molecule-core/workspace-server/internal/handlers/budget_test.go
Hongming Wang 479a027e4b chore: open-source restructure — rename dirs, remove internal files, scrub secrets
Renames:
- platform/ → workspace-server/ (Go module path stays as "platform" for
  external dep compat — will update after plugin module republish)
- workspace-template/ → workspace/

Removed (moved to separate repos or deleted):
- PLAN.md — internal roadmap (move to private project board)
- HANDOFF.md, AGENTS.md — one-time internal session docs
- .claude/ — gitignored entirely (local agent config)
- infra/cloudflare-worker/ → Molecule-AI/molecule-tenant-proxy
- org-templates/molecule-dev/ → standalone template repo
- .mcp-eval/ → molecule-mcp-server repo
- test-results/ — ephemeral, gitignored

Security scrubbing:
- Cloudflare account/zone/KV IDs → placeholders
- Real EC2 IPs → <EC2_IP> in all docs
- CF token prefix, Neon project ID, Fly app names → redacted
- Langfuse dev credentials → parameterized
- Personal runner username/machine name → generic

Community files:
- CONTRIBUTING.md — build, test, branch conventions
- CODE_OF_CONDUCT.md — Contributor Covenant 2.1

All Dockerfiles, CI workflows, docker-compose, railway.toml, render.yaml,
README, CLAUDE.md updated for new directory names.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-18 00:24:44 -07:00

459 lines
15 KiB
Go

package handlers
import (
"bytes"
"database/sql"
"encoding/json"
"net/http"
"net/http/httptest"
"testing"
"github.com/DATA-DOG/go-sqlmock"
"github.com/gin-gonic/gin"
)
// ==================== GET /workspaces/:id/budget ====================
// TestBudgetGet_NotFound verifies that GET /budget returns 404 for an unknown
// workspace ID (ErrNoRows from the budget query).
func TestBudgetGet_NotFound(t *testing.T) {
mock := setupTestDB(t)
setupTestRedis(t)
mock.ExpectQuery(`SELECT budget_limit, COALESCE\(monthly_spend, 0\)`).
WithArgs("ws-not-there").
WillReturnError(sql.ErrNoRows)
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-not-there"}}
c.Request = httptest.NewRequest("GET", "/workspaces/ws-not-there/budget", nil)
h := NewBudgetHandler()
h.GetBudget(c)
if w.Code != http.StatusNotFound {
t.Errorf("expected 404, got %d: %s", w.Code, w.Body.String())
}
if err := mock.ExpectationsWereMet(); err != nil {
t.Errorf("sqlmock expectations not met: %v", err)
}
}
// TestBudgetGet_DBError verifies that a non-ErrNoRows DB error returns 500.
func TestBudgetGet_DBError(t *testing.T) {
mock := setupTestDB(t)
setupTestRedis(t)
mock.ExpectQuery(`SELECT budget_limit, COALESCE\(monthly_spend, 0\)`).
WithArgs("ws-db-err").
WillReturnError(sql.ErrConnDone)
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-db-err"}}
c.Request = httptest.NewRequest("GET", "/workspaces/ws-db-err/budget", nil)
h := NewBudgetHandler()
h.GetBudget(c)
if w.Code != http.StatusInternalServerError {
t.Errorf("expected 500, got %d: %s", w.Code, w.Body.String())
}
if err := mock.ExpectationsWereMet(); err != nil {
t.Errorf("sqlmock expectations not met: %v", err)
}
}
// TestBudgetGet_NoLimit verifies that budget_limit and budget_remaining are
// null when the workspace has no budget ceiling configured.
func TestBudgetGet_NoLimit(t *testing.T) {
mock := setupTestDB(t)
setupTestRedis(t)
mock.ExpectQuery(`SELECT budget_limit, COALESCE\(monthly_spend, 0\)`).
WithArgs("ws-free").
WillReturnRows(sqlmock.NewRows([]string{"budget_limit", "monthly_spend"}).
