Add more Serde test coverage

daxpedda · Aug 18, 2024 · 9387306 · 9387306
1 parent c12b22a
commit 9387306
Showing 1 changed file with 42 additions and 7 deletions.
diff --git a/tests/serde.rs b/tests/serde.rs
@@ -54,7 +54,7 @@ test! {
 				Token::Seq { len: Some(2) },
 				Token::U64(0),
 				Token::U32(0),
-				Token::SeqEnd
+				Token::SeqEnd,
 			],
 		);
 	}
@@ -69,7 +69,7 @@ test! {
 				Token::U64(0),
 				Token::Str("nanos_since_epoch"),
 				Token::U32(0),
-				Token::MapEnd
+				Token::MapEnd,
 			],
 		);
 
@@ -81,7 +81,7 @@ test! {
 				Token::U64(0),
 				Token::Bytes(b"nanos_since_epoch"),
 				Token::U32(0),
-				Token::MapEnd
+				Token::MapEnd,
 			],
 		);
 	}
@@ -91,26 +91,43 @@ test! {
 		serde_test::assert_de_tokens_error::<SystemTime>(
 			&[
 				Token::Seq { len: Some(0) },
-				Token::SeqEnd
+				Token::SeqEnd,
 			],
 			"invalid length 0, expected struct SystemTime",
 		);
 
+		serde_test::assert_de_tokens_error::<SystemTime>(
+			&[
+				Token::Seq { len: Some(1) },
+				Token::Unit,
+			],
+			"invalid type: unit value, expected u64",
+		);
+
 		serde_test::assert_de_tokens_error::<SystemTime>(
 			&[
 				Token::Seq { len: Some(1) },
 				Token::U64(0),
-				Token::SeqEnd
+				Token::SeqEnd,
 			],
 			"invalid length 1, expected struct SystemTime",
 		);
 
+		serde_test::assert_de_tokens_error::<SystemTime>(
+			&[
+				Token::Seq { len: Some(2) },
+				Token::U64(0),
+				Token::Unit,
+			],
+			"invalid type: unit value, expected u32",
+		);
+
 		serde_test::assert_de_tokens_error::<SystemTime>(
 			&[
 				Token::Seq { len: Some(2) },
 				Token::U64(u64::MAX),
 				Token::U32(u32::MAX),
-				Token::SeqEnd
+				Token::SeqEnd,
 			],
 			"overflow deserializing SystemTime epoch offset",
 		);
@@ -209,9 +226,27 @@ test! {
 				Token::U64(u64::MAX),
 				Token::Str("nanos_since_epoch"),
 				Token::U32(u32::MAX),
-				Token::MapEnd
+				Token::MapEnd,
 			],
 			"overflow deserializing SystemTime epoch offset",
 		);
 	}
+
+	/// Serializing failures.
+	async fn failure_serialize() {
+		let mut serialized = [0; 0];
+		let error = serde_json::to_writer(serialized.as_mut(), &SystemTime::UNIX_EPOCH).unwrap_err();
+
+		assert_eq!(error.to_string(), "failed to write whole buffer");
+
+		let mut serialized = [0; 1];
+		let error = serde_json::to_writer(serialized.as_mut(), &SystemTime::UNIX_EPOCH).unwrap_err();
+
+		assert_eq!(error.to_string(), "failed to write whole buffer");
+
+		let mut serialized = [0; 21];
+		let error = serde_json::to_writer(serialized.as_mut(), &SystemTime::UNIX_EPOCH).unwrap_err();
+
+		assert_eq!(error.to_string(), "failed to write whole buffer");
+	}
 }