cli/pkg/log/log_test.go
Snider 629141e279 feat(pkg): add standalone log and errors packages
Extract logging to pkg/log for use outside CLI:
- Logger with Debug/Info/Warn/Error levels
- Key-value pairs for structured logging
- Customisable styling and output
- Optional Core framework integration via Service

Enhance pkg/errors with:
- Wrap() and WrapCode() helpers
- Code() for error codes
- Op(), ErrCode(), Message(), Root() extractors
- Standard library wrappers (Is, As, New, Join)

Update pkg/cli/log.go to use pkg/log with CLI styling.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-30 22:02:40 +00:00

124 lines
3.1 KiB
Go

package log
import (
"bytes"
"strings"
"testing"
)
func TestLogger_Levels(t *testing.T) {
tests := []struct {
name string
level Level
logFunc func(*Logger, string, ...any)
expected bool
}{
{"debug at debug", LevelDebug, (*Logger).Debug, true},
{"info at debug", LevelDebug, (*Logger).Info, true},
{"warn at debug", LevelDebug, (*Logger).Warn, true},
{"error at debug", LevelDebug, (*Logger).Error, true},
{"debug at info", LevelInfo, (*Logger).Debug, false},
{"info at info", LevelInfo, (*Logger).Info, true},
{"warn at info", LevelInfo, (*Logger).Warn, true},
{"error at info", LevelInfo, (*Logger).Error, true},
{"debug at warn", LevelWarn, (*Logger).Debug, false},
{"info at warn", LevelWarn, (*Logger).Info, false},
{"warn at warn", LevelWarn, (*Logger).Warn, true},
{"error at warn", LevelWarn, (*Logger).Error, true},
{"debug at error", LevelError, (*Logger).Debug, false},
{"info at error", LevelError, (*Logger).Info, false},
{"warn at error", LevelError, (*Logger).Warn, false},
{"error at error", LevelError, (*Logger).Error, true},
{"debug at quiet", LevelQuiet, (*Logger).Debug, false},
{"info at quiet", LevelQuiet, (*Logger).Info, false},
{"warn at quiet", LevelQuiet, (*Logger).Warn, false},
{"error at quiet", LevelQuiet, (*Logger).Error, false},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var buf bytes.Buffer
l := New(Options{Level: tt.level, Output: &buf})
tt.logFunc(l, "test message")
hasOutput := buf.Len() > 0
if hasOutput != tt.expected {
t.Errorf("expected output=%v, got output=%v", tt.expected, hasOutput)
}
})
}
}
func TestLogger_KeyValues(t *testing.T) {
var buf bytes.Buffer
l := New(Options{Level: LevelDebug, Output: &buf})
l.Info("test message", "key1", "value1", "key2", 42)
output := buf.String()
if !strings.Contains(output, "test message") {
t.Error("expected message in output")
}
if !strings.Contains(output, "key1=value1") {
t.Error("expected key1=value1 in output")
}
if !strings.Contains(output, "key2=42") {
t.Error("expected key2=42 in output")
}
}
func TestLogger_SetLevel(t *testing.T) {
l := New(Options{Level: LevelInfo})
if l.Level() != LevelInfo {
t.Error("expected initial level to be Info")
}
l.SetLevel(LevelDebug)
if l.Level() != LevelDebug {
t.Error("expected level to be Debug after SetLevel")
}
}
func TestLevel_String(t *testing.T) {
tests := []struct {
level Level
expected string
}{
{LevelQuiet, "quiet"},
{LevelError, "error"},
{LevelWarn, "warn"},
{LevelInfo, "info"},
{LevelDebug, "debug"},
{Level(99), "unknown"},
}
for _, tt := range tests {
t.Run(tt.expected, func(t *testing.T) {
if got := tt.level.String(); got != tt.expected {
t.Errorf("expected %q, got %q", tt.expected, got)
}
})
}
}
func TestDefault(t *testing.T) {
// Default logger should exist
if Default() == nil {
t.Error("expected default logger to exist")
}
// Package-level functions should work
var buf bytes.Buffer
l := New(Options{Level: LevelDebug, Output: &buf})
SetDefault(l)
Info("test")
if buf.Len() == 0 {
t.Error("expected package-level Info to produce output")
}
}