Add unit tests for pipeline approve functions

Signed-off-by: rick <rick@jenkins-zh.cn>

pkg/simple/client/devops/pipeline_test.go

@@ -0,0 +1,34 @@
+package devops
+
+import (
+	"gotest.tools/assert"
+	"testing"
+)
+
+func TestGetSubmitters(t *testing.T) {
+	input := &Input{}
+	assert.Equal(t, len(input.GetSubmitters()), 0,
+		"errors happen when try to get submitters without any submitters")
+
+	input.Submitter = "a , b, c,d"
+	submitters := input.GetSubmitters()
+	assert.Equal(t, len(submitters), 4, "get incorrect number of submitters")
+	assert.DeepEqual(t, submitters, []string{"a", "b", "c", "d"})
+}
+
+func TestApprovable(t *testing.T) {
+	input := &Input{}
+
+	assert.Equal(t, input.Approvable(""), true, "should allow anyone to approve it if there's no submitter given")
+	assert.Equal(t, input.Approvable("fake"), true, "should allow anyone to approve it if there's no submitter given")
+
+	input.Submitter = "fake"
+	assert.Equal(t, input.Approvable(""), false, "should not approve by nobody if there's a particular submitter")
+	assert.Equal(t, input.Approvable("rick"), false, "should not approve by who is not the specific one")
+	assert.Equal(t, input.Approvable("fake"), true, "should be approvable")
+
+	input.Submitter = "fake, good ,bad"
+	assert.Equal(t, input.Approvable("fake"), true, "should be approvable")
+	assert.Equal(t, input.Approvable("good"), true, "should be approvable")
+	assert.Equal(t, input.Approvable("bad"), true, "should be approvable")
+}