AddRow(nil, int64(42)))
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-free"}}
c.Request = httptest.NewRequest("GET", "/workspaces/ws-free/budget", nil)
h := NewBudgetHandler()
h.GetBudget(c)
if w.Code != http.StatusOK {
t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
}
var resp map[string]interface{}
if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
t.Fatalf("parse response: %v", err)
}
if resp["budget_limit"] != nil {
t.Errorf("expected budget_limit=null, got %v", resp["budget_limit"])
}
if resp["budget_remaining"] != nil {
t.Errorf("expected budget_remaining=null, got %v", resp["budget_remaining"])
}
if resp["monthly_spend"] != float64(42) {
t.Errorf("expected monthly_spend=42, got %v", resp["monthly_spend"])
}
if err := mock.ExpectationsWereMet(); err != nil {
t.Errorf("sqlmock expectations not met: %v", err)
}
}
// TestBudgetGet_WithLimit verifies that budget_limit, monthly_spend, and
// budget_remaining are all returned correctly when a ceiling is set.
func TestBudgetGet_WithLimit(t *testing.T) {
mock := setupTestDB(t)
setupTestRedis(t)
mock.ExpectQuery(`SELECT budget_limit, COALESCE\(monthly_spend, 0\)`).
WithArgs("ws-capped").
WillReturnRows(sqlmock.NewRows([]string{"budget_limit", "monthly_spend"}).
AddRow(int64(500), int64(123)))
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-capped"}}
c.Request = httptest.NewRequest("GET", "/workspaces/ws-capped/budget", nil)
h := NewBudgetHandler()
h.GetBudget(c)
if w.Code != http.StatusOK {
t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
}
var resp map[string]interface{}
if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
t.Fatalf("parse response: %v", err)
}
if resp["budget_limit"] != float64(500) {
t.Errorf("expected budget_limit=500, got %v", resp["budget_limit"])
}
if resp["monthly_spend"] != float64(123) {
t.Errorf("expected monthly_spend=123, got %v", resp["monthly_spend"])
}
// budget_remaining = 500 - 123 = 377
if resp["budget_remaining"] != float64(377) {
t.Errorf("expected budget_remaining=377, got %v", resp["budget_remaining"])
}
if err := mock.ExpectationsWereMet(); err != nil {
t.Errorf("sqlmock expectations not met: %v", err)
}
}
// TestBudgetGet_OverBudget verifies that budget_remaining can be negative
// when monthly_spend has already exceeded budget_limit.
func TestBudgetGet_OverBudget(t *testing.T) {
mock := setupTestDB(t)
setupTestRedis(t)
mock.ExpectQuery(`SELECT budget_limit, COALESCE\(monthly_spend, 0\)`).
WithArgs("ws-over").
WillReturnRows(sqlmock.NewRows([]string{"budget_limit", "monthly_spend"}).
AddRow(int64(100), int64(150)))
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-over"}}
c.Request = httptest.NewRequest("GET", "/workspaces/ws-over/budget", nil)
h := NewBudgetHandler()
h.GetBudget(c)
if w.Code != http.StatusOK {
t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
}
var resp map[string]interface{}
if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
t.Fatalf("parse response: %v", err)
}
// budget_remaining = 100 - 150 = -50 (negative, but we store actual value)
if resp["budget_remaining"] != float64(-50) {
t.Errorf("expected budget_remaining=-50, got %v", resp["budget_remaining"])
}
if err := mock.ExpectationsWereMet(); err != nil {
t.Errorf("sqlmock expectations not met: %v", err)
}
}
// ==================== PATCH /workspaces/:id/budget ====================
// TestBudgetPatch_MissingField verifies that PATCH /budget with no budget_limit
// field in the body returns 400.
func TestBudgetPatch_MissingField(t *testing.T) {
setupTestDB(t)
setupTestRedis(t)
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-patch-missing"}}
c.Request = httptest.NewRequest("PATCH", "/workspaces/ws-patch-missing/budget",
bytes.NewBufferString(`{"other_field":123}`))
c.Request.Header.Set("Content-Type", "application/json")
h := NewBudgetHandler()
h.PatchBudget(c)
if w.Code != http.StatusBadRequest {
t.Errorf("expected 400, got %d: %s", w.Code, w.Body.String())
}
}
// TestBudgetPatch_InvalidBody verifies that a malformed JSON body returns 400.
func TestBudgetPatch_InvalidBody(t *testing.T) {
setupTestDB(t)
setupTestRedis(t)
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-patch-bad"}}
c.Request = httptest.NewRequest("PATCH", "/workspaces/ws-patch-bad/budget",
bytes.NewBufferString(`not json`))
c.Request.Header.Set("Content-Type", "application/json")
h := NewBudgetHandler()
h.PatchBudget(c)
if w.Code != http.StatusBadRequest {
t.Errorf("expected 400, got %d: %s", w.Code, w.Body.String())
}
}
// TestBudgetPatch_NegativeValue verifies that a negative budget_limit is rejected.
