1 files changed, 97 insertions, 0 deletions
diff --git a/internal/handlers/heuristic_test.go b/internal/handlers/heuristic_test.go
new file mode 100644
index 0000000..f76fdc0
--- /dev/null
+++ b/internal/handlers/heuristic_test.go
@@ -0,0 +1,97 @@
+package handlers
+
+import (
+	"net/http/httptest"
+	"os"
+	"strings"
+	"testing"
+	"time"
+
+	"task-dashboard/internal/models"
+	"task-dashboard/internal/store"
+)
+
+func TestHandleTasks_Heuristic(t *testing.T) {
+	// Create temp database file
+	tmpFile, err := os.CreateTemp("", "test_heuristic_*.db")
+	if err != nil {
+		t.Fatalf("Failed to create temp db: %v", err)
+	}
+	tmpFile.Close()
+	defer os.Remove(tmpFile.Name())
+
+	// Save current directory and change to project root
+	originalDir, err := os.Getwd()
+	if err != nil {
+		t.Fatalf("Failed to get working directory: %v", err)
+	}
+
+	// Change to project root (2 levels up from internal/handlers)
+	if err := os.Chdir("../../"); err != nil {
+		t.Fatalf("Failed to change to project root: %v", err)
+	}
+	defer os.Chdir(originalDir)
+
+	// Initialize store (this runs migrations)
+	db, err := store.New(tmpFile.Name())
+	if err != nil {
+		t.Fatalf("Failed to initialize store: %v", err)
+	}
+	defer db.Close()
+
+	// Seed Data
+	// Board 1: Has actionable lists
+	board1 := models.Board{ID: "b1", Name: "Work Board"}
+
+	// Card 1: Has Due Date (Should appear)
+	due := time.Now()
+	card1 := models.Card{ID: "c1", Name: "Due Task", ListID: "l1", ListName: "Backlog", DueDate: &due, BoardName: "Work Board"}
+
+	// Card 2: No Due Date, Actionable List (Should appear)
+	card2 := models.Card{ID: "c2", Name: "Doing Task", ListID: "l2", ListName: "Doing", BoardName: "Work Board"}
+
+	// Card 3: No Due Date, Non-Actionable List (Should NOT appear)
+	card3 := models.Card{ID: "c3", Name: "Backlog Task", ListID: "l1", ListName: "Backlog", BoardName: "Work Board"}
+
+	// Card 4: No Due Date, "To Do" List (Should appear)
+	card4 := models.Card{ID: "c4", Name: "Todo Task", ListID: "l3", ListName: "To Do", BoardName: "Work Board"}
+
+	board1.Cards = []models.Card{card1, card2, card3, card4}
+
+	if err := db.SaveBoards([]models.Board{board1}); err != nil {
+		t.Fatalf("Failed to save boards: %v", err)
+	}
+
+	// Create Handler
+	h := NewTabsHandler(db)
+
+	// Skip if templates are not loaded
+	if h.templates == nil {
+		t.Skip("Templates not available in test environment")
+	}
+
+	req := httptest.NewRequest("GET", "/tabs/tasks", nil)
+	w := httptest.NewRecorder()
+
+	// Execute
+	h.HandleTasks(w, req)
+
+	// Verify
+	resp := w.Body.String()
+
+	// Check for presence of expected tasks
+	if !strings.Contains(resp, "Due Task") {
+		t.Errorf("Expected 'Due Task' to be present")
+	}
+	if !strings.Contains(resp, "Doing Task") {
+		t.Errorf("Expected 'Doing Task' to be present")
+	}
+	if !strings.Contains(resp, "Todo Task") {
+		t.Errorf("Expected 'Todo Task' to be present")
+	}
+
+	// Check for absence of non-expected tasks
+	if strings.Contains(resp, "Backlog Task") {
+		t.Errorf("Expected 'Backlog Task' to be ABSENT")
+	}
+}