rusty-schema-diff 0.1.1

A powerful schema evolution analyzer supporting JSON Schema, OpenAPI, Protobuf, and SQL DDL
Documentation 
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use super::*;
use crate::Schema;
use crate::analyzer::ChangeType;
use semver::Version;

fn create_schema(content: &str, version: &str) -> Schema {
    Schema::new(
        crate::SchemaFormat::OpenAPI,
        content.to_string(),
        Version::parse(version).unwrap(),
    )
}

#[test]
fn test_basic_path_changes() {
    let old_api = r#"{
        "openapi": "3.0.0",
        "info": {
            "version": "1.0.0",
            "title": "Test API"
        },
        "paths": {
            "/users": {
                "get": {
                    "responses": {
                        "200": {
                            "description": "Success"
                        }
                    }
                }
            }
        }
    }"#;

    let new_api = r#"{
        "openapi": "3.0.0",
        "info": {
            "version": "1.1.0",
            "title": "Test API"
        },
        "paths": {
            "/users": {
                "get": {
                    "responses": {
                        "200": {
                            "description": "Success"
                        }
                    }
                }
            },
            "/users/{id}": {
                "get": {
                    "responses": {
                        "200": {
                            "description": "Success"
                        }
                    }
                }
            }
        }
    }"#;

    let analyzer = OpenApiAnalyzer;
    let old_schema = create_schema(old_api, "1.0.0");
    let new_schema = create_schema(new_api, "1.1.0");

    let result = analyzer.analyze_compatibility(&old_schema, &new_schema).unwrap();
    
    assert!(result.is_compatible);
    assert!(result.changes.iter().any(|c| matches!(c.change_type, ChangeType::Addition)));
    assert_eq!(result.changes.len(), 1);
    
    let change = &result.changes[0];
    assert_eq!(change.change_type, ChangeType::Addition);
    assert_eq!(change.location, "paths//users/{id}");
    assert!(change.description.contains("added"));
}

#[test]
fn test_parameter_changes() {
    let old_api = r#"{
        "openapi": "3.0.0",
        "info": {
            "version": "1.0.0",
            "title": "Test API"
        },
        "paths": {
            "/users": {
                "get": {
                    "parameters": [
                        {
                            "name": "limit",
                            "in": "query",
                            "required": false,
                            "schema": {
                                "type": "integer"
                            }
                        }
                    ],
                    "responses": {
                        "200": {
                            "description": "Success"
                        }
                    }
                }
            }
        }
    }"#;

    let new_api = r#"{
        "openapi": "3.0.0",
        "info": {
            "version": "1.1.0",
            "title": "Test API"
        },
        "paths": {
            "/users": {
                "get": {
                    "parameters": [
                        {
                            "name": "limit",
                            "in": "query",
                            "required": true,
                            "schema": {
                                "type": "integer"
                            }
                        }
                    ],
                    "responses": {
                        "200": {
                            "description": "Success"
                        }
                    }
                }
            }
        }
    }"#;

    let analyzer = OpenApiAnalyzer;
    let result = analyzer.analyze_compatibility(
        &create_schema(old_api, "1.0.0"),
        &create_schema(new_api, "1.1.0")
    ).unwrap();

    assert!(!result.is_compatible);
    assert!(result.changes.iter().any(|c| matches!(c.change_type, ChangeType::Modification)));
}