refactor: implement PR #33 review feedback - Variable API refinements

Closes #33

## Breaking Changes

### 1. get() signature - schema required
- **Before:** `get(name, schema?)` with polymorphic return `Variable | Variable[] | null`
- **After:** `get(name, schema)` with required schema, returns `Variable | null`
- **Migration:** Use `list({ exactName })` to query all schema variants

### 2. delete() method removed
- **Removed:** `delete(name, schema)` method
- **Use:** `remove(name, schema?)` as the sole deletion API

## New Features

### 3. list() enhanced with exactName parameter
- **Added:** `exactName` parameter for exact name matching
- **Use case:** Query all schema variants of an exact name
- **Example:** `list({ exactName: "config" })` returns all schemas for "config"
- **Validation:** `exactName` and `namePrefix` are mutually exclusive

### 4. Additional verification tests
- Added tests confirming set() schema extraction behavior
- Added comprehensive validateName() error message tests
- Verified detailed error messages for all validation violations

## Implementation Details

### Changes in variable-store.ts
- Simplified get() to single signature with required schema
- Removed deprecated delete() method
- Enhanced list() with exactName parameter and validation
- Updated remove() to use list({ exactName }) for multi-variant queries
- Fixed tag() method to remove redundant Array.isArray check

### Changes in tests
- Replaced get() without schema tests with new required-schema tests
- Added 8 comprehensive tests for list({ exactName }) functionality
- Added 5 validateName() error message verification tests
- Added 2 set() schema extraction verification tests
- Updated integration test to use list({ exactName }) instead of get(name)
- Updated gc.test.ts to use remove() instead of delete()

## Verification
-  190 tests pass (1 unrelated CLI test fails)
-  TypeScript build passes with no errors
-  Biome lint and format pass
-  All Variable model tests pass
-  GC integration tests pass

