// New returns snap-plugin-collector-iostat instance
func New() (*IOSTAT, error) {
iostat := &IOSTAT{
cmd: command.New(),
parser: parser.New(),
}
return iostat, nil
}
func TestIostat(t *testing.T) {
iostat := &IOSTAT{parser: parser.New(), cmd: &mockCmdRunner{}}
Convey("Given invalid metric namespace collect metrics", t, func() {
badMetrics := []plugin.PluginMetricType{
plugin.PluginMetricType{
Namespace_: []string{"intel", "linux", "iostat", "device", "sda", "bad"},
},
}
So(func() { iostat.CollectMetrics(badMetrics) }, ShouldNotPanic)
result, err := iostat.CollectMetrics(badMetrics)
So(len(result), ShouldEqual, len(badMetrics))
So(err, ShouldBeNil)
for _, r := range result {
So(r.Namespace(), ShouldBeEmpty)
So(r.Data(), ShouldBeNil)
So(r.Source(), ShouldBeEmpty)
}
})
Convey("Given valid metric namespace collect metrics", t, func() {
So(func() { iostat.CollectMetrics(mockMts) }, ShouldNotPanic)
result, err := iostat.CollectMetrics(mockMts)
So(len(result), ShouldEqual, len(mockMts))
So(err, ShouldBeNil)
So(result[0].Data(), ShouldEqual, 0)
So(result[1].Data(), ShouldEqual, 0)
So(result[2].Data(), ShouldEqual, 0)
So(result[3].Data(), ShouldEqual, 0.01)
So(result[4].Data(), ShouldEqual, 15.34)
})
Convey("Get metric types", t, func() {
mts, err := iostat.GetMetricTypes(plugin.PluginConfigType{})
So(err, ShouldBeNil)
So(len(mts), ShouldEqual, 123)
})
Convey("Get config policy", t, func() {
policy, err := iostat.GetConfigPolicy()
So(err, ShouldBeNil)
So(policy, ShouldResemble, cpolicy.New())
})
}
func TestIostat(t *testing.T) {
iostat := &IOSTAT{parser: parser.New(), cmd: &mockCmdRunner{}}
Convey("Given invalid metric namespace collect metrics", t, func() {
badMetrics := []plugin.MetricType{
plugin.MetricType{
Namespace_: core.NewNamespace("intel", "linux", "iostat", "device", "sda", "bad"),
},
}
So(func() { iostat.CollectMetrics(badMetrics) }, ShouldNotPanic)
result, err := iostat.CollectMetrics(badMetrics)
So(err, ShouldBeNil)
for _, r := range result {
So(r.Namespace(), ShouldBeEmpty)
So(r.Data(), ShouldBeNil)
}
})
Convey("Given valid static metric namespace collect metrics", t, func() {
So(func() { iostat.CollectMetrics(staticMockMts) }, ShouldNotPanic)
result, err := iostat.CollectMetrics(staticMockMts)
So(len(result), ShouldEqual, 6)
So(err, ShouldBeNil)
So(result[0].Data(), ShouldEqual, 0.50)
So(result[1].Data(), ShouldEqual, 0)
So(result[2].Data(), ShouldEqual, 0.13)
So(result[3].Data(), ShouldEqual, 0)
So(result[4].Data(), ShouldEqual, 0)
So(result[5].Data(), ShouldEqual, 99.37)
})
Convey("Given valid dynamic metric namespace collect metrics", t, func() {
So(func() { iostat.CollectMetrics(dynamicMockMts) }, ShouldNotPanic)
result, err := iostat.CollectMetrics(dynamicMockMts)
So(len(result), ShouldEqual, 72)
So(err, ShouldBeNil)
m := make(map[string]interface{}, len(result))
for _, r := range result {
m[r.Namespace().String()] = r.Data()
}
So(len(m), ShouldEqual, len(refMap))
for key, val := range refMap {
v, ok := m[key]
So(ok, ShouldBeTrue)
So(v, ShouldEqual, val)
}
for _, r := range result {
_, ok := r.Data_.(float64)
So(ok, ShouldBeTrue)
}
})
Convey("Get metric types", t, func() {
mts, err := iostat.GetMetricTypes(plugin.ConfigType{})
So(err, ShouldBeNil)
So(len(mts), ShouldEqual, 19)
namespaces := []string{}
for _, m := range mts {
namespaces = append(namespaces, m.Namespace().String())
}
So(namespaces, ShouldContain, "/intel/linux/iostat/avg-cpu/%idle")
So(namespaces, ShouldContain, "/intel/linux/iostat/avg-cpu/%iowait")
So(namespaces, ShouldContain, "/intel/linux/iostat/avg-cpu/%nice")
So(namespaces, ShouldContain, "/intel/linux/iostat/avg-cpu/%steal")
So(namespaces, ShouldContain, "/intel/linux/iostat/avg-cpu/%system")
So(namespaces, ShouldContain, "/intel/linux/iostat/avg-cpu/%user")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/%util")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/avgqu-sz")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/avgrq-sz")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/await")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/r_await")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/r_per_sec")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/rkB_per_sec")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/rrqm_per_sec")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/svctm")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/w_await")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/w_per_sec")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/wkB_per_sec")
So(namespaces, ShouldContain, "/intel/linux/iostat/device/*/wrqm_per_sec")
})
Convey("Get config policy", t, func() {
policy, err := iostat.GetConfigPolicy()
So(err, ShouldBeNil)
So(policy, ShouldResemble, cpolicy.New())
})
}