chore: checkpoint before Python removal

vendor/schemars/tests/struct.rs

@@ -0,0 +1,45 @@
+mod util;
+use schemars::JsonSchema;
+use util::*;
+
+// Ensure that schemars_derive uses the full path to std::string::String
+pub struct String;
+
+#[allow(dead_code)]
+#[derive(JsonSchema)]
+struct Struct {
+    foo: i32,
+    bar: bool,
+    baz: Option<&'static str>,
+}
+
+#[test]
+fn struct_normal() -> TestResult {
+    test_default_generated_schema::<Struct>("struct-normal")
+}
+
+#[allow(dead_code)]
+#[derive(JsonSchema)]
+pub struct Tuple(i32, bool, Option<&'static str>);
+
+#[test]
+fn struct_tuple() -> TestResult {
+    test_default_generated_schema::<Tuple>("struct-tuple")
+}
+
+#[allow(dead_code)]
+#[derive(JsonSchema)]
+pub struct Newtype(i32);
+
+#[test]
+fn struct_newtype() -> TestResult {
+    test_default_generated_schema::<Newtype>("struct-newtype")
+}
+
+#[derive(JsonSchema)]
+pub struct Unit;
+
+#[test]
+fn struct_unit() -> TestResult {
+    test_default_generated_schema::<Unit>("struct-unit")
+}