Grafana

//go:build integration package tools import ( "testing" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) func TestLokiTools(t *testing.T) { t.Run("list loki label names", func(t *testing.T) { ctx := newTestContext() result, err := listLokiLabelNames(ctx, ListLokiLabelNamesParams{ DatasourceUID: "loki", }) require.NoError(t, err) assert.Len(t, result, 3) }) t.Run("get loki label values", func(t *testing.T) { ctx := newTestContext() result, err := listLokiLabelValues(ctx, ListLokiLabelValuesParams{ DatasourceUID: "loki", LabelName: "container", }) require.NoError(t, err) assert.NotEmpty(t, result, "Should have at least one container label value") }) t.Run("query loki stats", func(t *testing.T) { ctx := newTestContext() result, err := queryLokiStats(ctx, QueryLokiStatsParams{ DatasourceUID: "loki", LogQL: `{container="grafana"}`, }) require.NoError(t, err) assert.NotNil(t, result, "Should return a result") // We can't assert on specific values as they will vary, // but we can check that the structure is correct assert.GreaterOrEqual(t, result.Streams, 0, "Should have a valid streams count") assert.GreaterOrEqual(t, result.Chunks, 0, "Should have a valid chunks count") assert.GreaterOrEqual(t, result.Entries, 0, "Should have a valid entries count") assert.GreaterOrEqual(t, result.Bytes, 0, "Should have a valid bytes count") }) t.Run("query loki logs", func(t *testing.T) { ctx := newTestContext() result, err := queryLokiLogs(ctx, QueryLokiLogsParams{ DatasourceUID: "loki", LogQL: `{container=~".+"}`, Limit: 10, }) require.NoError(t, err) // We can't assert on specific log content as it will vary, // but we can check that the structure is correct // If we got logs, check that they have the expected structure for _, entry := range result { assert.NotEmpty(t, entry.Timestamp, "Log entry should have a timestamp") assert.NotNil(t, entry.Labels, "Log entry should have labels") } }) t.Run("query loki logs with no results", func(t *testing.T) { ctx := newTestContext() // Use a query that's unlikely to match any logs result, err := queryLokiLogs(ctx, QueryLokiLogsParams{ DatasourceUID: "loki", LogQL: `{container="non-existent-container-name-123456789"}`, Limit: 10, }) require.NoError(t, err) // Should return an empty slice, not nil assert.NotNil(t, result, "Empty results should be an empty slice, not nil") assert.Equal(t, 0, len(result), "Empty results should have length 0") }) }