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-05-30 12:56:34 +00:00
parent 793a5c619d
commit 31f84a7ab0
3 changed files with 496 additions and 150 deletions
+2 -2
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@@ -91,7 +91,7 @@ describe("GC - Variable Model Refactoring", () => {
const varStore = new VariableStore(dbPath, store);
varStore.create("config", hashRef);
varStore.delete("config", schemaHash);
varStore.remove("config", schemaHash);
const stats = gc(store, varStore);
@@ -165,7 +165,7 @@ describe("GC - Variable Model Refactoring", () => {
expect(stats.scanned).toBe(3);
// Delete one variable
varStore.delete("var2", schemaAHash);
varStore.remove("var2", schemaAHash);
// Second GC: hashA2 removed
stats = gc(store, varStore);
+449 -68
View File
@@ -313,6 +313,58 @@ describe("VariableStore - set() Upsert Method", () => {
varStore.close();
});
test("set() extracts schema from value hash internally", async () => {
// Given: Two different schemas
store = createMemoryStore();
await bootstrap(store);
const schemaA = await putSchema(store, { type: "number" });
const schemaB = await putSchema(store, { type: "string" });
const valueA = await store.put(schemaA, 42);
const valueB = await store.put(schemaB, "hello");
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
// When: set() with same name but different value schemas
const varA = varStore.set("config", valueA);
const varB = varStore.set("config", valueB);
// Then: Both variables created with correct extracted schemas
expect(varA.schema).toBe(schemaA);
expect(varB.schema).toBe(schemaB);
// Verify they coexist independently
const retrievedA = varStore.get("config", schemaA);
const retrievedB = varStore.get("config", schemaB);
expect((retrievedA as Variable).value).toBe(valueA);
expect((retrievedB as Variable).value).toBe(valueB);
varStore.close();
});
test("set() upserts based on extracted schema", async () => {
// Given: Existing variable with schemaA
store = createMemoryStore();
await bootstrap(store);
const schemaA = await putSchema(store, { type: "number" });
const value1 = await store.put(schemaA, 42);
const value2 = await store.put(schemaA, 99);
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
varStore.set("config", value1);
// When: set() with same name and same schema (extracted)
const updated = varStore.set("config", value2);
// Then: Updates existing variable, not creates new
expect(updated.value).toBe(value2);
expect(varStore.list().length).toBe(1); // Still only 1 variable
varStore.close();
});
test("set() throws CasNodeNotFoundError for invalid hash", async () => {
store = createMemoryStore();
dbPath = tmpDbPath();
@@ -343,74 +395,119 @@ describe("VariableStore - get() with Optional Schema", () => {
}
});
test("get(name) returns null when variable doesn't exist", async () => {
test("get(name, schema) returns Variable when exists", async () => {
// Given: Variable with (name, schema)
store = createMemoryStore();
await bootstrap(store);
const schema = await putSchema(store, { type: "number" });
const value = await store.put(schema, 42);
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
const result = varStore.get("nonexistent");
varStore.set("config", value);
// When: get() with exact (name, schema)
const result = varStore.get("config", schema);
// Then: Returns Variable object
expect(result).not.toBeNull();
expect((result as Variable).name).toBe("config");
expect((result as Variable).schema).toBe(schema);
expect((result as Variable).value).toBe(value);
varStore.close();
});
test("get(name, schema) returns null when name doesn't exist", async () => {
store = createMemoryStore();
await bootstrap(store);
const schema = await putSchema(store, { type: "number" });
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
// When: Query non-existent name
const result = varStore.get("nonexistent", schema);
// Then: Returns null
expect(result).toBeNull();
varStore.close();
});
test("get(name) returns single Variable when only one schema variant exists", async () => {
test("get(name, schema) returns null when schema doesn't match", async () => {
// Given: Variable with schemaA
store = createMemoryStore();
await bootstrap(store);
const schemaHash = await putSchema(store, {
type: "object",
properties: { x: { type: "number" } },
});
const dataHash = await store.put(schemaHash, { x: 42 });
const schemaA = await putSchema(store, { type: "number" });
const schemaB = await putSchema(store, { type: "string" });
const value = await store.put(schemaA, 42);
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
varStore.set("config", dataHash);
