grafana/pkg/tsdb/cloudwatch/metric_data_query_builder_test.go

334 lines
11 KiB
Go

package cloudwatch
import (
"testing"
"github.com/grafana/grafana/pkg/services/featuremgmt"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestMetricDataQueryBuilder(t *testing.T) {
t.Run("buildMetricDataQuery", func(t *testing.T) {
t.Run("should use metric stat", func(t *testing.T) {
executor := newExecutor(nil, newTestConfig(), &fakeSessionCache{}, featuremgmt.WithFeatures())
query := getBaseQuery()
query.MetricEditorMode = MetricEditorModeBuilder
query.MetricQueryType = MetricQueryTypeSearch
mdq, err := executor.buildMetricDataQuery(query)
require.NoError(t, err)
require.Empty(t, mdq.Expression)
assert.Equal(t, query.MetricName, *mdq.MetricStat.Metric.MetricName)
assert.Equal(t, query.Namespace, *mdq.MetricStat.Metric.Namespace)
})
t.Run("should use custom built expression", func(t *testing.T) {
executor := newExecutor(nil, newTestConfig(), &fakeSessionCache{}, featuremgmt.WithFeatures())
query := getBaseQuery()
query.MetricEditorMode = MetricEditorModeBuilder
query.MetricQueryType = MetricQueryTypeSearch
query.MatchExact = false
mdq, err := executor.buildMetricDataQuery(query)
require.NoError(t, err)
require.Nil(t, mdq.MetricStat)
assert.Equal(t, `REMOVE_EMPTY(SEARCH('Namespace="AWS/EC2" MetricName="CPUUtilization" "LoadBalancer"="lb1"', '', 300))`, *mdq.Expression)
})
t.Run("should use sql expression", func(t *testing.T) {
executor := newExecutor(nil, newTestConfig(), &fakeSessionCache{}, featuremgmt.WithFeatures())
query := getBaseQuery()
query.MetricEditorMode = MetricEditorModeRaw
query.MetricQueryType = MetricQueryTypeQuery
query.SqlExpression = `SELECT SUM(CPUUTilization) FROM "AWS/EC2"`
mdq, err := executor.buildMetricDataQuery(query)
require.NoError(t, err)
require.Nil(t, mdq.MetricStat)
assert.Equal(t, query.SqlExpression, *mdq.Expression)
})
t.Run("should use user defined math expression", func(t *testing.T) {
executor := newExecutor(nil, newTestConfig(), &fakeSessionCache{}, featuremgmt.WithFeatures())
query := getBaseQuery()
query.MetricEditorMode = MetricEditorModeRaw
query.MetricQueryType = MetricQueryTypeSearch
query.Expression = `SUM(x+y)`
mdq, err := executor.buildMetricDataQuery(query)
require.NoError(t, err)
require.Nil(t, mdq.MetricStat)
assert.Equal(t, query.Expression, *mdq.Expression)
})
t.Run("should set period in user defined expression", func(t *testing.T) {
executor := newExecutor(nil, newTestConfig(), &fakeSessionCache{}, featuremgmt.WithFeatures())
query := getBaseQuery()
query.MetricEditorMode = MetricEditorModeRaw
query.MetricQueryType = MetricQueryTypeSearch
query.MatchExact = false
query.Expression = `SUM([a,b])`
mdq, err := executor.buildMetricDataQuery(query)
require.NoError(t, err)
require.Nil(t, mdq.MetricStat)
assert.Equal(t, int64(300), *mdq.Period)
assert.Equal(t, `SUM([a,b])`, *mdq.Expression)
})
t.Run("should set label when dynamic labels feature toggle is enabled", func(t *testing.T) {
executor := newExecutor(nil, newTestConfig(), &fakeSessionCache{}, featuremgmt.WithFeatures(featuremgmt.FlagCloudWatchDynamicLabels))
query := getBaseQuery()
query.Label = "some label"
mdq, err := executor.buildMetricDataQuery(query)
assert.NoError(t, err)
require.NotNil(t, mdq.Label)
assert.Equal(t, "some label", *mdq.Label)
})
testCases := map[string]struct {
feature *featuremgmt.FeatureManager
label string
}{
"should not set label when dynamic labels feature toggle is disabled": {
