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statistics_handler_test.go
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package handler
import (
"context"
"errors"
"net/http"
"net/http/httptest"
"testing"
"time"
"github.com/developer-overheid-nl/don-api-register/pkg/api_client/models"
"github.com/developer-overheid-nl/don-api-register/pkg/api_client/repositories"
"github.com/developer-overheid-nl/don-api-register/pkg/api_client/services"
"github.com/gin-gonic/gin"
"github.com/lib/pq"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
type statisticsAdoptionRepoStub struct {
getSummaryFunc func(ctx context.Context, params repositories.AdoptionQueryParams) (repositories.SummaryResult, int, error)
getApisFunc func(ctx context.Context, params repositories.ApisQueryParams) ([]repositories.ApiRow, int, error)
}
func (s *statisticsAdoptionRepoStub) GetSummary(ctx context.Context, params repositories.AdoptionQueryParams) (repositories.SummaryResult, int, error) {
if s.getSummaryFunc != nil {
return s.getSummaryFunc(ctx, params)
}
return repositories.SummaryResult{}, 0, nil
}
func (s *statisticsAdoptionRepoStub) GetRules(ctx context.Context, params repositories.AdoptionQueryParams) ([]repositories.RuleRow, int, error) {
return nil, 0, nil
}
func (s *statisticsAdoptionRepoStub) GetTimeline(ctx context.Context, params repositories.TimelineQueryParams) ([]repositories.TimelineRow, error) {
return nil, nil
}
func (s *statisticsAdoptionRepoStub) GetApis(ctx context.Context, params repositories.ApisQueryParams) ([]repositories.ApiRow, int, error) {
if s.getApisFunc != nil {
return s.getApisFunc(ctx, params)
}
return nil, 0, nil
}
func TestStatisticsControllerGetSummary_Success(t *testing.T) {
gin.SetMode(gin.TestMode)
repo := &statisticsAdoptionRepoStub{
getSummaryFunc: func(ctx context.Context, params repositories.AdoptionQueryParams) (repositories.SummaryResult, int, error) {
return repositories.SummaryResult{
TotalApis: 5,
CompliantApis: 4,
AdoptionRate: 80,
}, 11, nil
},
}
ctrl := NewStatisticsController(services.NewAdoptionService(repo))
w := httptest.NewRecorder()
ctx, _ := gin.CreateTestContext(w)
ctx.Request = httptest.NewRequest(http.MethodGet, "/v1/statistics/summary", nil)
out, err := ctrl.GetSummary(ctx, &models.AdoptionBaseParams{
AdrVersion: "ADR-2.0",
StartDate: "2026-01-01",
EndDate: "2026-01-31",
})
require.NoError(t, err)
require.NotNil(t, out)
assert.Equal(t, 5, out.TotalApis)
assert.Equal(t, 4, out.CompliantApis)
assert.Equal(t, 80.0, out.OverallAdoptionRate)
assert.Equal(t, 11, out.TotalLintRuns)
}
func TestStatisticsControllerGetApis_SetsPaginationHeaders(t *testing.T) {
gin.SetMode(gin.TestMode)
repo := &statisticsAdoptionRepoStub{
getApisFunc: func(ctx context.Context, params repositories.ApisQueryParams) ([]repositories.ApiRow, int, error) {
return []repositories.ApiRow{
{
ApiId: "api-1",
ApiTitle: "API 1",
Organisation: "Org",
IsCompliant: true,
TotalFailures: 0,
TotalWarnings: 1,
ViolatedRules: pq.StringArray{},
LastLintDate: time.Date(2026, 1, 10, 9, 0, 0, 0, time.UTC),
},
}, 3, nil
},
}
ctrl := NewStatisticsController(services.NewAdoptionService(repo))
w := httptest.NewRecorder()
ctx, _ := gin.CreateTestContext(w)
req := httptest.NewRequest(http.MethodGet, "http://api.example.test/v1/statistics/apis?page=2&perPage=1", nil)
req.Host = "api.example.test"
ctx.Request = req
out, err := ctrl.GetApis(ctx, &models.AdoptionApisParams{
AdoptionBaseParams: models.AdoptionBaseParams{AdrVersion: "ADR-2.0", StartDate: "2026-01-01", EndDate: "2026-01-31"},
Page: 2,
PerPage: 1,
})
require.NoError(t, err)
require.NotNil(t, out)
require.Len(t, out.Apis, 1)
assert.Equal(t, "3", w.Header().Get("Total-Count"))
assert.Equal(t, "3", w.Header().Get("Total-Pages"))
assert.Equal(t, "1", w.Header().Get("Per-Page"))
assert.Equal(t, "2", w.Header().Get("Current-Page"))
assert.Contains(t, w.Header().Get("Link"), `rel="prev"`)
assert.Contains(t, w.Header().Get("Link"), `rel="next"`)
assert.Contains(t, w.Header().Get("Link"), `page=2`)
}
func TestStatisticsControllerGetApis_PropagatesErrorWithoutHeaders(t *testing.T) {
gin.SetMode(gin.TestMode)
repo := &statisticsAdoptionRepoStub{
getApisFunc: func(ctx context.Context, params repositories.ApisQueryParams) ([]repositories.ApiRow, int, error) {
return nil, 0, errors.New("query failed")
},
}
ctrl := NewStatisticsController(services.NewAdoptionService(repo))
w := httptest.NewRecorder()
ctx, _ := gin.CreateTestContext(w)
ctx.Request = httptest.NewRequest(http.MethodGet, "/v1/statistics/apis", nil)
out, err := ctrl.GetApis(ctx, &models.AdoptionApisParams{
AdoptionBaseParams: models.AdoptionBaseParams{AdrVersion: "ADR-2.0", StartDate: "2026-01-01", EndDate: "2026-01-31"},
})
require.Error(t, err)
assert.Nil(t, out)
assert.Contains(t, err.Error(), "query failed")
assert.Empty(t, w.Header().Get("Total-Count"))
assert.Empty(t, w.Header().Get("Link"))
}