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package main
import (
"bytes"
"errors"
"io"
"strings"
"testing"
"codeberg.org/snonux/hexai/internal"
"codeberg.org/snonux/hexai/internal/hexaimcp"
)
// The deprecation banner is unconditional: it must reach stderr on every
// invocation so users notice this binary is unmaintained.
func TestDeprecationWarning_Content(t *testing.T) {
for _, want := range []string{"DEPRECATION NOTICE", "EXPERIMENTAL", "NOT ACTIVELY MAINTAINED"} {
if !strings.Contains(deprecationWarning, want) {
t.Errorf("expected %q in deprecationWarning", want)
}
}
}
func TestDefaultLogPath(t *testing.T) {
path, err := defaultLogPath()
if err != nil {
t.Fatalf("defaultLogPath returned error: %v", err)
}
if path == "" {
t.Fatal("expected non-empty log path")
}
if !strings.HasSuffix(path, "hexai-mcp-server.log") {
t.Errorf("expected path to end with hexai-mcp-server.log, got %q", path)
}
}
func TestRun_ShowVersion(t *testing.T) {
var stdout bytes.Buffer
opts := mcpOptions{showVersion: true}
if err := run(opts, nil, &stdout, nil); err != nil {
t.Fatalf("run --version: %v", err)
}
got := strings.TrimSpace(stdout.String())
if got != internal.Version {
t.Fatalf("expected version %q, got %q", internal.Version, got)
}
}
func TestBuildOverrides(t *testing.T) {
opts := mcpOptions{
promptsDir: "/tmp/test-prompts",
slashCommandSync: true,
slashCommandDir: "/tmp/test-cmds",
}
overrides := buildOverrides(opts)
if overrides.PromptsDir != "/tmp/test-prompts" {
t.Fatalf("expected PromptsDir=/tmp/test-prompts, got %q", overrides.PromptsDir)
}
if !overrides.SlashCommandSync {
t.Fatal("expected SlashCommandSync=true")
}
if overrides.SlashCommandDir != "/tmp/test-cmds" {
t.Fatalf("expected SlashCommandDir=/tmp/test-cmds, got %q", overrides.SlashCommandDir)
}
}
func TestRun_SyncAll(t *testing.T) {
old := runBackfill
t.Cleanup(func() { runBackfill = old })
var gotLog, gotConfig string
var gotOverrides hexaimcp.MCPOverrides
runBackfill = func(logPath, configPath string, overrides hexaimcp.MCPOverrides) error {
gotLog = logPath
gotConfig = configPath
gotOverrides = overrides
return nil
}
opts := mcpOptions{
syncAll: true,
logPath: "/tmp/test.log",
configPath: "/tmp/cfg.toml",
promptsDir: "/tmp/prompts",
slashCommandSync: true,
slashCommandDir: "/tmp/cmds",
}
if err := run(opts, nil, nil, nil); err != nil {
t.Fatalf("run syncAll: %v", err)
}
if gotLog != "/tmp/test.log" {
t.Fatalf("expected logPath=/tmp/test.log, got %q", gotLog)
}
if gotConfig != "/tmp/cfg.toml" {
t.Fatalf("expected configPath=/tmp/cfg.toml, got %q", gotConfig)
}
if gotOverrides.PromptsDir != "/tmp/prompts" {
t.Fatalf("expected overrides.PromptsDir=/tmp/prompts, got %q", gotOverrides.PromptsDir)
}
if !gotOverrides.SlashCommandSync {
t.Fatal("expected overrides.SlashCommandSync=true")
}
if gotOverrides.SlashCommandDir != "/tmp/cmds" {
t.Fatalf("expected overrides.SlashCommandDir=/tmp/cmds, got %q", gotOverrides.SlashCommandDir)
}
}
func TestRun_SyncAllError(t *testing.T) {
old := runBackfill
t.Cleanup(func() { runBackfill = old })
wantErr := errors.New("backfill failed")
runBackfill = func(_, _ string, _ hexaimcp.MCPOverrides) error { return wantErr }
opts := mcpOptions{syncAll: true}
if err := run(opts, nil, nil, nil); !errors.Is(err, wantErr) {
t.Fatalf("expected backfill error, got: %v", err)
}
}