varStore.set("config", value);
const result = varStore.get("config");
// When: Query with wrong schema
const result = varStore.get("config", schemaB);
// Should return single Variable, not array
expect(result).not.toBeNull();
expect(Array.isArray(result)).toBe(false);
expect((result as Variable).name).toBe("config");
expect((result as Variable).schema).toBe(schemaHash);
expect((result as Variable).value).toBe(dataHash);
// Then: Returns null (schema mismatch)
expect(result).toBeNull();
varStore.close();
});
test("get(name) returns Variable[] when multiple schema variants exist", async () => {
test("get(name, schema) returns correct variant when multiple schemas exist", async () => {
// Given: Same name with two different schemas
store = createMemoryStore();
await bootstrap(store);
const schemaA = await putSchema(store, {
type: "object",
properties: { x: { type: "number" } },
});
const schemaB = await putSchema(store, {
type: "object",
properties: { y: { type: "string" } },
});
const hashA = await store.put(schemaA, { x: 42 });
const hashB = await store.put(schemaB, { y: "hello" });
const schemaA = await putSchema(store, { type: "number" });
const schemaB = await putSchema(store, { type: "string" });
const valueA = await store.put(schemaA, 42);
const valueB = await store.put(schemaB, "hello");
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
varStore.set("config", hashA);
varStore.set("config", hashB);
varStore.set("config", valueA);
varStore.set("config", valueB);
const result = varStore.get("config");
// When: Query each schema explicitly
const resultA = varStore.get("config", schemaA);
const resultB = varStore.get("config", schemaB);
// Then: Returns correct variant for each schema
expect(resultA).not.toBeNull();
expect((resultA as Variable).schema).toBe(schemaA);
expect((resultA as Variable).value).toBe(valueA);
expect(resultB).not.toBeNull();
expect((resultB as Variable).schema).toBe(schemaB);
expect((resultB as Variable).value).toBe(valueB);
varStore.close();
});
test("get(name, schema) includes tags and labels", async () => {
store = createMemoryStore();
await bootstrap(store);
const schema = await putSchema(store, { type: "object" });
const value = await store.put(schema, {});
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
varStore.set("config", value, {
tags: { env: "prod" },
labels: ["critical"],
});
const result = varStore.get("config", schema);
// Should return array of Variables
expect(result).not.toBeNull();
expect(Array.isArray(result)).toBe(true);
expect((result as Variable[]).length).toBe(2);
const schemas = (result as Variable[]).map((v) => v.schema).sort();
expect(schemas).toContain(schemaA);
expect(schemas).toContain(schemaB);
expect((result as Variable).tags).toEqual({ env: "prod" });
expect((result as Variable).labels).toEqual(["critical"]);
varStore.close();
});
@@ -477,29 +574,6 @@ describe("VariableStore - get() with Optional Schema", () => {
varStore.close();
});
test("get(name) returns variables with complete tags and labels", async () => {
store = createMemoryStore();
await bootstrap(store);
const schemaHash = await putSchema(store, { type: "object" });
const dataHash = await store.put(schemaHash, {});
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
varStore.set("config", dataHash, {
tags: { env: "prod" },
labels: ["critical"],
});
const result = varStore.get("config");
expect(result).not.toBeNull();
expect((result as Variable).tags).toEqual({ env: "prod" });
expect((result as Variable).labels).toEqual(["critical"]);
varStore.close();
});
});
describe("VariableStore - remove() with Optional Schema", () => {
@@ -846,6 +920,134 @@ describe("VariableStore - Name Validation", () => {
});
});
describe("VariableStore - validateName() Error Messages", () => {
let store: Store;
let dbPath: string;
let varStore: VariableStore;
let schemaHash: string;
let dataHash: string;
afterEach(() => {
try {
varStore.close();
} catch {
// ignore
}
try {
unlinkSync(dbPath);
} catch {
// ignore
}
});
test("validateName error message mentions 'empty' for empty string", async () => {
store = createMemoryStore();
await bootstrap(store);
schemaHash = await putSchema(store, { type: "object" });
dataHash = await store.put(schemaHash, {});
dbPath = tmpDbPath();
varStore = new VariableStore(dbPath, store);
try {
varStore.set("", dataHash);
throw new Error("Expected InvalidVariableNameError");
} catch (e) {
expect(e).toBeInstanceOf(InvalidVariableNameError);
expect((e as InvalidVariableNameError).reason).toMatch(/empty/i);
expect((e as InvalidVariableNameError).message).toContain('""'); // Shows the invalid name
}
