rewrite checkpoint

vendor/gopkg.in/op/go-logging.v1/level_test.go

@@ -0,0 +1,76 @@
+// Copyright 2013, Örjan Persson. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package logging
+
+import "testing"
+
+func TestLevelString(t *testing.T) {
+	// Make sure all levels can be converted from string -> constant -> string
+	for _, name := range levelNames {
+		level, err := LogLevel(name)
+		if err != nil {
+			t.Errorf("failed to get level: %v", err)
+			continue
+		}
+
+		if level.String() != name {
+			t.Errorf("invalid level conversion: %v != %v", level, name)
+		}
+	}
+}
+
+func TestLevelLogLevel(t *testing.T) {
+	tests := []struct {
+		expected Level
+		level    string
+	}{
+		{-1, "bla"},
+		{INFO, "iNfO"},
+		{ERROR, "error"},
+		{WARNING, "warninG"},
+	}
+
+	for _, test := range tests {
+		level, err := LogLevel(test.level)
+		if err != nil {
+			if test.expected == -1 {
+				continue
+			} else {
+				t.Errorf("failed to convert %s: %s", test.level, err)
+			}
+		}
+		if test.expected != level {
+			t.Errorf("failed to convert %s to level: %s != %s", test.level, test.expected, level)
+		}
+	}
+}
+
+func TestLevelModuleLevel(t *testing.T) {
+	backend := NewMemoryBackend(128)
+
+	leveled := AddModuleLevel(backend)
+	leveled.SetLevel(NOTICE, "")
+	leveled.SetLevel(ERROR, "foo")
+	leveled.SetLevel(INFO, "foo.bar")
+	leveled.SetLevel(WARNING, "bar")
+
+	expected := []struct {
+		level  Level
+		module string
+	}{
+		{NOTICE, ""},
+		{NOTICE, "something"},
+		{ERROR, "foo"},
+		{INFO, "foo.bar"},
+		{WARNING, "bar"},
+	}
+
+	for _, e := range expected {
+		actual := leveled.GetLevel(e.module)
+		if e.level != actual {
+			t.Errorf("unexpected level in %s: %s != %s", e.module, e.level, actual)
+		}
+	}
+}