mirror of https://github.com/hashicorp/consul
109 lines
2.9 KiB
Go
109 lines
2.9 KiB
Go
package agent
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"github.com/hashicorp/consul/agent/config"
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"github.com/hashicorp/consul/sdk/testutil"
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"github.com/hashicorp/consul/types"
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"github.com/hashicorp/go-hclog"
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"github.com/hashicorp/go-uuid"
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"github.com/stretchr/testify/require"
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)
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func TestNewNodeIDFromConfig(t *testing.T) {
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logger := hclog.New(nil)
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tmpDir := testutil.TempDir(t, "")
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cfg := &config.RuntimeConfig{
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DataDir: tmpDir,
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}
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var randomNodeID types.NodeID
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t.Run("a new ID is generated when none is specified", func(t *testing.T) {
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var err error
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randomNodeID, err = newNodeIDFromConfig(cfg, logger)
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require.NoError(t, err)
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_, err = uuid.ParseUUID(string(randomNodeID))
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require.NoError(t, err)
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})
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t.Run("running again should get the NodeID that was persisted to disk", func(t *testing.T) {
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nodeID, err := newNodeIDFromConfig(cfg, logger)
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require.NoError(t, err)
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require.NotEqual(t, nodeID, "")
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require.Equal(t, nodeID, randomNodeID)
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})
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t.Run("invalid NodeID in config", func(t *testing.T) {
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cfg.NodeID = "nope"
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_, err := newNodeIDFromConfig(cfg, logger)
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require.Error(t, err)
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require.Contains(t, err.Error(), "specified NodeID is invalid")
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})
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t.Run("valid NodeID in config", func(t *testing.T) {
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newID, err := uuid.GenerateUUID()
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require.NoError(t, err)
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cfg.NodeID = types.NodeID(strings.ToUpper(newID))
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nodeID, err := newNodeIDFromConfig(cfg, logger)
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require.NoError(t, err)
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require.Equal(t, string(nodeID), newID)
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})
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t.Run("invalid NodeID in file", func(t *testing.T) {
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cfg.NodeID = ""
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filename := filepath.Join(cfg.DataDir, "node-id")
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err := os.WriteFile(filename, []byte("adf4238a!882b!9ddc!4a9d!5b6758e4159e"), 0600)
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require.NoError(t, err)
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_, err = newNodeIDFromConfig(cfg, logger)
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require.Error(t, err)
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require.Contains(t, err.Error(), fmt.Sprintf("NodeID in %s is invalid", filename))
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})
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t.Run("valid NodeID in file", func(t *testing.T) {
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cfg.NodeID = ""
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filename := filepath.Join(cfg.DataDir, "node-id")
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err := os.WriteFile(filename, []byte("ADF4238a-882b-9ddc-4a9d-5b6758e4159e"), 0600)
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require.NoError(t, err)
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nodeID, err := newNodeIDFromConfig(cfg, logger)
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require.NoError(t, err)
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require.Equal(t, string(nodeID), "adf4238a-882b-9ddc-4a9d-5b6758e4159e")
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})
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}
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func TestMakeNodeID(t *testing.T) {
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logger := hclog.New(nil)
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var randomID string
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t.Run("Random ID when HostNodeID is disabled", func(t *testing.T) {
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var err error
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randomID, err = makeNodeID(logger, true)
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require.NoError(t, err)
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_, err = uuid.ParseUUID(randomID)
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require.NoError(t, err)
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another, err := makeNodeID(logger, true)
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require.NoError(t, err)
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require.NotEqual(t, randomID, another)
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})
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t.Run("host-based ID when HostNodeID is enabled", func(t *testing.T) {
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id, err := makeNodeID(logger, false)
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require.NoError(t, err)
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require.NotEqual(t, randomID, id)
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another, err := makeNodeID(logger, false)
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require.NoError(t, err)
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require.Equal(t, id, another)
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})
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}
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