Function TestConfig

config_test.go:34–86

(t *testing.T)

)

func TestConfig(t *testing.T) {
	tests := []struct {
		desc     string
		cfg      Config
		expectN  int64
		expectRe string
	}{
		{
			desc:    "production",
			cfg:     NewProductionConfig(),
			expectN: 2 + 100 + 1, // 2 from initial logs, 100 initial sampled logs, 1 from off-by-one in sampler
			expectRe: `{"level":"info","caller":"[a-z0-9_-]+/config_test.go:\d+","msg":"info","k":"v","z":"zz"}` + "\n" +
				`{"level":"warn","caller":"[a-z0-9_-]+/config_test.go:\d+","msg":"warn","k":"v","z":"zz"}` + "\n",
		},
		{
			desc:    "development",
			cfg:     NewDevelopmentConfig(),
			expectN: 3 + 200, // 3 initial logs, all 200 subsequent logs
			expectRe: "DEBUG\t[a-z0-9_-]+/config_test.go:" + `\d+` + "\tdebug\t" + `{"k": "v", "z": "zz"}` + "\n" +
				"INFO\t[a-z0-9_-]+/config_test.go:" + `\d+` + "\tinfo\t" + `{"k": "v", "z": "zz"}` + "\n" +
				"WARN\t[a-z0-9_-]+/config_test.go:" + `\d+` + "\twarn\t" + `{"k": "v", "z": "zz"}` + "\n" +
				`go.uber.org/zap.TestConfig.\w+`,
		},
	}

	for _, tt := range tests {
		t.Run(tt.desc, func(t *testing.T) {
			logOut := filepath.Join(t.TempDir(), "test.log")

			tt.cfg.OutputPaths = []string{logOut}
			tt.cfg.EncoderConfig.TimeKey = "" // no timestamps in tests
			tt.cfg.InitialFields = map[string]interface{}{"z": "zz", "k": "v"}

			hook, count := makeCountingHook()
			logger, err := tt.cfg.Build(Hooks(hook))
			require.NoError(t, err, "Unexpected error constructing logger.")

			logger.Debug("debug")
			logger.Info("info")
			logger.Warn("warn")

			byteContents, err := os.ReadFile(logOut)
			require.NoError(t, err, "Couldn't read log contents from temp file.")
			logs := string(byteContents)
			assert.Regexp(t, tt.expectRe, logs, "Unexpected log output.")

			for i := 0; i < 200; i++ {
				logger.Info("sampling")
			}
			assert.Equal(t, tt.expectN, count.Load(), "Hook called an unexpected number of times.")
		})
	}
}

func TestConfigWithInvalidPaths(t *testing.T) {
	tests := []struct {