diff --git a/build/version_test.go b/build/version_test.go
new file mode 100644
index 0000000..77bb2ee
--- /dev/null
+++ b/build/version_test.go
@@ -0,0 +1,30 @@
+package build
+
+import "testing"
+
+func TestInfo(t *testing.T) {
+	type args struct {
+		v string
+		m string
+		d string
+	}
+	tests := []struct {
+		name string
+		args args
+	}{
+		{
+			"info",
+			args{
+				v: "v0.1.0",
+				m: "commit",
+				d: "20190520",
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			Info(tt.args.v, tt.args.m, tt.args.d)
+			Print()
+		})
+	}
+}
diff --git a/cmd/jobs_test.go b/cmd/jobs_test.go
index 2f02163..af22473 100644
--- a/cmd/jobs_test.go
+++ b/cmd/jobs_test.go
@@ -18,6 +18,7 @@ func TestJOBs(t *testing.T) {
 	job2.Name = "two"
 	job2.Command.Shell.Name = "echo"
 	job2.Order.Weight = 2
+	job2.Order.Precondition = []string{"one"}
 
 	job3 := config.CommandJD()
 	job3.Name = "three"
diff --git a/config/config_test.go b/config/config_test.go
index e30b962..f1fd3f7 100644
--- a/config/config_test.go
+++ b/config/config_test.go
@@ -14,18 +14,54 @@ func TestCommandJD(t *testing.T) {
 	assert.NotNil(t, jd2)
 
 	opts := []Option{}
-	opts = append(opts, Name("name"))
-	opts = append(opts, Metadata("key", "val"))
-	opts = append(opts, CommandName("echo"))
-	opts = append(opts, CommandArgs("aa", "bb", "cc"))
-	opts = append(opts, CommandEnv("key", "val"))
-	opts = append(opts, CommandRetry(3))
-	opts = append(opts, CommandStdoutDiscard(true))
-	opts = append(opts, CommandTimeout(time.Second))
-	opts = append(opts, RepeatTimes(10))
-	opts = append(opts, RepeatInterval(time.Second))
-	opts = append(opts, Concurrent(10))
-	opts = append(opts, Crontab("* * * * *"))
+	opt := Name("name")
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
+	opt = Metadata("key", "val")
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
+	opt = CommandName("echo")
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
+	opt = CommandArgs("aa", "bb", "cc")
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
+	opt = CommandEnv("key", "val")
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
+	opt = CommandRetry(3)
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
+	opt = CommandStdoutDiscard(true)
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
+	opt = CommandTimeout(time.Second)
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
+	opt = RepeatTimes(10)
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
+	opt = RepeatInterval(time.Second)
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
+	opt = Concurrent(10)
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
+	opt = Crontab("* * * * *")
+	assert.NotNil(t, opt)
+	opts = append(opts, opt)
+
 	for _, opt := range opts {
 		opt(jd1)
 	}