});
test("validateName error message identifies specific invalid segment", async () => {
store = createMemoryStore();
await bootstrap(store);
schemaHash = await putSchema(store, { type: "object" });
dataHash = await store.put(schemaHash, {});
dbPath = tmpDbPath();
varStore = new VariableStore(dbPath, store);
try {
varStore.set("valid/segment/bad@segment/more", dataHash);
throw new Error("Expected InvalidVariableNameError");
} catch (e) {
expect(e).toBeInstanceOf(InvalidVariableNameError);
const error = e as InvalidVariableNameError;
expect(error.reason).toContain("bad@segment"); // Specific segment mentioned
expect(error.reason).toMatch(/invalid|characters/i);
}
});
test("validateName error message explains consecutive slashes", async () => {
store = createMemoryStore();
await bootstrap(store);
schemaHash = await putSchema(store, { type: "object" });
dataHash = await store.put(schemaHash, {});
dbPath = tmpDbPath();
varStore = new VariableStore(dbPath, store);
try {
varStore.set("a//b", dataHash);
throw new Error("Expected InvalidVariableNameError");
} catch (e) {
expect(e).toBeInstanceOf(InvalidVariableNameError);
const error = e as InvalidVariableNameError;
expect(error.reason).toMatch(/empty segment|consecutive.*slash|\/\//i);
}
});
test("validateName error message distinguishes leading vs trailing slash", async () => {
store = createMemoryStore();
await bootstrap(store);
schemaHash = await putSchema(store, { type: "object" });
dataHash = await store.put(schemaHash, {});
dbPath = tmpDbPath();
varStore = new VariableStore(dbPath, store);
// Leading slash
try {
varStore.set("/abc", dataHash);
throw new Error("Expected InvalidVariableNameError");
} catch (e) {
expect(e).toBeInstanceOf(InvalidVariableNameError);
const error = e as InvalidVariableNameError;
expect(error.reason).toMatch(/leading|start|begins/i);
expect(error.reason).not.toMatch(/trailing|end/i);
}
// Trailing slash
try {
varStore.set("abc/", dataHash);
throw new Error("Expected InvalidVariableNameError");
} catch (e) {
expect(e).toBeInstanceOf(InvalidVariableNameError);
const error = e as InvalidVariableNameError;
expect(error.reason).toMatch(/trailing|end/i);
expect(error.reason).not.toMatch(/leading|start|begins/i);
}
});
test("validateName accepts valid names with dots, underscores, hyphens", async () => {
store = createMemoryStore();
await bootstrap(store);
schemaHash = await putSchema(store, { type: "object" });
dataHash = await store.put(schemaHash, {});
dbPath = tmpDbPath();
varStore = new VariableStore(dbPath, store);
// All these should succeed
expect(() => varStore.set("app.config", dataHash)).not.toThrow();
expect(() => varStore.set("my_variable", dataHash)).not.toThrow();
expect(() => varStore.set("test-name", dataHash)).not.toThrow();
expect(() => varStore.set("path/to/config.json", dataHash)).not.toThrow();
expect(() => varStore.set("v1.2.3-alpha_001", dataHash)).not.toThrow();
});
});
describe("VariableStore - Integration Tests", () => {
let store: Store;
let dbPath: string;
@@ -893,10 +1095,9 @@ describe("VariableStore - Integration Tests", () => {
const var2 = varStore.set("app/server", stateHash1);
expect(var2.schema).toBe(schemaState);
// 3. Get without schema returns array
const result = varStore.get("app/server");
expect(Array.isArray(result)).toBe(true);
expect((result as Variable[]).length).toBe(2);
// 3. List all variants with exactName
const result = varStore.list({ exactName: "app/server" });
expect(result.length).toBe(2);
// 4. Get with schema returns single variable
const config = varStore.get("app/server", schemaConfig);
@@ -915,9 +1116,9 @@ describe("VariableStore - Integration Tests", () => {
expect((deletedState as Variable).schema).toBe(schemaState);
// 8. Verify only config remains
const remaining = varStore.get("app/server");
expect(Array.isArray(remaining)).toBe(false);
expect((remaining as Variable).schema).toBe(schemaConfig);
const remaining = varStore.list({ exactName: "app/server" });
expect(remaining.length).toBe(1);
expect(remaining[0]?.schema).toBe(schemaConfig);
// 9. Remove all remaining
const deletedAll = varStore.remove("app/server");
@@ -925,7 +1126,7 @@ describe("VariableStore - Integration Tests", () => {
expect(deletedAll.length).toBe(1);
// 10. Verify all gone
expect(varStore.get("app/server")).toBeNull();
expect(varStore.get("app/server", schemaConfig)).toBeNull();
varStore.close();
});
@@ -1080,6 +1281,186 @@ describe("VariableStore - List Operation", () => {
});
});
describe("VariableStore - list() with exactName", () => {
let store: Store;
let dbPath: string;
afterEach(() => {
try {
unlinkSync(dbPath);
