Vendor dependencies for 0.3.0 release

vendor/itoa/tests/test.rs

@@ -0,0 +1,30 @@
+#![allow(non_snake_case)]
+#![allow(clippy::cast_lossless)]
+
+macro_rules! test {
+    ($($name:ident($value:expr, $expected:expr))*) => {
+        $(
+            #[test]
+            fn $name() {
+                let mut buffer = itoa::Buffer::new();
+                let s = buffer.format($value);
+                assert_eq!(s, $expected);
+            }
+        )*
+    }
+}
+
+test! {
+    test_u64_0(0u64, "0")
+    test_u64_half(u32::max_value() as u64, "4294967295")
+    test_u64_max(u64::max_value(), "18446744073709551615")
+    test_i64_min(i64::min_value(), "-9223372036854775808")
+
+    test_i16_0(0i16, "0")
+    test_i16_min(i16::min_value(), "-32768")
+
+    test_u128_0(0u128, "0")
+    test_u128_max(u128::max_value(), "340282366920938463463374607431768211455")
+    test_i128_min(i128::min_value(), "-170141183460469231731687303715884105728")
+    test_i128_max(i128::max_value(), "170141183460469231731687303715884105727")
+}