   ±0.36%      995  [0.89x] ⇓
     array(integer())                                    2,225.83   0.4180   0.7753   0.4493   0.4526   0.6302   0.6598   0.7726   ±0.38%     1113  (baseline)
   · array(integer(), { maxLength: 100, size: 'max' })     333.23   2.7956   3.3990   3.0010   3.0494   3.3894   3.3990   3.3990   ±0.48%      167  [0.91x] ⇓
     array(integer(), { maxLength: 100, size: 'max' })     367.53   2.4861   3.2502   2.7208   2.7657   3.0586   3.2502   3.2502   ±0.59%      184  (baseline)
   · uniqueArray(integer())                              1,393.82   0.6669   1.0285   0.7175   0.7220   0.9078   0.9264   1.0285   ±0.36%      697  [0.94x] ⇓
     uniqueArray(integer())                              1,486.20   0.6237   1.0237   0.6729   0.6776   0.8935   0.9565   1.0237   ±0.41%      744  (baseline)
   · set(integer())                                      1,078.26   0.8651   1.4620   0.9274   0.9217   1.3183   1.3842   1.4620   ±0.66%      540  [0.94x] ⇓
     set(integer())                                      1,144.64   0.8210   1.2890   0.8736   0.8768   1.1043   1.2453   1.2890   ±0.45%      573  (baseline)
   · tuple(integer())                                    5,919.83   0.1602   0.5031   0.1689   0.1675   0.2130   0.3029   0.3404   ±0.33%     2960  [1.03x] ⇑
     tuple(integer())                                    5,721.26   0.1651   0.5207   0.1748   0.1735   0.2138   0.3480   0.4178   ±0.40%     2861  (baseline)
   · record({ a: integer() })                            2,708.68   0.3404   0.6918   0.3692   0.3927   0.5561   0.5844   0.6857   ±0.53%     1355  [0.96x] ⇓
     record({ a: integer() })                            2,834.26   0.3382   0.6657   0.3528   0.3559   0.5271   0.5503   0.6097   ±0.37%     1418  (baseline)
   · dictionary(string(), integer())                       108.81   7.9510  12.4691   9.1901   9.8932  12.4691  12.4691  12.4691   ±2.75%       55  [0.94x] ⇓
     dictionary(string(), integer())                       115.23   7.7388  13.1253   8.6786   8.6287  13.1253  13.1253  13.1253   ±2.60%       58  (baseline)
   · map(string(), integer())                              174.16   5.4162   6.1731   5.7420   5.8092   6.1731   6.1731   6.1731   ±0.58%       88  [0.94x] ⇓
     map(string(), integer())                              185.78   5.1023   5.8170   5.3828   5.4463   5.8170   5.8170   5.8170   ±0.62%       93  (baseline)
   · constant(1)                                        30,221.06   0.0317   0.3307   0.0331   0.0326   0.0454   0.0541   0.1777   ±0.37%    15111  [1.02x] ⇑
     constant(1)                                        29,528.69   0.0321   0.5210   0.0339   0.0334   0.0456   0.0529   0.2353   ±0.50%    14765  (baseline)
   · constantFrom(1, 2)                                 13,461.70   0.0706   0.4097   0.0743   0.0726   0.1129   0.1138   0.2809   ±0.38%     6731  [1.01x] ⇑
     constantFrom(1, 2)                                 13,343.82   0.0713   0.4657   0.0749   0.0742   0.0885   0.0983   0.3133   ±0.38%     6672  (baseline)
   · oneof(integer(), integer())                         5,562.48   0.1706   0.5401   0.1798   0.1769   0.2867   0.3012   0.4574   ±0.44%     2782  [1.00x] ⇓
     oneof(integer(), integer())                         5,583.81   0.1709   0.7015   0.1791   0.1782   0.2023   0.2263   0.5179   ±0.42%     2792  (baseline)
   · oneof({ weight, arbitrary }, ...)                   5,724.37   0.1671   0.5263   0.1747   0.1736   0.1941   0.2096   0.4714   ±0.33%     2863  [1.00x] ⇑
     oneof({ weight, arbitrary }, ...)                   5,700.42   0.1664   0.5641   0.1754   0.1746   0.1966   0.2107   0.5433   ±0.35%     2851  (baseline)
   · option(integer())                                   5,939.82   0.1605   0.5226   0.1684   0.1673   0.1894   0.2243   0.4627   ±0.36%     2970  [0.99x] ⇓
     option(integer())                                   6,012.29   0.1579   0.5534   0.1663   0.1649   0.1957   0.2244   0.4460   ±0.41%     3007  (baseline)
   · subarray([1, 2, 3, 4, 5])                           2,227.57   0.4183   0.7963   0.4489   0.4518   0.6059   0.6650   0.7855   ±0.37%     1114  [0.88x] ⇓
     subarray([1, 2, 3, 4, 5])                           2,535.09   0.3687   0.7473   0.3945   0.3961   0.6010   0.6387   0.7387   ±0.46%     1268  (baseline)
   · letrec(tree)                                          577.94   1.4302   4.8791   1.7303   1.6839   4.8041   4.8338   4.8791   ±3.63%      289  [1.02x] ⇑
     letrec(tree)                                          565.52   1.5060   5.1016   1.7683   1.7278   5.0428   5.0525   5.1016   ±3.67%      283  (baseline)
   · memo(tree)                                            577.84   1.4706   5.2670   1.7306   1.6825   5.0309   5.0834   5.2670   ±3.69%      289  [1.02x] ⇑
     memo(tree)                                            565.87   1.5181   5.3248   1.7672   1.7107   5.2622   5.2738   5.3248   ±3.87%      283  (baseline)
   · anything()                                           79.7188  10.7982  20.2541  12.5441  12.7993  20.2541  20.2541  20.2541   ±3.99%       40  [1.00x] ⇑
     anything()                                           79.5987  10.8849  20.5364  12.5630  13.1112  20.5364  20.5364  20.5364   ±4.08%       40  (baseline)
   · json()                                               75.2926  11.7320  15.5573  13.2815  14.0130  15.5573  15.5573  15.5573   ±2.53%       38  [0.99x] ⇓
     json()                                               75.8803  11.4581  15.3191  13.1787  13.8010  15.3191  15.3191  15.3191   ±2.43%       38  (baseline)
   · entityGraph(employee -> manager? and team)           14.0004  63.6307   104.96  71.4265  71.5555   104.96   104.96   104.96  ±12.38%       10  [0.91x] ⇓
     entityGraph(employee -> manager? and team)           15.3815  63.4102  71.4850  65.0131  64.6637  71.4850  71.4850  71.4850   ±2.57%       10  (baseline)
   · emailAddress()                                       98.8831   9.6987  11.5862  10.1130  10.2459  11.5862  11.5862  11.5862   ±0.81%       50  [1.02x] ⇑
     emailAddress()                                       97.2682   9.8627  11.4616  10.2809  10.3977  11.4616  11.4616  11.4616   ±0.84%       49  (baseline)
   · webUrl()                                              189.30   4.9427   8.2105   5.2827   5.3530   8.2105   8.2105   8.2105   ±1.46%       95  [1.02x] ⇑
     webUrl()                                              186.40   5.1420   6.0200   5.3649   5.4223   6.0200   6.0200   6.0200   ±0.67%       94  (baseline)
   · ipV4()                                              1,548.77   0.6221   1.0891   0.6457   0.6457   0.9191   0.9518   1.0891   ±0.41%      775  [1.01x] ⇑
     ipV4()                                              1,527.99   0.6305   1.1189   0.6545   0.6537   1.0087   1.0527   1.1189   ±0.50%      764  (baseline)
   · ipV6()                                                244.29   3.7117   8.1983   4.0934   3.9971   7.1751   8.1983   8.1983   ±2.92%      123  [0.92x] ⇓
     ipV6()                                                266.97   3.5630   4.3942   3.7458   3.7489   4.3177   4.3942   4.3942   ±0.68%      134  (baseline)
   · uuid()                                                771.69   1.2081   2.2132   1.2959   1.2697   2.0884   2.1436   2.2132   ±1.37%      386  [0.96x] ⇓
     uuid()                                                804.59   1.2149   1.6918   1.2429   1.2374   1.5687   1.5817   1.6918   ±0.47%      403  (baseline)
   · stringMatching(/^abc$/)                            28,779.69   0.0326   1.3611   0.0347   0.0337   0.0627   0.0645   0.2292   ±0.69%    14390  [1.03x] ⇑
     stringMatching(/^abc$/)                            27,933.82   0.0335   0.4840   0.0358   0.0353   0.0469   0.0496   0.3031   ±0.55%    13967  (baseline)
   · stringMatching(/^[a-zA-Z0-9]+$/)                      671.56   1.4144   1.8945   1.4891   1.4956   1.8159   1.8463   1.8945   ±0.47%      336  [1.02x] ⇑
     stringMatching(/^[a-zA-Z0-9]+$/)                      656.27   1.4328   1.9943   1.5238   1.5267   1.8823   1.9874   1.9943   ±0.56%      329  (baseline)
   · mixedCase(string())                                   585.92   1.6131   2.8644   1.7067   1.6940   2.5577   2.6454   2.8644   ±0.89%      293  [0.98x] ⇓
     mixedCase(string())                                   598.24   1.5935   2.1409   1.6716   1.6746   1.9950   2.0365   2.1409   ±0.50%      300  (baseline)
   · integer().map(value+1)                              8,233.21   0.1148   0.5715   0.1215   0.1205   0.1426   0.1627   0.4200   ±0.40%     4117  [1.03x] ⇑
     integer().map(value+1)                              7,962.59   0.1166   0.6048   0.1256   0.1241   0.1727   0.1878   0.4675   ±0.48%     3982  (baseline)
   · integer().chain(integer())                          3,815.58   0.2490   0.7000   0.2621   0.2646   0.3105   0.4702   0.6913   ±0.44%     1908  [1.04x] ⇑
     integer().chain(integer())                          3,684.87   0.2426   0.6890   0.2714   0.2658   0.4203   0.5731   0.6716   ±0.79%     1843  (baseline)
   · integer().filter(true)                              9,251.36   0.1025   0.5467   0.1081   0.1076   0.1277   0.1357   0.3875   ±0.34%     4626  [0.99x] ⇓
     integer().filter(true)                              9,300.62   0.1003   0.6578   0.1075   0.1075   0.1223   0.1301   0.1467   ±0.37%     4651  (baseline)

