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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,80 @@ | ||
package fixtures | ||
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import ( | ||
"fmt" | ||
|
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"github.com/atlassian/gostatsd" | ||
) | ||
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type MetricOpt func(m *gostatsd.Metric) | ||
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// MakeMetric provides a way to build a metric for tests. Hopefully over | ||
// time this will be used more, bringing more consistency to tests. | ||
func MakeMetric(opts ...MetricOpt) *gostatsd.Metric { | ||
m := &gostatsd.Metric{ | ||
Type: gostatsd.COUNTER, | ||
Name: "name", | ||
Rate: 1, | ||
Tags: gostatsd.Tags{ | ||
"foo:bar", | ||
"host:baz", | ||
}, | ||
Source: "baz", | ||
} | ||
for _, opt := range opts { | ||
opt(m) | ||
} | ||
return m | ||
} | ||
|
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func Name(n string) MetricOpt { | ||
return func(m *gostatsd.Metric) { | ||
m.Name = n | ||
} | ||
} | ||
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func AddTag(t ...string) MetricOpt { | ||
return func(m *gostatsd.Metric) { | ||
m.Tags = append(m.Tags, t...) | ||
} | ||
} | ||
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func DropSource(m *gostatsd.Metric) { | ||
m.Source = gostatsd.UnknownSource | ||
} | ||
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func DropTag(t string) MetricOpt { | ||
return func(m *gostatsd.Metric) { | ||
next := 0 | ||
found := false | ||
for _, tag := range m.Tags { | ||
if t == tag { | ||
found = true | ||
m.Tags[next] = tag | ||
next++ | ||
} | ||
} | ||
if !found { | ||
panic(fmt.Sprintf("failed to find tag %s while building metric", t)) | ||
} | ||
m.Tags = m.Tags[:next] | ||
} | ||
} | ||
|
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// SortCompare func for metrics so they can be compared with require.EqualValues | ||
// Invoke with sort.Slice(x, SortCompare(x)) | ||
func SortCompare(ms []*gostatsd.Metric) func(i, j int) bool { | ||
return func(i, j int) bool { | ||
if ms[i].Name == ms[j].Name { | ||
if len(ms[i].Tags) == len(ms[j].Tags) { // This is not exactly accurate, but close enough with our data | ||
if ms[i].Type == gostatsd.SET { | ||
return ms[i].StringValue < ms[j].StringValue | ||
} else { | ||
return ms[i].Value < ms[j].Value | ||
} | ||
} | ||
return len(ms[i].Tags) < len(ms[j].Tags) | ||
} | ||
return ms[i].Name < ms[j].Name | ||
} | ||
} |
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