Add full monorepo: virtual-banker, backend, frontend, docs, scripts, deployment

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/api/track1/rate_limiter_test.go

@@ -0,0 +1,87 @@
+package track1
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestInMemoryRateLimiter_Allow(t *testing.T) {
+	config := RateLimitConfig{
+		RequestsPerSecond: 10,
+		RequestsPerMinute: 100,
+		BurstSize:         20,
+	}
+	limiter := NewInMemoryRateLimiter(config)
+
+	key := "test-key"
+
+	// Should allow first 100 requests
+	for i := 0; i < 100; i++ {
+		assert.True(t, limiter.Allow(key), "Request %d should be allowed", i)
+	}
+
+	// 101st request should be denied
+	assert.False(t, limiter.Allow(key), "Request 101 should be denied")
+}
+
+func TestInMemoryRateLimiter_Reset(t *testing.T) {
+	config := RateLimitConfig{
+		RequestsPerMinute: 10,
+	}
+	limiter := NewInMemoryRateLimiter(config)
+
+	key := "test-key"
+
+	// Exhaust limit
+	for i := 0; i < 10; i++ {
+		limiter.Allow(key)
+	}
+	assert.False(t, limiter.Allow(key))
+
+	// Wait for reset (1 minute)
+	time.Sleep(61 * time.Second)
+
+	// Should allow again after reset
+	assert.True(t, limiter.Allow(key))
+}
+
+func TestInMemoryRateLimiter_DifferentKeys(t *testing.T) {
+	config := RateLimitConfig{
+		RequestsPerMinute: 10,
+	}
+	limiter := NewInMemoryRateLimiter(config)
+
+	key1 := "key1"
+	key2 := "key2"
+
+	// Exhaust limit for key1
+	for i := 0; i < 10; i++ {
+		limiter.Allow(key1)
+	}
+	assert.False(t, limiter.Allow(key1))
+
+	// key2 should still have full limit
+	for i := 0; i < 10; i++ {
+		assert.True(t, limiter.Allow(key2), "Request %d for key2 should be allowed", i)
+	}
+}
+
+func TestInMemoryRateLimiter_Cleanup(t *testing.T) {
+	config := RateLimitConfig{
+		RequestsPerMinute: 10,
+	}
+	limiter := NewInMemoryRateLimiter(config)
+
+	key := "test-key"
+	limiter.Allow(key)
+
+	// Cleanup should remove old entries
+	limiter.Cleanup()
+
+	// Entry should still exist if not old enough
+	// This test verifies cleanup doesn't break functionality
+	assert.NotNil(t, limiter)
+}
+