feature: featuremgmt.WithFeatures(),
label: "some label",
},
"should not set label for empty string query label": {
feature: featuremgmt.WithFeatures(featuremgmt.FlagCloudWatchDynamicLabels),
label: "",
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
executor := newExecutor(nil, newTestConfig(), &fakeSessionCache{}, tc.feature)
query := getBaseQuery()
query.Label = tc.label
mdq, err := executor.buildMetricDataQuery(query)
assert.NoError(t, err)
assert.Nil(t, mdq.Label)
})
}
})
t.Run("Query should be matched exact", func(t *testing.T) {
const matchExact = true
t.Run("Query has three dimension values for a given dimension key", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "AWS/EC2",
MetricName: "CPUUtilization",
Dimensions: map[string][]string{
"LoadBalancer": {"lb1", "lb2", "lb3"},
},
Period: 300,
Expression: "",
MatchExact: matchExact,
}
res := buildSearchExpression(query, "Average")
assert.Equal(t, `REMOVE_EMPTY(SEARCH('{"AWS/EC2","LoadBalancer"} MetricName="CPUUtilization" "LoadBalancer"=("lb1" OR "lb2" OR "lb3")', 'Average', 300))`, res)
})
t.Run("Query has three dimension values for two given dimension keys", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "AWS/EC2",
MetricName: "CPUUtilization",
Dimensions: map[string][]string{
"LoadBalancer": {"lb1", "lb2", "lb3"},
"InstanceId": {"i-123", "i-456", "i-789"},
},
Period: 300,
Expression: "",
MatchExact: matchExact,
}
res := buildSearchExpression(query, "Average")
assert.Equal(t, `REMOVE_EMPTY(SEARCH('{"AWS/EC2","InstanceId","LoadBalancer"} MetricName="CPUUtilization" "InstanceId"=("i-123" OR "i-456" OR "i-789") "LoadBalancer"=("lb1" OR "lb2" OR "lb3")', 'Average', 300))`, res)
})
t.Run("No OR operator was added if a star was used for dimension value", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "AWS/EC2",
MetricName: "CPUUtilization",
Dimensions: map[string][]string{
"LoadBalancer": {"*"},
},
Period: 300,
Expression: "",
MatchExact: matchExact,
}
res := buildSearchExpression(query, "Average")
assert.NotContains(t, res, "OR")
})
t.Run("Query has one dimension key with a * value", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "AWS/EC2",
MetricName: "CPUUtilization",
Dimensions: map[string][]string{
"LoadBalancer": {"*"},
},
Period: 300,
Expression: "",
MatchExact: matchExact,
}
res := buildSearchExpression(query, "Average")
assert.Equal(t, `REMOVE_EMPTY(SEARCH('{"AWS/EC2","LoadBalancer"} MetricName="CPUUtilization"', 'Average', 300))`, res)
})
t.Run("Query has three dimension values for two given dimension keys, and one value is a star", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "AWS/EC2",
MetricName: "CPUUtilization",
Dimensions: map[string][]string{
"LoadBalancer": {"lb1", "lb2", "lb3"},
"InstanceId": {"i-123", "*", "i-789"},
},
Period: 300,
Expression: "",
MatchExact: matchExact,
}
res := buildSearchExpression(query, "Average")
assert.Equal(t, `REMOVE_EMPTY(SEARCH('{"AWS/EC2","InstanceId","LoadBalancer"} MetricName="CPUUtilization" "LoadBalancer"=("lb1" OR "lb2" OR "lb3")', 'Average', 300))`, res)
})
t.Run("Query has a dimension key with a space", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "AWS/Kafka",
MetricName: "CpuUser",
Dimensions: map[string][]string{
"Cluster Name": {"dev-cluster"},
},
Period: 300,
Expression: "",
MatchExact: matchExact,
}
res := buildSearchExpression(query, "Average")
