windows_exporter/collector/wmi_test.go

116 lines
3.0 KiB
Go

package collector
import (
"testing"
)
type fakeWmiClass struct {
Name string
SomeProperty int
}
var (
mapQueryAll = func(src interface{}, class string, where string) string {
return queryAll(src)
}
mapQueryAllWhere = func(src interface{}, class string, where string) string {
return queryAllWhere(src, where)
}
mapQueryAllForClass = func(src interface{}, class string, where string) string {
return queryAllForClass(src, class)
}
mapQueryAllForClassWhere = func(src interface{}, class string, where string) string {
return queryAllForClassWhere(src, class, where)
}
)
type queryFunc func(src interface{}, class string, where string) string
func TestCreateQuery(t *testing.T) {
cases := []struct {
desc string
dst interface{}
class string
where string
queryFunc queryFunc
expected string
}{
{
desc: "queryAll on single instance",
dst: fakeWmiClass{},
queryFunc: mapQueryAll,
expected: "SELECT * FROM fakeWmiClass",
},
{
desc: "queryAll on slice",
dst: []fakeWmiClass{},
queryFunc: mapQueryAll,
expected: "SELECT * FROM fakeWmiClass",
},
{
desc: "queryAllWhere on single instance",
dst: fakeWmiClass{},
where: "foo = bar",
queryFunc: mapQueryAllWhere,
expected: "SELECT * FROM fakeWmiClass WHERE foo = bar",
},
{
desc: "queryAllWhere on slice",
dst: []fakeWmiClass{},
where: "foo = bar",
queryFunc: mapQueryAllWhere,
expected: "SELECT * FROM fakeWmiClass WHERE foo = bar",
},
{
desc: "queryAllWhere on single instance with empty where",
dst: fakeWmiClass{},
queryFunc: mapQueryAllWhere,
expected: "SELECT * FROM fakeWmiClass",
},
{
desc: "queryAllForClass on single instance",
dst: fakeWmiClass{},
class: "someClass",
queryFunc: mapQueryAllForClass,
expected: "SELECT * FROM someClass",
},
{
desc: "queryAllForClass on slice",
dst: []fakeWmiClass{},
class: "someClass",
queryFunc: mapQueryAllForClass,
expected: "SELECT * FROM someClass",
},
{
desc: "queryAllForClassWhere on single instance",
dst: fakeWmiClass{},
class: "someClass",
where: "foo = bar",
queryFunc: mapQueryAllForClassWhere,
expected: "SELECT * FROM someClass WHERE foo = bar",
},
{
desc: "queryAllForClassWhere on slice",
dst: []fakeWmiClass{},
class: "someClass",
where: "foo = bar",
queryFunc: mapQueryAllForClassWhere,
expected: "SELECT * FROM someClass WHERE foo = bar",
},
{
desc: "queryAllForClassWhere on single instance with empty where",
dst: fakeWmiClass{},
class: "someClass",
queryFunc: mapQueryAllForClassWhere,
expected: "SELECT * FROM someClass",
},
}
for _, c := range cases {
t.Run(c.desc, func(t *testing.T) {
if q := c.queryFunc(c.dst, c.class, c.where); q != c.expected {
t.Errorf("Case %q failed: Expected %q, got %q", c.desc, c.expected, q)
}
})
}
}