func TestRun_MCPServer(t *testing.T) {
old := runMCP
t.Cleanup(func() { runMCP = old })
called := false
runMCP = func(logPath, configPath string, overrides hexaimcp.MCPOverrides, stdin io.Reader, stdout, stderr io.Writer) error {
called = true
return nil
}
opts := mcpOptions{logPath: "/tmp/mcp.log"}
if err := run(opts, nil, nil, nil); err != nil {
t.Fatalf("run MCP: %v", err)
}
if !called {
t.Fatal("expected runMCP to be called")
}
}
func TestRun_MCPServerError(t *testing.T) {
old := runMCP
t.Cleanup(func() { runMCP = old })
wantErr := errors.New("server failed")
runMCP = func(_, _ string, _ hexaimcp.MCPOverrides, _ io.Reader, _, _ io.Writer) error { return wantErr }
if err := run(mcpOptions{}, nil, nil, nil); !errors.Is(err, wantErr) {
t.Fatalf("expected server error, got: %v", err)
}
}
// runMain version path: -version must short-circuit and write the version
// to stdout (not stderr, so it stays scriptable). Stderr still gets the
// deprecation banner — that's correct since the binary is leaving anyway.
func TestRunMain_VersionFlag(t *testing.T) {
var stdout, stderr bytes.Buffer
code := runMain([]string{"-version"}, nil, &stdout, &stderr)
if code != 0 {
t.Fatalf("runMain code = %d, want 0", code)
}
if got := strings.TrimSpace(stdout.String()); got != internal.Version {
t.Fatalf("stdout = %q, want version %q", got, internal.Version)
}
if !strings.Contains(stderr.String(), "DEPRECATION NOTICE") {
t.Fatalf("stderr missing deprecation banner: %q", stderr.String())
}
}
// runMain --sync-all path: forwards parsed options to runBackfill and
// returns 0 on success.
func TestRunMain_SyncAllSuccess(t *testing.T) {
old := runBackfill
t.Cleanup(func() { runBackfill = old })
var gotLog string
runBackfill = func(logPath string, _ string, _ hexaimcp.MCPOverrides) error {
gotLog = logPath
return nil
}
var stdout, stderr bytes.Buffer
code := runMain([]string{"-sync-all", "-log", "/tmp/sync.log"}, nil, &stdout, &stderr)
if code != 0 {
t.Fatalf("runMain code = %d, want 0; stderr=%q", code, stderr.String())
}
if gotLog != "/tmp/sync.log" {
t.Fatalf("logPath forwarded = %q, want /tmp/sync.log", gotLog)
}
}
// runMain run-error path: when the underlying server fails, runMain must
// return 1 (the production exit code) and write the error to stderr.
func TestRunMain_ServerErrorReturnsOne(t *testing.T) {
old := runMCP
t.Cleanup(func() { runMCP = old })
runMCP = func(string, string, hexaimcp.MCPOverrides, io.Reader, io.Writer, io.Writer) error {
return errors.New("mcp boom")
}
var stdout, stderr bytes.Buffer
code := runMain(nil, nil, &stdout, &stderr)
if code != 1 {
t.Fatalf("runMain code = %d, want 1", code)
}
if !strings.Contains(stderr.String(), "mcp boom") {
t.Fatalf("stderr missing error: %q", stderr.String())
}
}
// Bad flag must yield exit 2 without ever invoking the server stub.
func TestRunMain_BadFlagReturnsTwo(t *testing.T) {
old := runMCP
t.Cleanup(func() { runMCP = old })
called := false
runMCP = func(string, string, hexaimcp.MCPOverrides, io.Reader, io.Writer, io.Writer) error {
called = true
return nil
}
var stdout, stderr bytes.Buffer
code := runMain([]string{"--bogus"}, nil, &stdout, &stderr)
if code != 2 {
t.Fatalf("runMain code = %d, want 2", code)
}
if called {
t.Fatal("runMCP must not be called on flag-parse failure")
}
}
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