add schemaz unit test

go/vt/tabletserver/queryctl.go

@@ -391,6 +391,12 @@ func (rqsc *realQueryServiceControl) registerStreamQueryzHandlers() {
 	})
 }
 
+func (rqsc *realQueryServiceControl) registerSchemazHandler() {
+	http.HandleFunc("/schemaz", func(w http.ResponseWriter, r *http.Request) {
+		schemazHandler(rqsc.sqlQueryRPCService.qe.schemaInfo.GetSchema(), w, r)
+	})
+}
+
 func buildFmter(logger *streamlog.StreamLogger) func(url.Values, interface{}) string {
 	type formatter interface {
 		Format(url.Values) string

go/vt/tabletserver/schemaz.go

@@ -50,37 +50,34 @@ func (sorter *schemazSorter) Less(i, j int) bool {
 	return sorter.less(sorter.rows[i], sorter.rows[j])
 }
 
-func (rqsc *realQueryServiceControl) registerSchemazHandler() {
-	http.HandleFunc("/schemaz", func(w http.ResponseWriter, r *http.Request) {
-		if err := acl.CheckAccessHTTP(r, acl.DEBUGGING); err != nil {
-			acl.SendError(w, err)
-			return
-		}
-		startHTMLTable(w)
-		defer endHTMLTable(w)
-		w.Write(schemazHeader)
+func schemazHandler(tables []*schema.Table, w http.ResponseWriter, r *http.Request) {
+	if err := acl.CheckAccessHTTP(r, acl.DEBUGGING); err != nil {
+		acl.SendError(w, err)
+		return
+	}
+	startHTMLTable(w)
+	defer endHTMLTable(w)
+	w.Write(schemazHeader)
 
-		tables := rqsc.sqlQueryRPCService.qe.schemaInfo.GetSchema()
-		sorter := schemazSorter{
-			rows: tables,
-			less: func(row1, row2 *schema.Table) bool {
-				return row1.Name > row2.Name
-			},
+	sorter := schemazSorter{
+		rows: tables,
+		less: func(row1, row2 *schema.Table) bool {
+			return row1.Name > row2.Name
+		},
+	}
+	sort.Sort(&sorter)
+	envelope := struct {
+		ColumnCategory []string
+		CacheType      []string
+		Table          *schema.Table
+	}{
+		ColumnCategory: []string{"other", "number", "varbinary"},
+		CacheType:      []string{"none", "read-write", "write-only"},
+	}
+	for _, Value := range sorter.rows {
+		envelope.Table = Value
+		if err := schemazTmpl.Execute(w, envelope); err != nil {
+			log.Errorf("schemaz: couldn't execute template: %v", err)
 		}
-		sort.Sort(&sorter)
-		envelope := struct {
-			ColumnCategory []string
-			CacheType      []string
-			Table          *schema.Table
-		}{
-			ColumnCategory: []string{"other", "number", "varbinary"},
-			CacheType:      []string{"none", "read-write", "write-only"},
-		}
-		for _, Value := range sorter.rows {
-			envelope.Table = Value
-			if err := schemazTmpl.Execute(w, envelope); err != nil {
-				log.Errorf("schemaz: couldn't execute template: %v", err)
-			}
-		}
-	})
+	}
 }

go/vt/tabletserver/schemaz_test.go

@@ -0,0 +1,82 @@
+// Copyright 2015, Google Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package tabletserver
+
+import (
+	"io/ioutil"
+	"net/http"
+	"net/http/httptest"
+	"regexp"
+	"strings"
+	"testing"
+
+	"github.com/youtube/vitess/go/sqltypes"
+	"github.com/youtube/vitess/go/vt/schema"
+)
+
+func TestSchamazHandler(t *testing.T) {
+	resp := httptest.NewRecorder()
+	req, _ := http.NewRequest("GET", "/schemaz", nil)
+	tableA := schema.NewTable("a")
+	tableB := schema.NewTable("b")
+	tableC := schema.NewTable("c")
+
+	tableA.AddColumn("column1", "int", sqltypes.MakeNumeric([]byte("0")), "auto_increment")
+	tableA.AddIndex("index1").AddColumn("index_column", 1000)
+	tableA.CacheType = schema.CACHE_RW
+
+	tableB.AddColumn("column2", "string", sqltypes.MakeString([]byte("NULL")), "")
+	tableB.AddIndex("index2").AddColumn("index_column2", 200)
+	tableB.CacheType = schema.CACHE_W
+
+	tableC.AddColumn("column3", "string", sqltypes.MakeString([]byte("")), "")
+	tableC.AddIndex("index3").AddColumn("index_column3", 500)
+	tableC.CacheType = schema.CACHE_NONE
+
+	tables := []*schema.Table{
+		tableA, tableB, tableC,
+	}
+	schemazHandler(tables, resp, req)
+	body, _ := ioutil.ReadAll(resp.Body)
+	tableCPattern := []string{
+		`<td>c</td>`,
+		`<td>column3: other, , <br></td>`,
+		`<td>index3: \(index_column3,\), \(500,\)<br></td>`,
+		`<td>none</td>`,
+	}
+	matched, err := regexp.Match(strings.Join(tableCPattern, `\s*`), body)
+	if err != nil {
+		t.Fatalf("schemaz page does not contain table C with error: %v", err)
+	}
+	if !matched {
+		t.Fatalf("schemaz page does not contain table C")
+	}
+	tableBPattern := []string{
+		`<td>b</td>`,
+		`<td>column2: other, , NULL<br></td>`,
+		`<td>index2: \(index_column2,\), \(200,\)<br></td>`,
+		`<td>write-only</td>`,
+	}
+	matched, err = regexp.Match(strings.Join(tableBPattern, `\s*`), body)
+	if err != nil {
+		t.Fatalf("schemaz page does not contain table B with error: %v", err)
+	}
+	if !matched {
+		t.Fatalf("schemaz page does not contain table B")
+	}
+	tableAPattern := []string{
+		`<td>a</td>`,
+		`<td>column1: number, autoinc, <br></td>`,
+		`<td>index1: \(index_column,\), \(1000,\)<br></td>`,
+		`<td>read-write</td>`,
+	}
+	matched, err = regexp.Match(strings.Join(tableAPattern, `\s*`), body)
+	if err != nil {
+		t.Fatalf("schemaz page does not contain table A with error: %v", err)
+	}
+	if !matched {
+		t.Fatalf("schemaz page does not contain table A")
+	}
+}