linkerd2/cli/cmd/edges_test.go

123 lines
3.5 KiB
Go

package cmd
import (
"testing"
"github.com/linkerd/linkerd2/controller/api/public"
)
type edgesParamsExp struct {
options *edgesOptions
resourceType string
file string
}
func TestEdges(t *testing.T) {
options := newEdgesOptions()
options.outputFormat = tableOutput
options.allNamespaces = true
t.Run("Returns edges", func(t *testing.T) {
testEdgesCall(edgesParamsExp{
options: options,
resourceType: "deployment",
file: "edges_one_output.golden",
}, t)
})
options.outputFormat = jsonOutput
t.Run("Returns edges (json)", func(t *testing.T) {
testEdgesCall(edgesParamsExp{
options: options,
resourceType: "deployment",
file: "edges_one_output_json.golden",
}, t)
})
t.Run("Returns edges (wide)", func(t *testing.T) {
options.outputFormat = wideOutput
testEdgesCall(edgesParamsExp{
options: options,
resourceType: "deployment",
file: "edges_wide_output.golden",
}, t)
})
t.Run("Returns an error if outputFormat specified is not wide, table or json", func(t *testing.T) {
options.outputFormat = "test"
args := []string{"deployment"}
expectedError := "--output supports table, json and wide"
_, err := buildEdgesRequests(args, options)
if err == nil || err.Error() != expectedError {
t.Fatalf("Expected error [%s] instead got [%s]", expectedError, err)
}
})
t.Run("Returns an error if request includes the resource name", func(t *testing.T) {
options.outputFormat = tableOutput
args := []string{"pod/pod-name"}
expectedError := "Edges cannot be returned for a specific resource name; remove pod-name from query"
_, err := buildEdgesRequests(args, options)
if err == nil || err.Error() != expectedError {
t.Fatalf("Expected error [%s] instead got [%s]", expectedError, err)
}
})
t.Run("Returns an error if request is for authority", func(t *testing.T) {
options.outputFormat = tableOutput
args := []string{"authority"}
expectedError := "Resource type is not supported: authority"
_, err := buildEdgesRequests(args, options)
if err == nil || err.Error() != expectedError {
t.Fatalf("Expected error [%s] instead got [%s]", expectedError, err)
}
})
t.Run("Returns an error if request is for service", func(t *testing.T) {
options.outputFormat = tableOutput
args := []string{"service"}
expectedError := "Resource type is not supported: service"
_, err := buildEdgesRequests(args, options)
if err == nil || err.Error() != expectedError {
t.Fatalf("Expected error [%s] instead got [%s]", expectedError, err)
}
})
t.Run("Returns an error if request is for all resource types", func(t *testing.T) {
options.outputFormat = tableOutput
args := []string{"all"}
expectedError := "Resource type is not supported: all"
_, err := buildEdgesRequests(args, options)
if err == nil || err.Error() != expectedError {
t.Fatalf("Expected error [%s] instead got [%s]", expectedError, err)
}
})
}
func testEdgesCall(exp edgesParamsExp, t *testing.T) {
mockClient := &public.MockAPIClient{}
response := public.GenEdgesResponse(exp.resourceType, "all")
mockClient.EdgesResponseToReturn = &response
args := []string{"deployment"}
reqs, err := buildEdgesRequests(args, exp.options)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
resp, err := requestEdgesFromAPI(mockClient, reqs[0])
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
rows := edgesRespToRows(resp)
output := renderEdgeStats(rows, exp.options)
diffTestdata(t, exp.file, output)
}