Felis/cmd/felis/run_test.go

package main

import (
	"bytes"
	"os"
	"strings"
	"testing"
)

func TestRunNoArgsPrintsUsage(t *testing.T) {
	var out, errBuf bytes.Buffer
	if code := run(nil, &out, &errBuf); code != 2 {
		t.Errorf("exit code = %d, want 2", code)
	}
	if !strings.Contains(errBuf.String(), "Usage:") {
		t.Errorf("expected usage on stderr, got %q", errBuf.String())
	}
}

func TestRunHelp(t *testing.T) {
	var out, errBuf bytes.Buffer
	if code := run([]string{"help"}, &out, &errBuf); code != 0 {
		t.Errorf("exit code = %d, want 0", code)
	}
	if !strings.Contains(out.String(), "felis") {
		t.Errorf("expected usage on stdout, got %q", out.String())
	}
}

func TestRunUnknownCommand(t *testing.T) {
	var out, errBuf bytes.Buffer
	if code := run([]string{"frobnicate"}, &out, &errBuf); code != 2 {
		t.Errorf("exit code = %d, want 2", code)
	}
	if !strings.Contains(errBuf.String(), "unknown command") {
		t.Errorf("expected unknown-command error, got %q", errBuf.String())
	}
}

func TestRunApplyRequiresFileFlag(t *testing.T) {
	// Without -f the command must fail with usage (2), not try to contact a
	// cluster. It can't return 0 because no CRD was created, and it can't return 1
	// because that would be ambiguous with a real server-side failure.
	var out, errBuf bytes.Buffer
	code := run([]string{"apply"}, &out, &errBuf)
	if code != 2 {
		t.Errorf("exit code = %d, want 2", code)
	}
	if !strings.Contains(errBuf.String(), "missing required flag -f") {
		t.Errorf("expected -f usage, got %q", errBuf.String())
	}
}

func TestRunApplyRejectsInvalidJSON(t *testing.T) {
	// Sending garbage via a temp file must exit 1 (input error), not panic or hang.
	empty := t.TempDir() + "/empty.json"
	if err := os.WriteFile(empty, nil, 0o644); err != nil {
		t.Fatal(err)
	}
	var out, errBuf bytes.Buffer
	code := run([]string{"apply", "-f", empty}, &out, &errBuf)
	// The empty file must fail JSON parsing or validation; either way it exits 1.
	if code != 1 {
		t.Errorf("exit code = %d, want 1", code)
	}
	if !strings.Contains(errBuf.String(), "invalid") && !strings.Contains(errBuf.String(), "required") {
		t.Errorf("expected input error, got %q", errBuf.String())
	}
}

func TestRunSetupAndBreakGlassCommands(t *testing.T) {
	t.Run("setup help", func(t *testing.T) {
		var out, errBuf bytes.Buffer
		if code := run([]string{"setup", "-h"}, &out, &errBuf); code != 0 {
			t.Errorf("exit code = %d, want 0", code)
		}
		if !strings.Contains(errBuf.String(), "Usage of setup") {
			t.Errorf("expected setup help, got stderr=%q stdout=%q", errBuf.String(), out.String())
		}
		if strings.Contains(errBuf.String(), "Usage of breakGlass") {
			t.Errorf("setup must not route to breakGlass help, got %q", errBuf.String())
		}
	})

	t.Run("breakGlass help", func(t *testing.T) {
		var out, errBuf bytes.Buffer
		if code := run([]string{"breakGlass", "-h"}, &out, &errBuf); code != 0 {
			t.Errorf("exit code = %d, want 0", code)
		}
		if !strings.Contains(errBuf.String(), "Usage of breakGlass") {
			t.Errorf("expected breakGlass help, got stderr=%q stdout=%q", errBuf.String(), out.String())
		}
	})

	t.Run("lowercase breakglass is intentionally rejected", func(t *testing.T) {
		var out, errBuf bytes.Buffer
		if code := run([]string{"breakglass", "-h"}, &out, &errBuf); code != 2 {
			t.Errorf("exit code = %d, want 2", code)
		}
		if !strings.Contains(errBuf.String(), "unknown command") {
			t.Errorf("expected lowercase alias rejection, got stderr=%q stdout=%q", errBuf.String(), out.String())
		}
	})
}

func TestRunReaperValidatesConfigBeforeDialing(t *testing.T) {
	var out, errBuf bytes.Buffer
	// Like api, reaper must fail fast (exit 1) at config load, before any
	// database or cluster contact.
	code := run([]string{"reaper", "-config", "this-file-does-not-exist.toml"}, &out, &errBuf)
	if code != 1 {
		t.Errorf("exit code = %d, want 1", code)
	}
	if !strings.Contains(errBuf.String(), "felis reaper:") {
		t.Errorf("expected reaper error on stderr, got %q", errBuf.String())
	}
}

func TestRunAPIValidatesConfigBeforeDialing(t *testing.T) {
	var out, errBuf bytes.Buffer
	// A non-existent config must fail fast (exit 1) at config load, before any
	// database or cluster contact.
	code := run([]string{"api", "-config", "this-file-does-not-exist.toml"}, &out, &errBuf)
	if code != 1 {
		t.Errorf("exit code = %d, want 1", code)
	}
	if !strings.Contains(errBuf.String(), "felis api:") {
		t.Errorf("expected api error on stderr, got %q", errBuf.String())
	}
}

func TestRunMigrateRequiresUpVerb(t *testing.T) {
	var out, errBuf bytes.Buffer
	// "migrate" with no verb should fail fast on usage, not touch a database.
	if code := run([]string{"migrate"}, &out, &errBuf); code != 2 {
		t.Errorf("exit code = %d, want 2", code)
	}
	if !strings.Contains(errBuf.String(), "felis migrate up") {
		t.Errorf("expected migrate usage, got %q", errBuf.String())
	}
}