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|
package mapr
import (
"strings"
"testing"
)
func TestGroupSetResultUsesProvidedRenderer(t *testing.T) {
query, err := NewQuery("select host,count(value) from stats group by host order by count(value)")
if err != nil {
t.Fatalf("Unable to parse query: %v", err)
}
groupSet := NewGroupSet()
set := groupSet.GetSet("host-a")
if err := set.Aggregate("host", Last, "host-a", false); err != nil {
t.Fatalf("Unable to aggregate host field: %v", err)
}
if err := set.Aggregate("count(value)", Count, "", false); err != nil {
t.Fatalf("Unable to aggregate count field: %v", err)
}
renderer := &recordingRenderer{}
result, numRows, err := groupSet.Result(query, 10, renderer)
if err != nil {
t.Fatalf("Unable to render result: %v", err)
}
if numRows != 1 {
t.Fatalf("Expected one row, got %d", numRows)
}
if len(renderer.headerCalls) != 2 {
t.Fatalf("Expected two header calls, got %d", len(renderer.headerCalls))
}
if renderer.headerCalls[0].isSortKey || !renderer.headerCalls[0].isGroupKey {
t.Fatalf("Unexpected flags for group key header: %+v", renderer.headerCalls[0])
}
if !renderer.headerCalls[1].isSortKey || renderer.headerCalls[1].isGroupKey {
t.Fatalf("Unexpected flags for sort key header: %+v", renderer.headerCalls[1])
}
if len(renderer.headerDelimiters) == 0 {
t.Fatal("Expected header delimiters to be rendered")
}
if len(renderer.dataDelimiters) == 0 {
t.Fatal("Expected data delimiters to be rendered")
}
if !strings.Contains(result, "host-a") || !strings.Contains(result, "1") {
t.Fatalf("Expected rendered output to contain row data, got %q", result)
}
}
func TestGroupSetResultFallsBackToPlainRenderer(t *testing.T) {
query, err := NewQuery("select count(value) from stats")
if err != nil {
t.Fatalf("Unable to parse query: %v", err)
}
groupSet := NewGroupSet()
set := groupSet.GetSet("")
if err := set.Aggregate("count(value)", Count, "", false); err != nil {
t.Fatalf("Unable to aggregate count field: %v", err)
}
result, numRows, err := groupSet.Result(query, 10, nil)
if err != nil {
t.Fatalf("Unable to render result with nil renderer: %v", err)
}
if numRows != 1 {
t.Fatalf("Expected one row, got %d", numRows)
}
if !strings.Contains(result, "count(value)") || !strings.Contains(result, "1") {
t.Fatalf("Expected plain rendered output, got %q", result)
}
if strings.Contains(result, "\x1b[") {
t.Fatalf("Expected plain output without ANSI escapes, got %q", result)
}
}
type recordingRenderer struct {
headerCalls []headerCall
headerDelimiters []string
dataEntries []string
dataDelimiters []string
}
type headerCall struct {
text string
isSortKey bool
isGroupKey bool
}
func (r *recordingRenderer) WriteHeaderEntry(sb *strings.Builder, text string, isSortKey, isGroupKey bool) {
r.headerCalls = append(r.headerCalls, headerCall{
text: text,
isSortKey: isSortKey,
isGroupKey: isGroupKey,
})
sb.WriteString(text)
}
func (r *recordingRenderer) WriteHeaderDelimiter(sb *strings.Builder, text string) {
r.headerDelimiters = append(r.headerDelimiters, text)
sb.WriteString(text)
}
func (r *recordingRenderer) WriteDataEntry(sb *strings.Builder, text string) {
r.dataEntries = append(r.dataEntries, text)
sb.WriteString(text)
}
func (r *recordingRenderer) WriteDataDelimiter(sb *strings.Builder, text string) {
r.dataDelimiters = append(r.dataDelimiters, text)
sb.WriteString(text)
}
|