 ✓  fast-check  test/bench/runners.bench.ts > runner 2428ms
     name                                                     hz     min     max    mean     p75     p99    p995    p999     rme  samples
   · assert on sync predicate not returning anything   13,203.75  0.0732  0.2934  0.0757  0.0740  0.1197  0.1598  0.1973  ±0.33%     6602  [1.04x] ⇑
     assert on sync predicate not returning anything   12,661.73  0.0762  0.3528  0.0790  0.0771  0.1263  0.1674  0.2294  ±0.36%     6331  (baseline)
   · assert on sync predicate returning true           13,072.36  0.0732  0.3700  0.0765  0.0743  0.1491  0.1630  0.2519  ±0.42%     6537  [1.03x] ⇑
     assert on sync predicate returning true           12,642.93  0.0761  0.3176  0.0791  0.0770  0.1530  0.1702  0.2467  ±0.38%     6322  (baseline)
   · assert on async predicate not returning anything   8,642.71  0.1073  0.3578  0.1157  0.1110  0.1983  0.2090  0.2739  ±0.50%     4322  [1.01x] ⇑
     assert on async predicate not returning anything   8,561.93  0.1105  0.2934  0.1168  0.1133  0.1951  0.2000  0.2226  ±0.40%     4281  (baseline)
   · check on sync predicate not returning anything    13,181.98  0.0726  0.3216  0.0759  0.0737  0.1473  0.1591  0.2275  ±0.39%     6591  [1.04x] ⇑
     check on sync predicate not returning anything    12,650.91  0.0761  0.3607  0.0790  0.0771  0.1548  0.1664  0.2791  ±0.41%     6326  (baseline)