assert.Equal(t, `REMOVE_EMPTY(SEARCH('{"AWS/Kafka","Cluster Name"} MetricName="CpuUser" "Cluster Name"="dev-cluster"', 'Average', 300))`, res)
})
t.Run("Query has a custom namespace contains spaces", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "Test-API Cache by Minute",
MetricName: "CpuUser",
Dimensions: map[string][]string{
"LoadBalancer": {"lb1", "lb2", "lb3"},
"InstanceId": {"i-123", "*", "i-789"},
},
Period: 300,
Expression: "",
MatchExact: matchExact,
}
res := buildSearchExpression(query, "Average")
assert.Equal(t, `REMOVE_EMPTY(SEARCH('{"Test-API Cache by Minute","InstanceId","LoadBalancer"} MetricName="CpuUser" "LoadBalancer"=("lb1" OR "lb2" OR "lb3")', 'Average', 300))`, res)
})
})
t.Run("Query should not be matched exact", func(t *testing.T) {
const matchExact = false
t.Run("Query has three dimension values for a given dimension key", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "AWS/EC2",
MetricName: "CPUUtilization",
Dimensions: map[string][]string{
"LoadBalancer": {"lb1", "lb2", "lb3"},
},
Period: 300,
Expression: "",
MatchExact: matchExact,
}
res := buildSearchExpression(query, "Average")
assert.Equal(t, `REMOVE_EMPTY(SEARCH('Namespace="AWS/EC2" MetricName="CPUUtilization" "LoadBalancer"=("lb1" OR "lb2" OR "lb3")', 'Average', 300))`, res)
})
t.Run("Query has three dimension values for two given dimension keys", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "AWS/EC2",
MetricName: "CPUUtilization",
Dimensions: map[string][]string{
"LoadBalancer": {"lb1", "lb2", "lb3"},
"InstanceId": {"i-123", "i-456", "i-789"},
},
Period: 300,
Expression: "",
MatchExact: matchExact,
}
res := buildSearchExpression(query, "Average")
assert.Equal(t, `REMOVE_EMPTY(SEARCH('Namespace="AWS/EC2" MetricName="CPUUtilization" "InstanceId"=("i-123" OR "i-456" OR "i-789") "LoadBalancer"=("lb1" OR "lb2" OR "lb3")', 'Average', 300))`, res)
})
t.Run("Query has one dimension key with a * value", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "AWS/EC2",
MetricName: "CPUUtilization",
Dimensions: map[string][]string{
"LoadBalancer": {"*"},
},
Period: 300,
Expression: "",
MatchExact: matchExact,
}
res := buildSearchExpression(query, "Average")
assert.Equal(t, `REMOVE_EMPTY(SEARCH('Namespace="AWS/EC2" MetricName="CPUUtilization" "LoadBalancer"', 'Average', 300))`, res)
})
t.Run("query has three dimension values for two given dimension keys, and one value is a star", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "AWS/EC2",
MetricName: "CPUUtilization",
Dimensions: map[string][]string{
"LoadBalancer": {"lb1", "lb2", "lb3"},
"InstanceId": {"i-123", "*", "i-789"},
},
Period: 300,
Expression: "",
MatchExact: matchExact,
}
res := buildSearchExpression(query, "Average")
assert.Equal(t, `REMOVE_EMPTY(SEARCH('Namespace="AWS/EC2" MetricName="CPUUtilization" "LoadBalancer"=("lb1" OR "lb2" OR "lb3") "InstanceId"', 'Average', 300))`, res)
})
})
t.Run("Query has invalid characters in dimension values", func(t *testing.T) {
query := &cloudWatchQuery{
Namespace: "AWS/EC2",
MetricName: "CPUUtilization",
Dimensions: map[string][]string{
"lb4": {`lb4""`},
},
Period: 300,
Expression: "",
MatchExact: true,
}
res := buildSearchExpression(query, "Average")
assert.Contains(t, res, `lb4\"\"`, "Expected escape double quotes")
})
}
func getBaseQuery() *cloudWatchQuery {
query := &cloudWatchQuery{
Namespace: "AWS/EC2",
MetricName: "CPUUtilization",
Dimensions: map[string][]string{
"LoadBalancer": {"lb1"},
},
Period: 300,
Expression: "",
MatchExact: true,
}
return query
}