tsk-5: Add contact (#7)

Closes #5

Reviewed-on: phoenix/textsender-api#7
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

internal/handler/contact_test.go

@@ -0,0 +1,53 @@
+package handler
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+
+	"git.kundeng.us/phoenix/textsender-api/internal/db"
+	"git.kundeng.us/phoenix/textsender-api/internal/handler/endpoint"
+)
+
+type Request struct {
+	PhoneNumber string
+	UserId      uuid.UUID
+}
+
+func TestCreateContactWithMock(t *testing.T) {
+	mockstore := NewMockContactStore()
+	handler := NewContactHandler(mockstore)
+
+	testUserId := uuid.New()
+	testBody := Request{PhoneNumber: "+12335403383", UserId: testUserId}
+	jsonValue, _ := json.Marshal(testBody)
+
+	req, _ := http.NewRequest("POST", endpoint.ADD_CONTACT_ENDPOINT, strings.NewReader(string(jsonValue)))
+	rr := httptest.NewRecorder()
+
+	handler.AddContact(rr, req)
+
+	assert.Equal(t, http.StatusCreated, rr.Code)
+
+	var response AddContactResponse
+	err := json.Unmarshal(rr.Body.Bytes(), &response)
+	assert.NoError(t, err, "Error Creating contact %v", err)
+
+	assert.NotEmpty(t, response.Data, "No Contact created")
+
+	assert.NotNil(t, response.Data[0].Id, "Id should not be nil")
+}
+
+func resetTestDB(t *testing.T) {
+	t.Helper()
+	_, err := db.Pool.Exec(context.Background(), "DELETE FROM contacts")
+	if err != nil {
+		t.Fatalf("Failed to reset test database: %v", err)
+	}
+}