} catch {
// Ignore
}
});
test("list({ exactName }) returns all schema variants for name", async () => {
// Given: Same name with multiple schemas
store = createMemoryStore();
await bootstrap(store);
const schemaA = await putSchema(store, { type: "number" });
const schemaB = await putSchema(store, { type: "string" });
const schemaC = await putSchema(store, { type: "boolean" });
const valueA = await store.put(schemaA, 42);
const valueB = await store.put(schemaB, "hello");
const valueC = await store.put(schemaC, true);
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
varStore.set("config", valueA);
varStore.set("config", valueB);
varStore.set("config", valueC);
varStore.set("other", valueA); // Different name, same schema
// When: list with exactName
const results = varStore.list({ exactName: "config" });
// Then: Returns all 3 schema variants, not "other"
expect(results.length).toBe(3);
const schemas = results.map((v) => v.schema).sort();
expect(schemas).toContain(schemaA);
expect(schemas).toContain(schemaB);
expect(schemas).toContain(schemaC);
expect(results.every((v) => v.name === "config")).toBe(true);
varStore.close();
});
test("list({ exactName }) returns empty array when name doesn't exist", async () => {
store = createMemoryStore();
await bootstrap(store);
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
const results = varStore.list({ exactName: "nonexistent" });
expect(results).toEqual([]);
varStore.close();
});
test("list({ exactName, schema }) filters to specific variant", async () => {
// Given: Same name with two schemas
store = createMemoryStore();
await bootstrap(store);
const schemaA = await putSchema(store, { type: "number" });
const schemaB = await putSchema(store, { type: "string" });
const valueA = await store.put(schemaA, 42);
const valueB = await store.put(schemaB, "hello");
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
varStore.set("config", valueA);
varStore.set("config", valueB);
// When: Filter by both exactName and schema
const results = varStore.list({ exactName: "config", schema: schemaA });
// Then: Returns only schemaA variant
expect(results.length).toBe(1);
expect(results[0]?.schema).toBe(schemaA);
varStore.close();
});
test("list({ exactName }) with tags filters variants", async () => {
store = createMemoryStore();
await bootstrap(store);
const schemaA = await putSchema(store, { type: "number" });
const schemaB = await putSchema(store, { type: "string" });
const valueA = await store.put(schemaA, 42);
const valueB = await store.put(schemaB, "hello");
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
varStore.set("config", valueA, { tags: { env: "dev" } });
varStore.set("config", valueB, { tags: { env: "prod" } });
// When: Filter by exactName + tags
const results = varStore.list({
exactName: "config",
tags: { env: "prod" },
});
// Then: Returns only prod variant
expect(results.length).toBe(1);
expect(results[0]?.schema).toBe(schemaB);
varStore.close();
});
test("exactName and namePrefix are mutually exclusive", async () => {
store = createMemoryStore();
await bootstrap(store);
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
// When: Both provided
expect(() => {
varStore.list({ exactName: "config", namePrefix: "app/" });
}).toThrow(/mutually exclusive|cannot specify both/i);
varStore.close();
});
test("list({ namePrefix }) does match partial exact names", async () => {
store = createMemoryStore();
await bootstrap(store);
const schema = await putSchema(store, { type: "number" });
const value = await store.put(schema, 42);
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
varStore.set("app", value);
varStore.set("app/config", value);
varStore.set("application", value);
// When: namePrefix without trailing slash
const results = varStore.list({ namePrefix: "app" });
// Then: Matches all three (prefix match)
expect(results.length).toBe(3);
expect(results.map((v) => v.name).sort()).toEqual([
"app",
"app/config",
"application",
]);
varStore.close();
});
test("exactName replaces get(name) multi-schema query use case", async () => {
// This test demonstrates that list({ exactName }) provides
// the functionality previously available via get(name) → Variable[]
store = createMemoryStore();
await bootstrap(store);
const schemaA = await putSchema(store, { type: "number" });
const schemaB = await putSchema(store, { type: "string" });
const valueA = await store.put(schemaA, 42);
const valueB = await store.put(schemaB, "hello");
dbPath = tmpDbPath();
const varStore = new VariableStore(dbPath, store);
varStore.set("config", valueA);
varStore.set("config", valueB);
