claude@clouddev1
eff2ee8d14
Expand ColumnSpec and Command::AddColumn with the four ADR-0029 constraint slots (not_null, unique, default, check), all defaulting off; `Database::add_column` now takes a ColumnSpec. No behaviour change — the grammar to set the fields and the DDL to enforce them land in the following commits. Isolated here so those commits stay readable. Adds ColumnSpec::new for the unconstrained case; 110 call sites updated. 1172 tests pass; clippy clean.
495 lines
15 KiB
Rust
495 lines
15 KiB
Rust
//! Integration tests for `runtime::enrich_dsl_failure`
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//! (ADR-0019 §6).
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//!
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//! Each test:
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//! 1. Bootstraps a real `Database` (in-memory).
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//! 2. Constructs the schema/data needed to trigger one
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//! class of engine error.
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//! 3. Provokes the failure through the public Database API,
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//! capturing the resulting `DbError`.
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//! 4. Calls `enrich_dsl_failure` and asserts the
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//! `FailureContext` carries the schema-resolved facts a
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//! learner would expect to see in the rendered error.
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//!
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//! Pinpoint diagnostic-table presence is verified for the
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//! UNIQUE INSERT case (the most pedagogically valuable
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//! pinpoint today).
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use tokio::runtime::Runtime;
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use rdbms_playground::db::{Database, DbError, SqliteErrorKind};
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use rdbms_playground::dsl::{
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action::ReferentialAction, ColumnSpec, Command, RowFilter, Type, Value,
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};
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use rdbms_playground::runtime::enrich_dsl_failure;
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fn rt() -> Runtime {
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tokio::runtime::Builder::new_current_thread()
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.enable_all()
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.build()
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.expect("tokio rt")
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}
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fn db() -> Database {
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Database::open(":memory:").expect("open in-memory db")
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}
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// ---- UNIQUE -----------------------------------------------------
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#[test]
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fn enrich_unique_insert_resolves_table_column_value_and_pinpoint() {
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let db = db();
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rt().block_on(async {
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// Create a table with a serial PK; insert a row; insert
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// again with the same PK value to trigger UNIQUE.
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db.create_table(
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"Customers".to_string(),
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vec![
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ColumnSpec::new("id".to_string(), Type::Int),
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ColumnSpec::new("name".to_string(), Type::Text),
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],
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vec!["id".to_string()],
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None,
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)
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.await
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.unwrap();
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db.insert(
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"Customers".to_string(),
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None,
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vec![Value::Number("5".to_string()), Value::Text("Alice".to_string())],
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None,
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)
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.await
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.unwrap();
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// Second insert with the same PK — UNIQUE violation.
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let cmd = Command::Insert {
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table: "Customers".to_string(),
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columns: Some(vec!["id".to_string(), "name".to_string()]),
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values: vec![
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Value::Number("5".to_string()),
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Value::Text("Bob".to_string()),
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],
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};
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let err = db
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.insert(
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"Customers".to_string(),
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Some(vec!["id".to_string(), "name".to_string()]),
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vec![
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Value::Number("5".to_string()),
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Value::Text("Bob".to_string()),
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],
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None,
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)
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.await
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.unwrap_err();
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assert!(matches!(
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err,
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DbError::Sqlite { kind: SqliteErrorKind::UniqueViolation, .. }
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));
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let facts = enrich_dsl_failure(&db, &cmd, &err).await;
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assert_eq!(facts.table.as_deref(), Some("Customers"));
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assert_eq!(facts.column.as_deref(), Some("id"));
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assert_eq!(facts.value.as_deref(), Some("5"));
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// Pinpoint: existing row with id=5 should be present.
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let table = facts.diagnostic_table.expect("UNIQUE pinpoint expected");
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assert_eq!(table.headers, vec!["id".to_string(), "name".to_string()]);
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assert_eq!(table.rows.len(), 1);
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assert_eq!(table.rows[0][0], "5");
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assert_eq!(table.rows[0][1], "Alice");
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});
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}
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#[test]
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fn enrich_unique_insert_natural_order_short_form_resolves_value_via_schema() {
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// `insert into T (1)` — natural-order short form, the
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// helper falls back to schema-driven lookup.
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let db = db();
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rt().block_on(async {
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db.create_table(
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"thing".to_string(),
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vec![ColumnSpec::new("id".to_string(), Type::Int)],
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vec!["id".to_string()],
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None,
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)
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.await
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.unwrap();
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db.insert(
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"thing".to_string(),
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None,
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vec![Value::Number("1".to_string())],
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None,
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)
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.await
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.unwrap();
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let cmd = Command::Insert {
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table: "thing".to_string(),
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columns: None,
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values: vec![Value::Number("1".to_string())],
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};
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let err = db
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.insert(
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"thing".to_string(),
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None,
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vec![Value::Number("1".to_string())],
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None,
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)
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.await
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.unwrap_err();
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let facts = enrich_dsl_failure(&db, &cmd, &err).await;
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assert_eq!(facts.value.as_deref(), Some("1"));
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assert!(facts.diagnostic_table.is_some());
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});
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}
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#[test]
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fn enrich_unique_update_resolves_value_from_assignments() {
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let db = db();
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rt().block_on(async {
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db.create_table(
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"Customers".to_string(),
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vec![
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ColumnSpec::new("id".to_string(), Type::Int),
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ColumnSpec::new("name".to_string(), Type::Text),
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],
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vec!["id".to_string()],
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None,
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)
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.await
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.unwrap();
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db.insert(
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"Customers".to_string(),
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None,
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vec![Value::Number("1".to_string()), Value::Text("Alice".to_string())],
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None,
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)
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.await
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.unwrap();
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db.insert(
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"Customers".to_string(),
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None,
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vec![Value::Number("2".to_string()), Value::Text("Bob".to_string())],
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None,
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)
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.await
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.unwrap();
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// Try to update Bob's id to 1 — collides with Alice.
