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-rw-r--r--third_party/rust/serde_json/tests/lexical/num.rs76
1 files changed, 76 insertions, 0 deletions
diff --git a/third_party/rust/serde_json/tests/lexical/num.rs b/third_party/rust/serde_json/tests/lexical/num.rs
new file mode 100644
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+++ b/third_party/rust/serde_json/tests/lexical/num.rs
@@ -0,0 +1,76 @@
+// Adapted from https://github.com/Alexhuszagh/rust-lexical.
+
+use crate::lexical::num::{AsPrimitive, Float, Integer, Number};
+
+fn check_as_primitive<T: AsPrimitive>(t: T) {
+ let _: u32 = t.as_u32();
+ let _: u64 = t.as_u64();
+ let _: u128 = t.as_u128();
+ let _: usize = t.as_usize();
+ let _: f32 = t.as_f32();
+ let _: f64 = t.as_f64();
+}
+
+#[test]
+fn as_primitive_test() {
+ check_as_primitive(1u32);
+ check_as_primitive(1u64);
+ check_as_primitive(1u128);
+ check_as_primitive(1usize);
+ check_as_primitive(1f32);
+ check_as_primitive(1f64);
+}
+
+fn check_number<T: Number>(x: T, y: T) {
+ // Copy, partialeq, partialord
+ let _ = x;
+ assert!(x < y);
+ assert!(x != y);
+
+ // Operations
+ let _ = y + x;
+
+ // Conversions already tested.
+}
+
+#[test]
+fn number_test() {
+ check_number(1u32, 5);
+ check_number(1u64, 5);
+ check_number(1u128, 5);
+ check_number(1usize, 5);
+ check_number(1f32, 5.0);
+ check_number(1f64, 5.0);
+}
+
+fn check_integer<T: Integer>(x: T) {
+ // Bitwise operations
+ let _ = x & T::ZERO;
+}
+
+#[test]
+fn integer_test() {
+ check_integer(65u32);
+ check_integer(65u64);
+ check_integer(65u128);
+ check_integer(65usize);
+}
+
+fn check_float<T: Float>(x: T) {
+ // Check functions
+ let _ = x.pow10(5);
+ let _ = x.to_bits();
+ assert!(T::from_bits(x.to_bits()) == x);
+
+ // Check properties
+ let _ = x.to_bits() & T::SIGN_MASK;
+ let _ = x.to_bits() & T::EXPONENT_MASK;
+ let _ = x.to_bits() & T::HIDDEN_BIT_MASK;
+ let _ = x.to_bits() & T::MANTISSA_MASK;
+}
+
+#[test]
+fn float_test() {
+ check_float(123f32);
+ check_float(123f64);
+}