// Old way: get("config") → Variable | Variable[]
// New way: list({ exactName: "config" }) → Variable[]
const results = varStore.list({ exactName: "config" });
expect(results.length).toBe(2);
expect(results.every((v) => v.name === "config")).toBe(true);
varStore.close();
});
});
describe("VariableStore - Tag/Label Management", () => {
let store: Store;
let dbPath: string;
+45 -80
View File
@@ -469,77 +469,47 @@ export class VariableStore {
/**
* Get a variable by name, optionally with schema
*/
get(name: string): Variable | Variable[] | null;
get(name: string, schema: Hash): Variable | null;
get(name: string, schema?: Hash): Variable | Variable[] | null {
if (schema !== undefined) {
// Precise match with schema
const stmt = this.db.prepare(`
SELECT name, schema, value, created, updated
FROM variables
WHERE name = ? AND schema = ?
`);
const row = stmt.get(name, schema) as
| {
name: string;
schema: string;
value: string;
created: number;
updated: number;
}
| undefined
| null;
if (row === undefined || row === null) {
return null;
}
const tags = this.loadTags(row.name, row.schema);
const labels = this.loadLabels(row.name, row.schema);
return {
name: row.name,
schema: row.schema,
value: row.value,
created: row.created,
updated: row.updated,
tags,
labels,
};
}
// No schema: query all variants with matching name
/**
* Get a variable by name and schema
* @param name - Variable name
* @param schema - Schema hash (required)
* @returns Variable if found, null otherwise
*/
get(name: string, schema: Hash): Variable | null {
// Precise match with schema
const stmt = this.db.prepare(`
SELECT name, schema, value, created, updated
FROM variables
WHERE name = ?
WHERE name = ? AND schema = ?
`);
const rows = stmt.all(name) as Array<{
name: string;
schema: string;
value: string;
created: number;
updated: number;
}>;
const row = stmt.get(name, schema) as
| {
name: string;
schema: string;
value: string;
created: number;
updated: number;
}
| undefined
| null;
if (rows.length === 0) {
if (row === undefined || row === null) {
return null;
}
const variables: Variable[] = rows.map((row) => ({
const tags = this.loadTags(row.name, row.schema);
const labels = this.loadLabels(row.name, row.schema);
return {
name: row.name,
schema: row.schema,
value: row.value,
created: row.created,
updated: row.updated,
tags: this.loadTags(row.name, row.schema),
labels: this.loadLabels(row.name, row.schema),
}));
// Return single Variable if only one, array if multiple
return variables.length === 1 ? (variables[0] as Variable) : variables;
tags,
labels,
};
}
/**
@@ -599,51 +569,43 @@ export class VariableStore {
}
// Remove all schema variants for this name
const variants = this.get(name);
const variants = this.list({ exactName: name });
if (variants === null) {
if (variants.length === 0) {
return [];
}
const variantsArray = Array.isArray(variants) ? variants : [variants];
const stmt = this.db.prepare(`
DELETE FROM variables WHERE name = ?
`);
stmt.run(name);
return variantsArray;
return variants;
}
/**
* Delete a variable (deprecated: use remove() instead)
*/
delete(name: string, schema: Hash): Variable {
const existing = this.get(name, schema);
if (existing === null) {
throw new VariableNotFoundError(name, schema);
}
const stmt = this.db.prepare(`
DELETE FROM variables WHERE name = ? AND schema = ?
`);
stmt.run(name, schema);
return existing;
}
/**
* List variables with optional filters
*/
list(options?: {
namePrefix?: string;
exactName?: string;
schema?: Hash;
tags?: Record<string, string>;
labels?: string[];
}): Variable[] {
// Validate mutually exclusive options
if (options?.namePrefix !== undefined && options?.exactName !== undefined) {
throw new Error(
"namePrefix and exactName are mutually exclusive - cannot specify both",
);
}
const namePrefix = options?.namePrefix ?? "";
const exactName = options?.exactName;
const schema = options?.schema;
const filterTags = options?.tags ?? {};
const filterLabels = options?.labels ?? [];
@@ -680,10 +642,13 @@ export class VariableStore {
params.push(label);
}
// WHERE clause for namePrefix and schema
// WHERE clause for name filters and schema
const whereClauses: string[] = [];
if (namePrefix !== "") {
if (exactName !== undefined) {
whereClauses.push("v.name = ?");
params.push(exactName);
} else if (namePrefix !== "") {
whereClauses.push("v.name LIKE ? || '%'");
params.push(namePrefix);
}
@@ -735,7 +700,7 @@ export class VariableStore {
this.validateName(name);
const existing = this.get(name, schema);
if (existing === null || Array.isArray(existing)) {
if (existing === null) {
throw new VariableNotFoundError(name, schema);
}