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let cmd = Command::Update {
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table: "Customers".to_string(),
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assignments: vec![("id".to_string(), Value::Number("1".to_string()))],
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filter: RowFilter::eq("name", Value::Text("Bob".to_string())),
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};
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let err = db
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.update(
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"Customers".to_string(),
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vec![("id".to_string(), Value::Number("1".to_string()))],
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RowFilter::eq("name", Value::Text("Bob".to_string())),
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None,
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)
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.await
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.unwrap_err();
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let facts = enrich_dsl_failure(&db, &cmd, &err).await;
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assert_eq!(facts.column.as_deref(), Some("id"));
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assert_eq!(facts.value.as_deref(), Some("1"));
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});
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}
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// ---- NOT NULL ---------------------------------------------------
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#[test]
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fn enrich_not_null_resolves_table_and_column() {
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let db = db();
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rt().block_on(async {
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// Create a table with a NOT NULL column. The current
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// schema_to_ddl emits NOT NULL on PK columns; make
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// a non-PK column NOT NULL via a multi-column PK
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// setup, then the second column is NOT NULL because
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// it's part of the PK.
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// (We're testing the enrichment, not the constraint
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// emission — even a PK NOT NULL works.)
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db.create_table(
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"T".to_string(),
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vec![
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ColumnSpec::new("a".to_string(), Type::Int),
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ColumnSpec::new("b".to_string(), Type::Text),
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],
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vec!["a".to_string(), "b".to_string()],
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None,
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)
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.await
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.unwrap();
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// Try to insert with NULL for the second PK column.
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let cmd = Command::Insert {
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table: "T".to_string(),
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columns: Some(vec!["a".to_string(), "b".to_string()]),
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values: vec![Value::Number("1".to_string()), Value::Null],
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};
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let err = db
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.insert(
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"T".to_string(),
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Some(vec!["a".to_string(), "b".to_string()]),
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vec![Value::Number("1".to_string()), Value::Null],
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None,
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)
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.await
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.unwrap_err();
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let facts = enrich_dsl_failure(&db, &cmd, &err).await;
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assert_eq!(facts.table.as_deref(), Some("T"));
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assert_eq!(facts.column.as_deref(), Some("b"));
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// Per design: no value field for NOT NULL (the value is null).
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assert!(facts.value.is_none());
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// No pinpoint for NOT NULL.
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assert!(facts.diagnostic_table.is_none());
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});
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}
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// ---- FOREIGN KEY (child-side, INSERT) ---------------------------
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#[test]
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fn enrich_fk_insert_resolves_parent_table_column_and_value() {
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let db = db();
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rt().block_on(async {
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db.create_table(
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"Customers".to_string(),
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vec![ColumnSpec::new("id".to_string(), Type::Int)],
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vec!["id".to_string()],
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None,
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)
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.await
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.unwrap();
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db.create_table(
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"Orders".to_string(),
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vec![
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ColumnSpec::new("id".to_string(), Type::Int),
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ColumnSpec::new("CustId".to_string(), Type::Int),
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],
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vec!["id".to_string()],
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None,
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)
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.await
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.unwrap();
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db.add_relationship(
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None,
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"Customers".to_string(),
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"id".to_string(),
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"Orders".to_string(),
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"CustId".to_string(),
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ReferentialAction::NoAction,
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ReferentialAction::NoAction,
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false,
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None,
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)
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.await
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.unwrap();
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// Insert into Orders with a CustId that has no parent.
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let cmd = Command::Insert {
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table: "Orders".to_string(),
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columns: Some(vec!["id".to_string(), "CustId".to_string()]),
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values: vec![
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Value::Number("1".to_string()),
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Value::Number("999".to_string()),
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],
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};
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let err = db
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.insert(
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"Orders".to_string(),
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Some(vec!["id".to_string(), "CustId".to_string()]),
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vec![
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Value::Number("1".to_string()),
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Value::Number("999".to_string()),
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],
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None,
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)
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.await
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.unwrap_err();
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let facts = enrich_dsl_failure(&db, &cmd, &err).await;
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assert_eq!(facts.table.as_deref(), Some("Orders"));
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assert_eq!(facts.column.as_deref(), Some("CustId"));
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assert_eq!(facts.parent_table.as_deref(), Some("Customers"));
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assert_eq!(facts.parent_column.as_deref(), Some("id"));
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assert_eq!(facts.value.as_deref(), Some("999"));
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// FK pinpoint not implemented in v1.
