diff --git a/pkg/zabbixapi/zabbix_api_test.go b/pkg/zabbixapi/zabbix_api_test.go
new file mode 100644
index 0000000..f24c58e
--- /dev/null
+++ b/pkg/zabbixapi/zabbix_api_test.go
@@ -0,0 +1,107 @@
+package zabbixapi
+
+import (
+	"bytes"
+	"context"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"testing"
+
+	"github.com/grafana/grafana-plugin-sdk-go/backend/log"
+	"github.com/stretchr/testify/assert"
+)
+
+type RoundTripFunc func(req *http.Request) *http.Response
+
+func (f RoundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
+	return f(req), nil
+}
+
+//NewTestClient returns *http.Client with Transport replaced to avoid making real calls
+func NewTestClient(fn RoundTripFunc) *http.Client {
+	return &http.Client{
+		Transport: RoundTripFunc(fn),
+	}
+}
+
+func mockZabbixAPI(body string, statusCode int) (*ZabbixAPI, error) {
+	apiLogger := log.New()
+	zabbixURL, err := url.Parse("http://zabbix.org/zabbix")
+	if err != nil {
+		return nil, err
+	}
+
+	return &ZabbixAPI{
+		url:    zabbixURL,
+		logger: apiLogger,
+
+		httpClient: NewTestClient(func(req *http.Request) *http.Response {
+			return &http.Response{
+				StatusCode: statusCode,
+				Body:       ioutil.NopCloser(bytes.NewBufferString(body)),
+				Header:     make(http.Header),
+			}
+		}),
+	}, nil
+}
+
+func TestZabbixAPIUnauthenticatedQuery(t *testing.T) {
+	zabbixApi, _ := mockZabbixAPI(`{"result":"sampleResult"}`, 200)
+	resp, err := zabbixApi.RequestUnauthenticated(context.Background(), "test.get", map[string]interface{}{})
+
+	assert.Equal(t, "sampleResult", resp.MustString())
+	assert.Nil(t, err)
+}
+
+func TestLogin(t *testing.T) {
+	zabbixApi, _ := mockZabbixAPI(`{"result":"secretauth"}`, 200)
+	err := zabbixApi.Authenticate(context.Background(), "user", "password")
+
+	assert.Nil(t, err)
+	assert.Equal(t, "secretauth", zabbixApi.auth)
+}
+
+func TestZabbixAPI(t *testing.T) {
+	tests := []struct {
+		name                string
+		auth                string
+		mockApiResponse     string
+		mockApiResponseCode int
+		expectedResult      string
+		expectedError       error
+	}{
+		{
+			name:                "Simple request",
+			auth:                "secretauth",
+			mockApiResponse:     `{"result":"sampleResult"}`,
+			mockApiResponseCode: 200,
+			expectedResult:      "sampleResult",
+			expectedError:       nil,
+		},
+		{
+			name:                "Request should return error if API not authenticated",
+			auth:                "",
+			mockApiResponse:     `{"result":"sampleResult"}`,
+			mockApiResponseCode: 200,
+			expectedResult:      "",
+			expectedError:       ErrNotAuthenticated,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			zabbixApi, _ := mockZabbixAPI(tt.mockApiResponse, tt.mockApiResponseCode)
+			zabbixApi.auth = tt.auth
+			resp, err := zabbixApi.Request(context.Background(), "test.get", map[string]interface{}{})
+
+			if tt.expectedError != nil {
+				assert.Equal(t, err, tt.expectedError)
+			} else {
+				assert.NotNil(t, resp)
+				// assert.Equal(t, tt.expectedResult, resp.MustString())
+				assert.Nil(t, err)
+			}
+		})
+	}
+}