 BENCH  Summary

   fast-check  constant(1) - test/bench/arbitraries.bench.ts > generate
    1.05x faster than stringMatching(/^abc$/)
    2.24x faster than constantFrom(1, 2)
    2.28x faster than boolean()
    2.38x faster than integer()
    3.27x faster than integer().filter(true)
    3.67x faster than integer().map(value+1)
    3.86x faster than maxSafeInteger()
    4.49x faster than float()
    5.09x faster than option(integer())
    5.11x faster than tuple(integer())
    5.28x faster than oneof({ weight, arbitrary }, ...)
    5.43x faster than oneof(integer(), integer())
    7.63x faster than date()
    7.92x faster than integer().chain(integer())
    11.16x faster than record({ a: integer() })
    13.57x faster than subarray([1, 2, 3, 4, 5])
    14.76x faster than double()
    15.19x faster than array(integer())
    19.51x faster than ipV4()
    21.68x faster than uniqueArray(integer())
    22.02x faster than bigInt()
    26.81x faster than string()
    27.40x faster than base64String()
    28.03x faster than set(integer())
    39.16x faster than uuid()
    39.40x faster than string({ unit: 'grapheme' })
    45.00x faster than stringMatching(/^[a-zA-Z0-9]+$/)
    51.58x faster than mixedCase(string())
    52.29x faster than letrec(tree)
    52.30x faster than memo(tree)
    90.69x faster than array(integer(), { maxLength: 100, size: 'max' })
    123.71x faster than ipV6()
    159.65x faster than webUrl()
    166.70x faster than string({ maxLength: 100, size: 'max' })
    173.53x faster than map(string(), integer())
    277.73x faster than dictionary(string(), integer())
    305.62x faster than emailAddress()
    379.10x faster than anything()
    401.38x faster than json()
    2158.59x faster than entityGraph(employee -> manager? and team)

   fast-check  assert on sync predicate not returning anything - test/bench/runners.bench.ts > runner
    1.00x faster than check on sync predicate not returning anything
    1.01x faster than assert on sync predicate returning true
    1.53x faster than assert on async predicate not returning anything

Benchmark report written to /home/runner/work/fast-check/fast-check/benchmark.json

Commit: 893e578 (merge: fefe3e0)

codecov · 2026-06-20T23:14:39Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.89%. Comparing base (c238dc6) to head (893e578).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7092   +/-   ##
=======================================
  Coverage   94.89%   94.89%           
=======================================
  Files         212      212           
  Lines        5951     5951           
  Branches     1564     1565    +1     
=======================================
  Hits         5647     5647           
  Misses        296      296           
  Partials        8        8

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Revert "🔥 Delete skills directory (#7065)"

893e578

This reverts commit 786e926.

dubzzz changed the title ~~✨ Add back skills directory~~ 📝 Add back skills directory Jun 20, 2026

dubzzz enabled auto-merge (squash) June 20, 2026 23:08

dubzzz merged commit 4663db8 into main Jun 20, 2026
54 checks passed

dubzzz deleted the revert-7065-dubzzz-patch-4 branch June 20, 2026 23:14

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📝 Add back skills directory#7092

📝 Add back skills directory#7092
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