func TestBudgetPatch_NegativeValue(t *testing.T) {
setupTestDB(t)
setupTestRedis(t)
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-negative"}}
c.Request = httptest.NewRequest("PATCH", "/workspaces/ws-negative/budget",
bytes.NewBufferString(`{"budget_limit":-1}`))
c.Request.Header.Set("Content-Type", "application/json")
h := NewBudgetHandler()
h.PatchBudget(c)
if w.Code != http.StatusBadRequest {
t.Errorf("expected 400 for negative budget_limit, got %d: %s", w.Code, w.Body.String())
}
}
// TestBudgetPatch_InvalidType verifies that a non-numeric budget_limit returns 400.
func TestBudgetPatch_InvalidType(t *testing.T) {
setupTestDB(t)
setupTestRedis(t)
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-badtype"}}
c.Request = httptest.NewRequest("PATCH", "/workspaces/ws-badtype/budget",
bytes.NewBufferString(`{"budget_limit":"not-a-number"}`))
c.Request.Header.Set("Content-Type", "application/json")
h := NewBudgetHandler()
h.PatchBudget(c)
if w.Code != http.StatusBadRequest {
t.Errorf("expected 400 for string budget_limit, got %d: %s", w.Code, w.Body.String())
}
}
// TestBudgetPatch_WorkspaceNotFound verifies that PATCH /budget returns 404
// when the workspace doesn't exist.
func TestBudgetPatch_WorkspaceNotFound(t *testing.T) {
mock := setupTestDB(t)
setupTestRedis(t)
mock.ExpectQuery(`SELECT EXISTS.*status != 'removed'`).
WithArgs("ws-no-exist").
WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(false))
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-no-exist"}}
c.Request = httptest.NewRequest("PATCH", "/workspaces/ws-no-exist/budget",
bytes.NewBufferString(`{"budget_limit":500}`))
c.Request.Header.Set("Content-Type", "application/json")
h := NewBudgetHandler()
h.PatchBudget(c)
if w.Code != http.StatusNotFound {
t.Errorf("expected 404, got %d: %s", w.Code, w.Body.String())
}
if err := mock.ExpectationsWereMet(); err != nil {
t.Errorf("sqlmock expectations not met: %v", err)
}
}
// TestBudgetPatch_SetLimit verifies that PATCH /budget with a positive value
// updates the DB and returns the new budget state.
func TestBudgetPatch_SetLimit(t *testing.T) {
mock := setupTestDB(t)
setupTestRedis(t)
// Existence probe
mock.ExpectQuery(`SELECT EXISTS.*status != 'removed'`).
WithArgs("ws-set-limit").
WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
// UPDATE
mock.ExpectExec(`UPDATE workspaces SET budget_limit`).
WithArgs("ws-set-limit", int64(500)).
WillReturnResult(sqlmock.NewResult(0, 1))
// Re-read for response
mock.ExpectQuery(`SELECT budget_limit, COALESCE\(monthly_spend, 0\) FROM workspaces WHERE id`).
WithArgs("ws-set-limit").
WillReturnRows(sqlmock.NewRows([]string{"budget_limit", "monthly_spend"}).
AddRow(int64(500), int64(200)))
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-set-limit"}}
c.Request = httptest.NewRequest("PATCH", "/workspaces/ws-set-limit/budget",
bytes.NewBufferString(`{"budget_limit":500}`))
c.Request.Header.Set("Content-Type", "application/json")
h := NewBudgetHandler()
h.PatchBudget(c)
if w.Code != http.StatusOK {
t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
}
var resp map[string]interface{}
if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
t.Fatalf("parse response: %v", err)
}
if resp["budget_limit"] != float64(500) {
t.Errorf("expected budget_limit=500, got %v", resp["budget_limit"])
}
if resp["monthly_spend"] != float64(200) {
t.Errorf("expected monthly_spend=200, got %v", resp["monthly_spend"])
}
// budget_remaining = 500 - 200 = 300
if resp["budget_remaining"] != float64(300) {
t.Errorf("expected budget_remaining=300, got %v", resp["budget_remaining"])
}
if err := mock.ExpectationsWereMet(); err != nil {
t.Errorf("sqlmock expectations not met: %v", err)
}
}
// TestBudgetPatch_ClearLimit verifies that PATCH /budget with budget_limit=null
// clears the ceiling, making budget_limit and budget_remaining null in the response.
func TestBudgetPatch_ClearLimit(t *testing.T) {
mock := setupTestDB(t)
setupTestRedis(t)
mock.ExpectQuery(`SELECT EXISTS.*status != 'removed'`).
