adding in logging

vendor/go.uber.org/zap/level_test.go

@@ -0,0 +1,117 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+	"sync"
+	"testing"
+
+	"go.uber.org/zap/zapcore"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLevelEnablerFunc(t *testing.T) {
+	enab := LevelEnablerFunc(func(l zapcore.Level) bool { return l == zapcore.InfoLevel })
+	tests := []struct {
+		level   zapcore.Level
+		enabled bool
+	}{
+		{DebugLevel, false},
+		{InfoLevel, true},
+		{WarnLevel, false},
+		{ErrorLevel, false},
+		{DPanicLevel, false},
+		{PanicLevel, false},
+		{FatalLevel, false},
+	}
+	for _, tt := range tests {
+		assert.Equal(t, tt.enabled, enab.Enabled(tt.level), "Unexpected result applying LevelEnablerFunc to %s", tt.level)
+	}
+}
+
+func TestNewAtomicLevel(t *testing.T) {
+	lvl := NewAtomicLevel()
+	assert.Equal(t, InfoLevel, lvl.Level(), "Unexpected initial level.")
+	lvl.SetLevel(ErrorLevel)
+	assert.Equal(t, ErrorLevel, lvl.Level(), "Unexpected level after SetLevel.")
+	lvl = NewAtomicLevelAt(WarnLevel)
+	assert.Equal(t, WarnLevel, lvl.Level(), "Unexpected level after SetLevel.")
+}
+
+func TestAtomicLevelMutation(t *testing.T) {
+	lvl := NewAtomicLevel()
+	lvl.SetLevel(WarnLevel)
+	// Trigger races for non-atomic level mutations.
+	proceed := make(chan struct{})
+	wg := &sync.WaitGroup{}
+	runConcurrently(10, 100, wg, func() {
+		<-proceed
+		assert.Equal(t, WarnLevel, lvl.Level())
+	})
+	runConcurrently(10, 100, wg, func() {
+		<-proceed
+		lvl.SetLevel(WarnLevel)
+	})
+	close(proceed)
+	wg.Wait()
+}
+
+func TestAtomicLevelText(t *testing.T) {
+	tests := []struct {
+		text   string
+		expect zapcore.Level
+		err    bool
+	}{
+		{"debug", DebugLevel, false},
+		{"info", InfoLevel, false},
+		{"", InfoLevel, false},
+		{"warn", WarnLevel, false},
+		{"error", ErrorLevel, false},
+		{"dpanic", DPanicLevel, false},
+		{"panic", PanicLevel, false},
+		{"fatal", FatalLevel, false},
+		{"foobar", InfoLevel, true},
+	}
+
+	for _, tt := range tests {
+		var lvl AtomicLevel
+		// Test both initial unmarshaling and overwriting existing value.
+		for i := 0; i < 2; i++ {
+			if tt.err {
+				assert.Error(t, lvl.UnmarshalText([]byte(tt.text)), "Expected unmarshaling %q to fail.", tt.text)
+			} else {
+				assert.NoError(t, lvl.UnmarshalText([]byte(tt.text)), "Expected unmarshaling %q to succeed.", tt.text)
+			}
+			assert.Equal(t, tt.expect, lvl.Level(), "Unexpected level after unmarshaling.")
+			lvl.SetLevel(InfoLevel)
+		}
+
+		// Test marshalling
+		if tt.text != "" && !tt.err {
+			lvl.SetLevel(tt.expect)
+			marshaled, err := lvl.MarshalText()
+			assert.NoError(t, err, `Unexpected error marshalling level "%v" to text.`, tt.expect)
+			assert.Equal(t, tt.text, string(marshaled), "Expected marshaled text to match")
+			assert.Equal(t, tt.text, lvl.String(), "Expected Stringer call to match")
+		}
+	}
+}