Use more detailed stat names

pool.go

@@ -60,11 +60,13 @@ type Pool struct {
 	allResources  []*Resource
 	idleResources []*Resource
 
-	maxSize int
-	closed  bool
-
 	constructor Constructor
 	destructor  Destructor
+	maxSize     int
+
+	acquireCount uint64
+
+	closed bool
 }
 
 func NewPool(constructor Constructor, destructor Destructor, maxSize int) *Pool {
@@ -97,53 +99,53 @@ func (p *Pool) Close() {
 }
 
 type Stat struct {
-	constructing int
-	acquired     int
-	idle         int
-	maxSize      int
+	constructingResources int
+	acquiredResources     int
+	idleResources         int
+	maxResources          int
 }
 
-// Size returns the total number of resources in the pool.
-func (s *Stat) Size() int {
-	return s.constructing + s.acquired + s.idle
+// TotalResource returns the total number of resources in the pool.
+func (s *Stat) TotalResources() int {
+	return s.constructingResources + s.acquiredResources + s.idleResources
 }
 
-// Constructing returns the number of resources with construction in progress in
+// ConstructingResources returns the number of resources with construction in progress in
 // the pool.
-func (s *Stat) Constructing() int {
-	return s.constructing
+func (s *Stat) ConstructingResources() int {
+	return s.constructingResources
 }
 
-// Acquired returns the number of acquired resources in the pool.
-func (s *Stat) Acquired() int {
-	return s.acquired
+// AcquiredResources returns the number of acquired resources in the pool.
+func (s *Stat) AcquiredResources() int {
+	return s.acquiredResources
 }
 
-// Idle returns the number of idle resources in the pool.
-func (s *Stat) Idle() int {
-	return s.idle
+// IdleResources returns the number of idle resources in the pool.
+func (s *Stat) IdleResources() int {
+	return s.idleResources
 }
 
-// MaxSize returns the maximum size of the pool
-func (s *Stat) MaxSize() int {
-	return s.maxSize
+// MaxResources returns the maximum size of the pool
+func (s *Stat) MaxResources() int {
+	return s.maxResources
 }
 
 // Stat returns the current pool statistics.
 func (p *Pool) Stat() *Stat {
 	p.cond.L.Lock()
 	s := &Stat{
-		maxSize: p.maxSize,
+		maxResources: p.maxSize,
 	}
 
 	for _, res := range p.allResources {
 		switch res.status {
 		case resourceStatusConstructing:
-			s.constructing += 1
+			s.constructingResources += 1
 		case resourceStatusIdle:
-			s.idle += 1
+			s.idleResources += 1
 		case resourceStatusAcquired:
-			s.acquired += 1
+			s.acquiredResources += 1
 		}
 	}
 

pool_test.go

@@ -113,7 +113,7 @@ func TestPoolAcquireDoesNotCreatesResourceWhenItWouldExceedMaxSize(t *testing.T)
 	wg.Wait()
 
 	assert.Equal(t, 1, createCounter.Value())
-	assert.Equal(t, 1, pool.Stat().Size())
+	assert.Equal(t, 1, pool.Stat().TotalResources())
 }
 
 func TestPoolAcquireWithCancellableContext(t *testing.T) {
@@ -140,7 +140,7 @@ func TestPoolAcquireWithCancellableContext(t *testing.T) {
 	wg.Wait()
 
 	assert.Equal(t, 1, createCounter.Value())
-	assert.Equal(t, 1, pool.Stat().Size())
+	assert.Equal(t, 1, pool.Stat().TotalResources())
 }
 
 func TestPoolAcquireReturnsErrorFromFailedResourceCreate(t *testing.T) {
@@ -292,20 +292,20 @@ func TestPoolStat(t *testing.T) {
 	<-waitingChan
 	stat := pool.Stat()
 
-	assert.Equal(t, 2, stat.Size())
-	assert.Equal(t, 1, stat.Constructing())
-	assert.Equal(t, 1, stat.Acquired())
-	assert.Equal(t, 0, stat.Idle())
-	assert.Equal(t, 10, stat.MaxSize())
+	assert.Equal(t, 2, stat.TotalResources())
+	assert.Equal(t, 1, stat.ConstructingResources())
+	assert.Equal(t, 1, stat.AcquiredResources())
+	assert.Equal(t, 0, stat.IdleResources())
+	assert.Equal(t, 10, stat.MaxResources())
 
 	resAcquired.Release()
 
 	stat = pool.Stat()
-	assert.Equal(t, 2, stat.Size())
-	assert.Equal(t, 1, stat.Constructing())
-	assert.Equal(t, 0, stat.Acquired())
-	assert.Equal(t, 1, stat.Idle())
-	assert.Equal(t, 10, stat.MaxSize())
+	assert.Equal(t, 2, stat.TotalResources())
+	assert.Equal(t, 1, stat.ConstructingResources())
+	assert.Equal(t, 0, stat.AcquiredResources())
+	assert.Equal(t, 1, stat.IdleResources())
+	assert.Equal(t, 10, stat.MaxResources())
 
 	close(endWaitChan)
 }
@@ -325,7 +325,7 @@ func TestResourceDestroyRemovesResourceFromPool(t *testing.T) {
 
 	res.Hijack()
 
-	assert.Equal(t, 0, pool.Stat().Size())
+	assert.Equal(t, 0, pool.Stat().TotalResources())
 	assert.Equal(t, 0, closeCalls.Value())
 }
 
@@ -337,9 +337,9 @@ func TestResourceHijackRemovesResourceFromPoolButDoesNotDestroy(t *testing.T) {
 	require.NoError(t, err)
 	assert.Equal(t, 1, res.Value())
 
-	assert.Equal(t, 1, pool.Stat().Size())
+	assert.Equal(t, 1, pool.Stat().TotalResources())
 	res.Destroy()
-	assert.Equal(t, 0, pool.Stat().Size())
+	assert.Equal(t, 0, pool.Stat().TotalResources())
 }
 
 func TestPoolAcquireReturnsErrorWhenPoolIsClosed(t *testing.T) {