Add graphql_nodes tests (#40)

* feat:add graphql_nodes tests

Signed-off-by: nabil salah <nabil.salah203@gmail.com>

* fix: linting

Signed-off-by: nabil salah <nabil.salah203@gmail.com>

---------

Signed-off-by: nabil salah <nabil.salah203@gmail.com>

Author: Nabil-Salah

pkg/perf/graphql/graphql_nodes_test.go

@@ -0,0 +1,278 @@
+package graphql
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+const (
+	realEndpoint = "https://graphql.dev.threefold.me/graphql"
+)
+
+func mockGraphQLServer(t *testing.T, statusCode int, responseBody string) *httptest.Server {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(statusCode)
+		fmt.Fprintln(w, responseBody)
+	}))
+	t.Cleanup(server.Close)
+	return server
+}
+
+func TestGetUpNodes_WithFilters(t *testing.T) {
+
+	gql, err := NewGraphQl(realEndpoint)
+	require.NoError(t, err)
+	ctx := context.Background()
+
+	t.Run("with node limit", func(t *testing.T) {
+		nodes, err := gql.GetUpNodes(ctx, 5, 0, 0, false, false)
+		require.NoError(t, err)
+
+		assert.LessOrEqual(t, len(nodes), 5)
+	})
+
+	t.Run("with ipv4 filter", func(t *testing.T) {
+		nodes, err := gql.GetUpNodes(ctx, 0, 0, 0, true, false)
+		require.NoError(t, err)
+
+		for _, node := range nodes {
+			assert.NotEmpty(t, node.PublicConfig.Ipv4)
+		}
+	})
+
+	t.Run("with ipv6 filter", func(t *testing.T) {
+		nodes, err := gql.GetUpNodes(ctx, 0, 0, 0, false, true)
+		require.NoError(t, err)
+
+		for _, node := range nodes {
+			assert.NotEmpty(t, node.PublicConfig.Ipv6)
+		}
+	})
+}
+
+func TestGetItemTotalCount(t *testing.T) {
+	successResponse := `{
+		"data": {
+			"items": {
+				"count": 42
+			}
+		}
+	}`
+
+	server := mockGraphQLServer(t, http.StatusOK, successResponse)
+
+	t.Run("get count", func(t *testing.T) {
+		gql, err := NewGraphQl(server.URL)
+		require.NoError(t, err)
+
+		ctx := context.Background()
+		count, err := gql.getItemTotalCount(ctx, "nodes", "where: {}")
+
+		require.NoError(t, err)
+		assert.Equal(t, 42, count)
+	})
+}
+
+// TestExec tests the exec method directly
+func TestExec(t *testing.T) {
+	successResponse := `{
+		"data": {
+			"test": "success"
+		}
+	}`
+
+	failureResponse := `{
+		"errors": [
+			{"message": "something went wrong"}
+		]
+	}`
+
+	successServer := mockGraphQLServer(t, http.StatusOK, successResponse)
+	failureServer := mockGraphQLServer(t, http.StatusInternalServerError, failureResponse)
+
+	t.Run("success on first url", func(t *testing.T) {
+		gql, err := NewGraphQl(successServer.URL)
+		require.NoError(t, err)
+
+		result := struct {
+			Test string
+		}{}
+
+		err = gql.exec(context.Background(), "query { test }", &result, nil)
+		require.NoError(t, err)
+		assert.Equal(t, "success", result.Test)
+	})
+
+	t.Run("fallback to second url", func(t *testing.T) {
+		gql, err := NewGraphQl(failureServer.URL, successServer.URL)
+		require.NoError(t, err)
+
+		result := struct {
+			Test string
+		}{}
+
+		err = gql.exec(context.Background(), "query { test }", &result, nil)
+		require.NoError(t, err)
+		assert.Equal(t, "success", result.Test)
+	})
+
+	t.Run("all urls fail", func(t *testing.T) {
+		gql, err := NewGraphQl(failureServer.URL, failureServer.URL)
+		require.NoError(t, err)
+
+		result := struct {
+			Test string
+		}{}
+
+		err = gql.exec(context.Background(), "query { test }", &result, nil)
+		require.Error(t, err)
+	})
+}
+
+func TestIntegration_NodeFiltering(t *testing.T) {
+
+	gql, err := NewGraphQl(realEndpoint)
+	require.NoError(t, err)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	t.Run("nodes with IPv4 only", func(t *testing.T) {
