linkerd2/pkg/k8s/k8s_test.go

116 lines
3.6 KiB
Go

package k8s
import (
"testing"
)
func TestGenerateKubernetesApiBaseUrlFor(t *testing.T) {
t.Run("Generates correct URL when all elements are present", func(t *testing.T) {
schemeHostAndPort := "ftp://some-server.example.com:666"
namespace := "some-namespace"
extraPath := "/starts/with/slash"
url, err := generateKubernetesApiBaseUrlFor(schemeHostAndPort, namespace, extraPath)
if err != nil {
t.Fatalf("Unexpected error starting proxy: %v", err)
}
expectedUrlString := "ftp://some-server.example.com:666/api/v1/namespaces/some-namespace/starts/with/slash"
if url.String() != expectedUrlString {
t.Fatalf("Expected generated URl to be [%s], but got [%s]", expectedUrlString, url.String())
}
})
t.Run("Return error if extra path doesn't start with slash", func(t *testing.T) {
schemeHostAndPort := "ftp://some-server.example.com:666"
namespace := "some-namespace"
extraPath := "does-not-start/with/slash"
_, err := generateKubernetesApiBaseUrlFor(schemeHostAndPort, namespace, extraPath)
if err == nil {
t.Fatalf("Expected error when tryiong to generate URL with extra path without leading slash, got nothing")
}
})
}
func TestGenerateBaseKubernetesApiUrl(t *testing.T) {
t.Run("Generates correct URL when all elements are present", func(t *testing.T) {
schemeHostAndPort := "gopher://some-server.example.com:661"
url, err := generateBaseKubernetesApiUrl(schemeHostAndPort)
if err != nil {
t.Fatalf("Unexpected error starting proxy: %v", err)
}
expectedUrlString := "gopher://some-server.example.com:661/api/v1/"
if url.String() != expectedUrlString {
t.Fatalf("Expected generated URl to be [%s], but got [%s]", expectedUrlString, url.String())
}
})
t.Run("Return error if invalid host and port", func(t *testing.T) {
schemeHostAndPort := "ftp://some-server.exampl e.com:666"
_, err := generateBaseKubernetesApiUrl(schemeHostAndPort)
if err == nil {
t.Fatalf("Expected error when tryiong to generate URL with extra path without leading slash, got nothing")
}
})
}
func TestGetConfig(t *testing.T) {
t.Run("Gets host correctly form existing file", func(t *testing.T) {
config, err := getConfig("testdata/config.test")
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
expectedHost := "https://55.197.171.239"
if config.Host != expectedHost {
t.Fatalf("Expected host to be [%s] got [%s]", expectedHost, config.Host)
}
})
t.Run("Returns error if configuration cannot be found", func(t *testing.T) {
_, err := getConfig("/this/doest./not/exist.config")
if err == nil {
t.Fatalf("Expecting error when config file doesnt exist, got nothing")
}
})
}
func TestCanonicalKubernetesNameFromFriendlyName(t *testing.T) {
t.Run("Returns canonical name for all known variants", func(t *testing.T) {
expectations := map[string]string{
"po": KubernetesPods,
"pod": KubernetesPods,
"deployment": KubernetesDeployments,
"deployments": KubernetesDeployments,
}
for input, expectedName := range expectations {
actualName, err := CanonicalKubernetesNameFromFriendlyName(input)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
if actualName != expectedName {
t.Fatalf("Expected friendly name [%s] to resolve to [%s], but got [%s]", input, expectedName, actualName)
}
}
})
t.Run("Returns error if input isn't a supported name", func(t *testing.T) {
unsupportedNames := []string{
"pdo", "dop", "paths", "path", "", "mesh",
}
for _, n := range unsupportedNames {
out, err := CanonicalKubernetesNameFromFriendlyName(n)
if err == nil {
t.Fatalf("Expecting error when resolving [%s], but it did resolve to [%s]", n, out)
}
}
})
}