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assert!(facts.diagnostic_table.is_none());
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});
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}
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#[test]
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fn enrich_fk_insert_natural_order_multi_value_resolves_via_schema() {
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// Regression: `insert into Orders values (4, 11.99)` —
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// natural-order multi-value INSERT, no explicit columns,
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// and the schema has a serial PK that gets auto-skipped.
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// Enrichment must still resolve parent_table /
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// parent_column / value via the schema-aware lookup.
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let db = db();
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rt().block_on(async {
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db.create_table(
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"Customers".to_string(),
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vec![ColumnSpec::new("id".to_string(), Type::Int)],
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vec!["id".to_string()],
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None,
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)
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.await
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.unwrap();
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db.create_table(
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"Orders".to_string(),
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vec![
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ColumnSpec::new("id".to_string(), Type::Serial),
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ColumnSpec::new("CustId".to_string(), Type::Int),
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ColumnSpec::new("Total".to_string(), Type::Real),
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],
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vec!["id".to_string()],
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None,
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)
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.await
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.unwrap();
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db.add_relationship(
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None,
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"Customers".to_string(),
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"id".to_string(),
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"Orders".to_string(),
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"CustId".to_string(),
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ReferentialAction::NoAction,
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ReferentialAction::NoAction,
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false,
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None,
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)
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.await
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.unwrap();
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// Natural-order: serial PK auto-fills, so positional
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// values map to (CustId, Total). CustId=4 has no
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// matching parent → FK violation.
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let cmd = Command::Insert {
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table: "Orders".to_string(),
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columns: None,
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values: vec![
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Value::Number("4".to_string()),
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Value::Number("11.99".to_string()),
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],
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};
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let err = db
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.insert(
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"Orders".to_string(),
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None,
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vec![
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Value::Number("4".to_string()),
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Value::Number("11.99".to_string()),
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],
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None,
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)
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.await
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.unwrap_err();
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let facts = enrich_dsl_failure(&db, &cmd, &err).await;
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assert_eq!(facts.parent_table.as_deref(), Some("Customers"));
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assert_eq!(facts.parent_column.as_deref(), Some("id"));
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assert_eq!(
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facts.value.as_deref(),
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Some("4"),
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"natural-order with serial PK skip should map values[0] to CustId"
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);
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});
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}
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// ---- FOREIGN KEY (parent-side, DELETE) --------------------------
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#[test]
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fn enrich_fk_delete_resolves_child_table() {
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let db = db();
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rt().block_on(async {
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db.create_table(
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"Customers".to_string(),
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vec![ColumnSpec::new("id".to_string(), Type::Int)],
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vec!["id".to_string()],
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None,
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)
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.await
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.unwrap();
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db.create_table(
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"Orders".to_string(),
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vec![
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ColumnSpec::new("id".to_string(), Type::Int),
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ColumnSpec::new("CustId".to_string(), Type::Int),
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],
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vec!["id".to_string()],
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None,
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)
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.await
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.unwrap();
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db.add_relationship(
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None,
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"Customers".to_string(),
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"id".to_string(),
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"Orders".to_string(),
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"CustId".to_string(),
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ReferentialAction::NoAction,
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ReferentialAction::NoAction,
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false,
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None,
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)
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.await
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.unwrap();
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db.insert(
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"Customers".to_string(),
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None,
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vec![Value::Number("1".to_string())],
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None,
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)
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.await
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.unwrap();
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db.insert(
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"Orders".to_string(),
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None,
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vec![Value::Number("1".to_string()), Value::Number("1".to_string())],
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None,
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)
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.await
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.unwrap();
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// Delete the parent that has children — engine refuses.
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let cmd = Command::Delete {
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table: "Customers".to_string(),
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filter: RowFilter::eq("id", Value::Number("1".to_string())),
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};
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let err = db
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.delete(
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"Customers".to_string(),
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RowFilter::eq("id", Value::Number("1".to_string())),
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None,
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)
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.await
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.unwrap_err();
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let facts = enrich_dsl_failure(&db, &cmd, &err).await;
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assert_eq!(facts.table.as_deref(), Some("Customers"));
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assert_eq!(facts.child_table.as_deref(), Some("Orders"));
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});
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}
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|
// ---- non-engine error → empty enrichment ------------------------
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#[test]
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fn enrich_unsupported_returns_default_facts() {
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let db = db();
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rt().block_on(async {
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let err = DbError::Unsupported("nope".to_string());
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let cmd = Command::DropTable { name: "X".to_string() };
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let facts = enrich_dsl_failure(&db, &cmd, &err).await;
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assert!(facts.table.is_none());
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assert!(facts.column.is_none());
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assert!(facts.value.is_none());
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assert!(facts.parent_table.is_none());
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assert!(facts.child_table.is_none());
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assert!(facts.diagnostic_table.is_none());
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});
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}
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