WithArgs("ws-clear-limit").
WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
// UPDATE with NULL
mock.ExpectExec(`UPDATE workspaces SET budget_limit`).
WithArgs("ws-clear-limit", nil).
WillReturnResult(sqlmock.NewResult(0, 1))
// Re-read — budget_limit is now NULL
mock.ExpectQuery(`SELECT budget_limit, COALESCE\(monthly_spend, 0\) FROM workspaces WHERE id`).
WithArgs("ws-clear-limit").
WillReturnRows(sqlmock.NewRows([]string{"budget_limit", "monthly_spend"}).
AddRow(nil, int64(50)))
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-clear-limit"}}
c.Request = httptest.NewRequest("PATCH", "/workspaces/ws-clear-limit/budget",
bytes.NewBufferString(`{"budget_limit":null}`))
c.Request.Header.Set("Content-Type", "application/json")
h := NewBudgetHandler()
h.PatchBudget(c)
if w.Code != http.StatusOK {
t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
}
var resp map[string]interface{}
if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
t.Fatalf("parse response: %v", err)
}
if resp["budget_limit"] != nil {
t.Errorf("expected budget_limit=null after clear, got %v", resp["budget_limit"])
}
if resp["budget_remaining"] != nil {
t.Errorf("expected budget_remaining=null after clear, got %v", resp["budget_remaining"])
}
if err := mock.ExpectationsWereMet(); err != nil {
t.Errorf("sqlmock expectations not met: %v", err)
}
}
// TestBudgetPatch_UpdateDBError verifies that a DB error during the UPDATE
// returns 500.
func TestBudgetPatch_UpdateDBError(t *testing.T) {
mock := setupTestDB(t)
setupTestRedis(t)
mock.ExpectQuery(`SELECT EXISTS.*status != 'removed'`).
WithArgs("ws-patch-dberr").
WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
mock.ExpectExec(`UPDATE workspaces SET budget_limit`).
WithArgs("ws-patch-dberr", int64(500)).
WillReturnError(sql.ErrConnDone)
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-patch-dberr"}}
c.Request = httptest.NewRequest("PATCH", "/workspaces/ws-patch-dberr/budget",
bytes.NewBufferString(`{"budget_limit":500}`))
c.Request.Header.Set("Content-Type", "application/json")
h := NewBudgetHandler()
h.PatchBudget(c)
if w.Code != http.StatusInternalServerError {
t.Errorf("expected 500 on UPDATE error, got %d: %s", w.Code, w.Body.String())
}
if err := mock.ExpectationsWereMet(); err != nil {
t.Errorf("sqlmock expectations not met: %v", err)
}
}
// TestBudgetPatch_ZeroLimit verifies that budget_limit=0 is accepted (it means
// every A2A call is blocked — useful to pause a workspace's LLM spend entirely).
func TestBudgetPatch_ZeroLimit(t *testing.T) {
mock := setupTestDB(t)
setupTestRedis(t)
mock.ExpectQuery(`SELECT EXISTS.*status != 'removed'`).
WithArgs("ws-zero-limit").
WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
mock.ExpectExec(`UPDATE workspaces SET budget_limit`).
WithArgs("ws-zero-limit", int64(0)).
WillReturnResult(sqlmock.NewResult(0, 1))
mock.ExpectQuery(`SELECT budget_limit, COALESCE\(monthly_spend, 0\) FROM workspaces WHERE id`).
WithArgs("ws-zero-limit").
WillReturnRows(sqlmock.NewRows([]string{"budget_limit", "monthly_spend"}).
AddRow(int64(0), int64(0)))
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Params = gin.Params{{Key: "id", Value: "ws-zero-limit"}}
c.Request = httptest.NewRequest("PATCH", "/workspaces/ws-zero-limit/budget",
bytes.NewBufferString(`{"budget_limit":0}`))
c.Request.Header.Set("Content-Type", "application/json")
h := NewBudgetHandler()
h.PatchBudget(c)
if w.Code != http.StatusOK {
t.Errorf("expected 200 for zero budget_limit, got %d: %s", w.Code, w.Body.String())
}
if err := mock.ExpectationsWereMet(); err != nil {
t.Errorf("sqlmock expectations not met: %v", err)
}
}