feat(go): update github.com/brianvoe/gofakeit/v7 (v7.3.0 → v7.12.1)

[lrstanley-x]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/brianvoe/gofakeit/v7	v7.3.0 -> v7.12.1

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Release Notes

brianvoe/gofakeit (github.com/brianvoe/gofakeit/v7)

v7.12.1

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v7.12.0

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v7.11.0

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v7.10.0

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v7.9.0: ID Generator

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New: ID() — Fast, Human-Readable Random Identifier

(GoFakeIt v7.9.0)

gofakeit.ID() is a new high-performance identifier generator designed for speed, readability, and practically zero collision probability.

Unlike UUID v4 or XID, this generator is intentionally random-first, not structure-based.
Perfect for mock APIs, test data, fixtures, seed data, and temporary identifiers.

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Highlights

• Human readable alphabet, no confusing characters
  → 23456789abcdefghjkmnpqrstuvwxyz (no 1, l, i or 0, o to alleviate confusion)
• Fast
• Memory Allocation
• Generates from your rand source
• Shorter than UUID, faster than XID, and requires no coordination

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Example

id := gofakeit.ID()
fmt.Println(id)
// → "3t9qf4c92npxhw7bg6y0"

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Performance Benchmarks

Measured on Go 1.25

Generator / Function	Benchmark Name	ops/sec	ns/op	B/op	allocs/op
gofakeit.ID()	BenchmarkID-10	31,383,146	37.8 ns	24	1
gofakeit.UUIDv4()	BenchmarkUUIDv4-10	22,131,577	53.8 ns	48	1
github.com/rs/xid	BenchmarkXID-10	16,190,817	74.2 ns	0	0
github.com/google/uuid (v4)	BenchmarkGoogleUUIDv4-10	3,098,770	386.1 ns	64	2

Takeaway: gofakeit.ID() is ~2× faster than XID and ~10× faster than UUID v4, while being shorter and human-readable.

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Collision Probability (Randomness Math)

• ID length: 20 characters
• Alphabet: 32 slots with one duplicated character (intentional) → avoids retries, maximizes speed
• Effective entropy: ≈ 98.25 bits

Even under very large bursts, duplication is astronomically unlikely

Collision probability when generating n IDs within 1 second (birthday bound)

n (IDs in 1s)	gofakeit.ID() collision probability
100,000	0.00000000000000000001326
1,000,000	0.000000000000000001326017
10,000,000	0.000000000000000132601736
100,000,000	0.000000000000013260173678
1,000,000,000	0.000000000001326017367838

For comparison (same n):

• UUID v4 (122 bits): much lower probabilities (but significantly slower and longer)
• XID: structural uniqueness (time + machine + pid + counter). Treat collisions as operationally zero when configured normally.

Need structural, sortable IDs? Use XID or Snowflake.
Want random, readable, fast? Use gofakeit.ID().

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RNG Behavior

Mode	Behavior
Default (gofakeit.ID())	PCG for speed, seeded via crypto/rand → fast + unpredictable
Full crypto (NewFaker(source.NewCrypto()))	crypto/rand for every ID → maximum randomness (slower)
Deterministic (New(seed))	PCG with fixed seed → reproducible ID sequences (useful for tests/fixtures)

We seed PCG with a cryptographic seed when seed == 0. This prevents accidental identical streams across processes/containers.

---

Example Usage

package main

import (
	"fmt"

	"github.com/brianvoe/gofakeit/v7"
	"github.com/brianvoe/gofakeit/v7/source"
)

func main() {
	// Fast ID — PCG, automatically crypto-seeded
	fmt.Println("fast ID:", gofakeit.ID())

	// Cryptographically secure per-ID RNG
	crypto := source.NewCrypto()
	faker := gofakeit.NewFaker(crypto, true)
	fmt.Println("crypto ID:", faker.ID())
}

v7.8.2

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v7.8.1

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v7.8.0

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v7.7.3

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v7.7.2

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v7.7.1

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v7.7.0

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v7.6.0

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v7.5.1

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v7.5.0

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v7.4.0

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---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

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PR generated using automation.

[lrstanley-x]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: _examples/go.sum

Command failed: go get -t ./...
go: downloading github.com/brianvoe/gofakeit/v7 v7.12.1
go: github.com/lrstanley/entrest/_examples/simple imports
	github.com/lrstanley/entrest/_examples/simple/internal/database/ent: cannot find module providing package github.com/lrstanley/entrest/_examples/simple/internal/database/ent
go: github.com/lrstanley/entrest/_examples/simple imports
	github.com/lrstanley/entrest/_examples/simple/internal/database/ent/rest: cannot find module providing package github.com/lrstanley/entrest/_examples/simple/internal/database/ent/rest
go: github.com/lrstanley/entrest/_examples/simple imports
	github.com/lrstanley/entrest/_examples/simple/internal/database/ent/runtime: cannot find module providing package github.com/lrstanley/entrest/_examples/simple/internal/database/ent/runtime

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.23%. Comparing base (07961d7) to head (ef78d78).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #109      +/-   ##
==========================================
- Coverage   69.37%   69.23%   -0.14%     
==========================================
  Files          10       10              
  Lines        2436     2022     -414     
==========================================
- Hits         1690     1400     -290     
+ Misses        632      508     -124     
  Partials      114      114              

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