diff --git a/core/task/handler/runner_test.go b/core/task/handler/runner_test.go
index b17113f6..10eca89d 100644
--- a/core/task/handler/runner_test.go
+++ b/core/task/handler/runner_test.go
@@ -11,6 +11,7 @@ import (
 
 	"github.com/apex/log"
 	"github.com/crawlab-team/crawlab/core/utils"
+	"github.com/crawlab-team/crawlab/grpc"
 
 	"github.com/crawlab-team/crawlab/core/constants"
 	"github.com/crawlab-team/crawlab/core/models/models"
@@ -174,3 +175,180 @@ func TestRunner_Cancel(t *testing.T) {
 	}
 	t.Errorf("Process with PID %d was not killed within timeout", runner.pid)
 }
+
+func TestRunner_HandleIPCData(t *testing.T) {
+	// Setup test data
+	runner := setupTest(t)
+
+	// Create pipes for testing
+	pr, pw := io.Pipe()
+	defer pr.Close()
+	defer pw.Close()
+	runner.stdoutPipe = pr
+
+	// Start IPC reader
+	go runner.startIPCReader()
+
+	// Test cases
+	testCases := []struct {
+		name     string
+		payload  interface{}
+		expected int // expected number of records
+	}{
+		{
+			name: "single object",
+			payload: map[string]interface{}{
+				"field1": "value1",
+				"field2": 123,
+			},
+			expected: 1,
+		},
+		{
+			name: "array of objects",
+			payload: []map[string]interface{}{
+				{
+					"field1": "value1",
+					"field2": 123,
+				},
+				{
+					"field1": "value2",
+					"field2": 456,
+				},
+			},
+			expected: 2,
+		},
+		{
+			name:     "empty payload",
+			payload:  nil,
+			expected: 0,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			// Create a channel to track processed messages
+			processed := make(chan int)
+
+			// Mock the gRPC connection
+			runner.conn = &mockConnectClient{
+				sendFunc: func(req *grpc.TaskServiceConnectRequest) error {
+					// Verify the request
+					assert.Equal(t, grpc.TaskServiceConnectCode_INSERT_DATA, req.Code)
+					assert.Equal(t, runner.tid.Hex(), req.TaskId)
+
+					// If payload was nil, we expect no data
+					if tc.payload == nil {
+						processed <- 0
+						return nil
+					}
+
+					// Unmarshal the data to verify record count
+					var records []map[string]interface{}
+					err := json.Unmarshal(req.Data, &records)
+					assert.NoError(t, err)
+					processed <- len(records)
+					return nil
+				},
+			}
+
+			// Create test message
+			testMsg := IPCMessage{
+				Type:    IPCMessageData,
+				Payload: tc.payload,
+				IPC:     true,
+			}
+
+			// Convert message to JSON and write to pipe
+			go func() {
+				jsonData, err := json.Marshal(testMsg)
+				assert.NoError(t, err)
+				_, err = fmt.Fprintln(pw, string(jsonData))
+				assert.NoError(t, err)
+			}()
+
+			// Wait for processing with timeout
+			select {
+			case recordCount := <-processed:
+				assert.Equal(t, tc.expected, recordCount)
+			case <-time.After(3 * time.Second):
+				t.Fatal("timeout waiting for IPC message to be processed")
+			}
+		})
+	}
+}
+
+// mockConnectClient is a mock implementation of the gRPC Connect client
+type mockConnectClient struct {
+	grpc.TaskService_ConnectClient
+	sendFunc func(*grpc.TaskServiceConnectRequest) error
+}
+
+func (m *mockConnectClient) Send(req *grpc.TaskServiceConnectRequest) error {
+	if m.sendFunc != nil {
+		return m.sendFunc(req)
+	}
+	return nil
+}
+
+func TestRunner_HandleIPCInvalidData(t *testing.T) {
+	// Setup test data
+	runner := setupTest(t)
+
+	// Create pipes for testing
+	pr, pw := io.Pipe()
+	defer pr.Close()
+	defer pw.Close()
+	runner.stdoutPipe = pr
+
+	// Start IPC reader
+	go runner.startIPCReader()
+
+	// Test cases for invalid data
+	testCases := []struct {
+		name    string
+		message string // Raw message to send
+	}{
+		{
+			name:    "invalid json",
+			message: "{ invalid json",
+		},
+		{
+			name:    "non-ipc json",
+			message: `{"type": "data", "payload": {"field": "value"}}`, // Missing IPC flag
+		},
+		{
+			name:    "invalid payload type",
+			message: `{"type": "data", "payload": "invalid", "ipc": true}`,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			// Create a channel to ensure no data is processed
+			processed := make(chan struct{})
+
+			// Mock the gRPC connection
+			runner.conn = &mockConnectClient{
+				sendFunc: func(req *grpc.TaskServiceConnectRequest) error {
+					// This should not be called for invalid data
+					processed <- struct{}{}
+					return nil
+				},
+			}
+
+			// Write test message to pipe
+			go func() {
+				_, err := fmt.Fprintln(pw, tc.message)
+				assert.NoError(t, err)
+			}()
+
+			// Wait briefly to ensure no processing occurs
+			select {
+			case <-processed:
+				t.Error("invalid message was processed")
+			case <-time.After(1 * time.Second):
+				// Success - no processing occurred
+			}
+		})
+	}
+}