diff --git a/.github/workflows/ci-test.yml b/.github/workflows/ci-test.yml
index aafbe02..5559924 100644
--- a/.github/workflows/ci-test.yml
+++ b/.github/workflows/ci-test.yml
@@ -20,6 +20,12 @@ jobs:
       - name: Check out code
         uses: actions/checkout@v3
 
+      - name: Download Go modules
+        run: go mod tidy
+
+      - name: Build packages
+        run: go build ./...
+
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v8
         with:
diff --git a/go.mod b/go.mod
index 9e71deb..1e54d42 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,11 @@
 module github.com/MowlCoder/heimdall
 
 go 1.24.2
+
+require github.com/stretchr/testify v1.11.1
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
diff --git a/internal/config/config_test.go b/internal/config/config_test.go
new file mode 100644
index 0000000..e0362f4
--- /dev/null
+++ b/internal/config/config_test.go
@@ -0,0 +1,83 @@
+package config
+
+import (
+	"testing"
+
+	"github.com/MowlCoder/heimdall/internal/domain"
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_Enablement_Notifiers(t *testing.T) {
+
+	cfg := &Config{
+
+		Services: []domain.Service{
+
+			{Name: "My Personal Website", URL: "https://example.com"},
+		},
+		Notifiers: struct {
+			Telegram *struct {
+				ChatID   string "json:\"chatId\""
+				BotToken string "json:\"botToken\""
+				Enabled  bool   "json:\"enabled\""
+			}
+			Discord *struct {
+				Webhook string "json:\"webhook\""
+				Enabled bool   "json:\"enabled\""
+			}
+			Slack *struct {
+				ChatID   string "json:\"chatId\""
+				BotToken string "json:\"botToken\""
+				Enabled  bool   "json:\"enabled\""
+			}
+			Webhook *struct {
+				Webhook string "json:\"webhook\""
+				Enabled bool   "json:\"enabled\""
+			}
+		}{
+
+			Telegram: &struct {
+				ChatID   string "json:\"chatId\""
+				BotToken string "json:\"botToken\""
+				Enabled  bool   "json:\"enabled\""
+			}{
+
+				ChatID:   "-123456789",
+				BotToken: "secret-telegram-bot-token",
+				Enabled:  true,
+			},
+			Slack: &struct {
+				ChatID   string "json:\"chatId\""
+				BotToken string "json:\"botToken\""
+				Enabled  bool   "json:\"enabled\""
+			}{
+				ChatID:   "RandomTest",
+				BotToken: "xoxosecret-slack-bot-token",
+				Enabled:  true,
+			},
+			Discord: &struct {
+				Webhook string "json:\"webhook\""
+				Enabled bool   "json:\"enabled\""
+			}{
+				Webhook: "random",
+				Enabled: true,
+			},
+			Webhook: &struct {
+				Webhook string "json:\"webhook\""
+				Enabled bool   "json:\"enabled\""
+			}{
+				Webhook: "randomWebhook",
+				Enabled: true,
+			},
+		},
+	}
+
+	checkTelegram := cfg.IsTelegramEnabled()
+	assert.True(t, checkTelegram)
+	checkSlack := cfg.IsSlackEnabled()
+	assert.True(t, checkSlack)
+	checkDiscord := cfg.IsDiscordEnabled()
+	assert.True(t, checkDiscord)
+	checkWebhook := cfg.IsWebhookEnabled()
+	assert.True(t, checkWebhook)
+}
diff --git a/internal/domain/service_test.go b/internal/domain/service_test.go
new file mode 100644
index 0000000..2e04456
--- /dev/null
+++ b/internal/domain/service_test.go
@@ -0,0 +1,74 @@
+package domain
+
+import (
+	"testing"
+)
+
+func Test_ParseInterval(t *testing.T) {
+
+	TestCases := []Service{
+		{
+
+			Name:     "TestIntervalString",
+			Interval: "5m",
+		},
+		{
+
+			Name:     "TestNumber",
+			Interval: "1",
+		},
+		{
+
+			Name:     "TestRandom",
+			Interval: "1m",
+		},
+	}
+
+	for _, tc := range TestCases {
+
+		t.Run(tc.Name, func(t *testing.T) {
+
+			_, err := tc.ParseInterval()
+
+			if err != nil {
+
+				t.Errorf("Test case failed: Failed to parse the Interval %v", err)
+			}
+
+		})
+
+	}
+
+}
+
+func Test_ParseIntervalOnlyString(t *testing.T) {
+
+	TestCases := []Service{
+		{
+
+			Name:     "TestIntervalString",
+			Interval: "m",
+		},
+		{
+
+			Name:     "TestNumber",
+			Interval: "s",
+		},
+	}
+
+	for _, tc := range TestCases {
+
+		t.Run(tc.Name, func(t *testing.T) {
+
+			_, err := tc.ParseInterval()
+
+			if err == nil {
+
+				t.Error("Only String Interval pasrse, Test Case Failed")
+			}
+
+		})
+
+	}
+
+}
diff --git a/internal/notifier/utils_test.go b/internal/notifier/utils_test.go
new file mode 100644
index 0000000..4e7f2cd
--- /dev/null
+++ b/internal/notifier/utils_test.go
@@ -0,0 +1,35 @@
+package notifier
+
+import (
+	"fmt"
+	"testing"
+)
+
+func Test_StatusCheck(t *testing.T) {
+
+	TestCases := []int{200, 400, 300, 500}
+	statusCodeTextMap := map[int]string{
+		200: "Success",
+		300: "Redirect",
+		400: "Client Error",
+		500: "Server Error",
+	}
+
+	for _, tc := range TestCases {
+
+		t.Run("Status Code Text test", func(t *testing.T) {
+
+			text := getStatusText(tc)
+
+			if text != statusCodeTextMap[tc] {
+
+				fmt.Println(statusCodeTextMap[tc])
+
+				t.Errorf("Text to status code mapping is incorrect for %v", tc)
+			}
+
+		})
+
+	}
+
+}