From 7793779ce197fa0c917d0ef312bfa9bcfcb64790 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Fri, 11 Nov 2022 22:52:30 +0100
Subject: test: add unit test for create_caster_fn_ident

---
 test_util_macros/src/lib.rs | 47 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 test_util_macros/src/lib.rs

(limited to 'test_util_macros/src/lib.rs')

diff --git a/test_util_macros/src/lib.rs b/test_util_macros/src/lib.rs
new file mode 100644
index 0000000..aa87ecf
--- /dev/null
+++ b/test_util_macros/src/lib.rs
@@ -0,0 +1,47 @@
+#![deny(clippy::all)]
+#![deny(clippy::pedantic)]
+#![deny(missing_docs)]
+
+//! Internal macros used by tests.
+
+use std::iter::repeat;
+
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::parse::Parse;
+use syn::{parse_macro_input, LitChar, LitInt, Token};
+
+/// Repeats a character N number of times.
+#[proc_macro]
+pub fn repeat_char(input: TokenStream) -> TokenStream
+{
+    let RepeatMacroArgs { character, count } =
+        parse_macro_input!(input as RepeatMacroArgs);
+
+    let repeated = repeat(character.value()).take(count).collect::<String>();
+
+    quote! {
+        #repeated
+    }
+    .into()
+}
+
+struct RepeatMacroArgs
+{
+    character: LitChar,
+    count: usize,
+}
+
+impl Parse for RepeatMacroArgs
+{
+    fn parse(input: syn::parse::ParseStream) -> syn::Result<Self>
+    {
+        let character = input.parse::<LitChar>()?;
+
+        input.parse::<Token![,]>()?;
+
+        let count = input.parse::<LitInt>()?.base10_parse::<usize>()?;
+
+        Ok(Self { character, count })
+    }
+}
-- 
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