+		nodes, err := gql.GetUpNodes(ctx, 20, 0, 0, true, false)
+		require.NoError(t, err)
+		for i, node := range nodes {
+			assert.NotEmpty(t, node.PublicConfig.Ipv4, "Node %d should have IPv4", i)
+		}
+	})
+
+	t.Run("nodes with IPv6 only", func(t *testing.T) {
+		nodes, err := gql.GetUpNodes(ctx, 20, 0, 0, false, true)
+		require.NoError(t, err)
+		for i, node := range nodes {
+			assert.NotEmpty(t, node.PublicConfig.Ipv6, "Node %d should have IPv6", i)
+		}
+	})
+
+	t.Run("nodes with both IPv4 and IPv6", func(t *testing.T) {
+		nodes, err := gql.GetUpNodes(ctx, 10, 0, 0, true, true)
+		require.NoError(t, err)
+		for i, node := range nodes {
+			assert.NotEmpty(t, node.PublicConfig.Ipv4, "Node %d should have IPv4", i)
+			assert.NotEmpty(t, node.PublicConfig.Ipv6, "Node %d should have IPv6", i)
+		}
+	})
+}
+
+func TestIntegration_PaginationAndLimits(t *testing.T) {
+
+	gql, err := NewGraphQl(realEndpoint)
+	require.NoError(t, err)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	t.Run("different_limits", func(t *testing.T) {
+		limits := []int{1, 5, 10, 20, 50}
+
+		for _, limit := range limits {
+			nodes, err := gql.GetUpNodes(ctx, limit, 0, 0, false, false)
+			require.NoError(t, err)
+			assert.LessOrEqual(t, len(nodes), limit,
+				"Returned %d nodes but limit was %d", len(nodes), limit)
+		}
+	})
+}
+
+func TestIntegration_ErrorHandling(t *testing.T) {
+
+	t.Run("invalid_endpoint", func(t *testing.T) {
+		gql, err := NewGraphQl("https://invalid-endpoint-that-does-not-exist.com/graphql")
+		require.NoError(t, err)
+
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+
+		_, err = gql.GetUpNodes(ctx, 5, 0, 0, false, false)
+		require.Error(t, err)
+	})
+
+	t.Run("timeout_handling", func(t *testing.T) {
+		gql, err := NewGraphQl(realEndpoint)
+		require.NoError(t, err)
+
+		ctx, cancel := context.WithTimeout(context.Background(), 1*time.Microsecond)
+		defer cancel()
+
+		_, err = gql.GetUpNodes(ctx, 5, 0, 0, false, false)
+		require.Error(t, err)
+	})
+
+	t.Run("fallback_to_valid_endpoint", func(t *testing.T) {
+		gql, err := NewGraphQl(
+			"https://invalid-endpoint.com/graphql",
+			realEndpoint,
+		)
+		require.NoError(t, err)
+
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+
+		nodes, err := gql.GetUpNodes(ctx, 5, 0, 0, false, false)
+		require.NoError(t, err)
+		assert.GreaterOrEqual(t, len(nodes), 0)
+	})
+}
+
+func TestIntegration_DataValidation(t *testing.T) {
+
+	gql, err := NewGraphQl(realEndpoint)
+	require.NoError(t, err)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	nodes, err := gql.GetUpNodes(ctx, 20, 0, 0, false, false)
+	require.NoError(t, err)
+
+	t.Run("node_id_validation", func(t *testing.T) {
+		nodeIDs := make(map[uint32]bool)
+
+		for i, node := range nodes {
+			assert.Greater(t, node.NodeID, uint32(0), "Node %d has invalid ID", i)
+
+			assert.False(t, nodeIDs[node.NodeID], "Duplicate node ID %d found", node.NodeID)
+			nodeIDs[node.NodeID] = true
+		}
+
+	})
+
+	t.Run("public_config_validation", func(t *testing.T) {
+		var ipv4Count, ipv6Count int
+
+		for i, node := range nodes {
+			hasIPv4 := node.PublicConfig.Ipv4 != ""
+			hasIPv6 := node.PublicConfig.Ipv6 != ""
+
+			if hasIPv4 {
+				ipv4Count++
+				assert.Contains(t, node.PublicConfig.Ipv4, ".",
+					"Node %d IPv4 doesn't look like an IP: %s", i, node.PublicConfig.Ipv4)
+			}
+
+			if hasIPv6 {
+				ipv6Count++
+				assert.Contains(t, node.PublicConfig.Ipv6, ":",
+					"Node %d IPv6 doesn't look like an IP: %s", i, node.PublicConfig.Ipv6)
+			}
+		}
+
+	})
+}