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Add more topk() / bottomk() tests. 

Test what happens if k > number of input elements.

Change-Id: Ie724b850939e297ebf085f0a5a3522e9cfcc6534
This commit is contained in:
Julius Volz 2014-08-05 20:14:04 +02:00
parent 200d02effe
commit f7cd18abdf
1 changed files with 20 additions and 2 deletions
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22
rules/rules_test.go
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@ -333,6 +333,15 @@ func TestExpressions(t *testing.T) {
checkOrder: true,
fullRanges: 0,
intervalRanges: 8,
}, {
expr: `topk(5, http_requests{group="canary",job="app-server"})`,
output: []string{
`http_requests{group="canary", instance="1", job="app-server"} => 800 @[%v]`,
`http_requests{group="canary", instance="0", job="app-server"} => 700 @[%v]`,
},
checkOrder: true,
fullRanges: 0,
intervalRanges: 2,
}, {
expr: `bottomk(3, http_requests)`,
output: []string{
@ -343,6 +352,15 @@ func TestExpressions(t *testing.T) {
checkOrder: true,
fullRanges: 0,
intervalRanges: 8,
}, {
expr: `bottomk(5, http_requests{group="canary",job="app-server"})`,
output: []string{
`http_requests{group="canary", instance="0", job="app-server"} => 700 @[%v]`,
`http_requests{group="canary", instance="1", job="app-server"} => 800 @[%v]`,
},
checkOrder: true,
fullRanges: 0,
intervalRanges: 2,
}, {
// Single-letter label names and values.
expr: `x{y="testvalue"}`,
@ -409,11 +427,11 @@ func TestExpressions(t *testing.T) {
fullRanges: 0,
intervalRanges: 0,
}, {
// Empty expressions shouldn"t parse.
// Empty expressions shouldn't parse.
expr: ``,
shouldFail: true,
}, {
// Interval durations can"t be in quotes.
// Interval durations can't be in quotes.
expr: `http_requests["1m"]`,
shouldFail: true,
}, {