From 3ef8f4fdc3547fc358111b6a43f08422211081cb Mon Sep 17 00:00:00 2001
From: John Vandenberg <jayvdb@gmail.com>
Date: Sun, 21 Jan 2024 16:16:31 +0800
Subject: [PATCH] Add ulid support

---
 README.md                  |  1 +
 fake/Cargo.toml            |  1 +
 fake/src/impls/mod.rs      |  2 ++
 fake/src/impls/ulid/mod.rs | 13 +++++++++++++
 fake/src/lib.rs            |  4 ++++
 fake/tests/determinism.rs  |  8 ++++++++
 6 files changed, 29 insertions(+)
 create mode 100644 fake/src/impls/ulid/mod.rs

diff --git a/README.md b/README.md
index fe8da67..39ef0e9 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,7 @@ Available features:
   - `chrono`
   - `chrono-tz`
   - `http`
+  - `ulid`
   - `uuid`
   - `bigdecimal` (via `bigdecimal-rs`)
   - `rust_decimal`
diff --git a/fake/Cargo.toml b/fake/Cargo.toml
index 2c04205..eba41c8 100644
--- a/fake/Cargo.toml
+++ b/fake/Cargo.toml
@@ -27,6 +27,7 @@ geo-types = { version = "0.7", default-features = false, optional = true }
 http = { version = "1", optional = true }
 semver = { version = "1", optional = true }
 serde_json = { version = "1.0", optional = true }
+ulid = { version = "1.1", optional = true }
 uuid = { version = "1.5", features = ["v1", "v3", "v4", "v5"], optional = true }
 time = { version = "0.3", features = ["formatting"], optional = true }
 num-traits = { version = "0.2", optional = true }
diff --git a/fake/src/impls/mod.rs b/fake/src/impls/mod.rs
index 77e2ea0..fb4a5bc 100644
--- a/fake/src/impls/mod.rs
+++ b/fake/src/impls/mod.rs
@@ -23,6 +23,8 @@ pub mod serde_json;
 pub mod std;
 #[cfg(feature = "time")]
 pub mod time;
+#[cfg(feature = "ulid")]
+pub mod ulid;
 #[cfg(feature = "uuid")]
 pub mod uuid;
 #[cfg(feature = "zerocopy")]
diff --git a/fake/src/impls/ulid/mod.rs b/fake/src/impls/ulid/mod.rs
new file mode 100644
index 0000000..a5d2e75
--- /dev/null
+++ b/fake/src/impls/ulid/mod.rs
@@ -0,0 +1,13 @@
+//! ulid
+
+use ulid::Ulid;
+
+use crate::{Dummy, Faker};
+
+impl Dummy<Faker> for Ulid {
+    fn dummy_with_rng<R: rand::Rng + ?Sized>(_: &Faker, rng: &mut R) -> Self {
+        let time_part: u64 = rng.gen_range(0..(1 << Ulid::TIME_BITS));
+        let rand_part: u128 = rng.gen_range(0..(1 << Ulid::RAND_BITS));
+        Ulid::from_parts(time_part, rand_part)
+    }
+}
diff --git a/fake/src/lib.rs b/fake/src/lib.rs
index b3afd10..33a05ea 100644
--- a/fake/src/lib.rs
+++ b/fake/src/lib.rs
@@ -5,6 +5,7 @@
 //! - `derive` provides `#[derive(Dummy)]`
 //! - `chrono` [chrono](https://docs.rs/chrono) integration
 //! - `http` [http](https://docs.rs/http) integration
+//! - `ulid` [ulid](https://docs.rs/ulid) integration
 //! - `uuid` [uuid](https://docs.rs/uuid) integration
 //!
 //! # Usage
@@ -251,6 +252,9 @@ pub use impls::std::string::StringFaker;
 #[cfg(feature = "geo")]
 pub use impls::geo;
 
+#[cfg(feature = "ulid")]
+pub use impls::ulid;
+
 #[cfg(feature = "uuid")]
 pub use impls::uuid;
 
diff --git a/fake/tests/determinism.rs b/fake/tests/determinism.rs
index 14be5f1..9e7d78f 100644
--- a/fake/tests/determinism.rs
+++ b/fake/tests/determinism.rs
@@ -216,6 +216,14 @@ check_determinism! { l10d SafeEmail; String, fake_safeemail_en, fake_safeemail_f
 check_determinism! { l10d UserAgent; String, fake_useragent_en, fake_useragent_fr, fake_useragent_cn, fake_useragent_tw, fake_useragent_jp, fake_useragent_br }
 check_determinism! { l10d Username; String, fake_username_en, fake_username_fr, fake_username_cn, fake_username_tw, fake_username_jp, fake_username_br }
 
+// it's sufficient to check one language, because it doesn't change anything
+#[cfg(feature = "ulid")]
+mod ulid {
+    use fake::{Fake, Faker};
+    use rand::SeedableRng as _;
+    check_determinism! { one fake_ulid, ulid::Ulid, Faker }
+}
+
 // it's sufficient to check one language, because it doesn't change anything
 #[cfg(feature = "uuid")]
 mod uuid {