added crons web apis and ui listing

tools/cron/job_test.go

@@ -1,6 +1,9 @@
 package cron
 
-import "testing"
+import (
+	"encoding/json"
+	"testing"
+)
 
 func TestJobId(t *testing.T) {
 	expected := "test"
@@ -22,8 +25,8 @@ func TestJobExpr(t *testing.T) {
 
 	j := Job{schedule: s}
 
-	if j.Expr() != expected {
-		t.Fatalf("Expected job with cron expression %q, got %q", expected, j.Expr())
+	if j.Expression() != expected {
+		t.Fatalf("Expected job with cron expression %q, got %q", expected, j.Expression())
 	}
 }
 
@@ -47,3 +50,22 @@ func TestJobRun(t *testing.T) {
 		t.Fatalf("Expected calls %q, got %q", expected, calls)
 	}
 }
+
+func TestJobMarshalJSON(t *testing.T) {
+	s, err := NewSchedule("1 2 3 4 5")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	j := Job{id: "test_id", schedule: s}
+
+	raw, err := json.Marshal(j)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	expected := `{"id":"test_id","expression":"1 2 3 4 5"}`
+	if str := string(raw); str != expected {
+		t.Fatalf("Expected\n%s\ngot\n%s", expected, str)
+	}
+}