Rename UnknownLevel to InvalidLevel

zapcore/level.go

@@ -54,10 +54,10 @@ const (
 	_minLevel = DebugLevel
 	_maxLevel = FatalLevel
 
-	// UnknownLevel is an invalid value for Level.
+	// InvalidLevel is an invalid value for Level.
 	//
 	// Core implementations may panic if they see messages of this level.
-	UnknownLevel = _maxLevel + 1
+	InvalidLevel = _maxLevel + 1
 )
 
 // ParseLevel parses a level based on the lower-case or all-caps ASCII
@@ -79,7 +79,7 @@ type leveledEnabler interface {
 }
 
 // LevelOf reports the minimum enabled log level for the given LevelEnabler
-// from Zap's supported log levels, or [UnknownLevel] if none of them are
+// from Zap's supported log levels, or [InvalidLevel] if none of them are
 // enabled.
 //
 // A LevelEnabler may implement a 'Level() Level' method to override the
@@ -106,7 +106,7 @@ func LevelOf(enab LevelEnabler) Level {
 		}
 	}
 
-	return UnknownLevel
+	return InvalidLevel
 }
 
 // String returns a lower-case ASCII representation of the log level.

zapcore/level_test.go

@@ -39,7 +39,7 @@ func TestLevelString(t *testing.T) {
 		PanicLevel:   "panic",
 		FatalLevel:   "fatal",
 		Level(-42):   "Level(-42)",
-		UnknownLevel: "Level(6)", // UnknownLevel does not have a name
+		InvalidLevel: "Level(6)", // InvalidLevel does not have a name
 	}
 
 	for lvl, stringLevel := range tests {
@@ -234,7 +234,7 @@ func TestLevelOf(t *testing.T) {
 		{
 			desc: "noop",
 			give: NewNopCore(), // always disabled
-			want: UnknownLevel,
+			want: InvalidLevel,
 		},
 	}
 

zapcore/tee_test.go

@@ -58,7 +58,7 @@ func TestLevelOfTee(t *testing.T) {
 		give []Core
 		want Level
 	}{
-		{desc: "empty", want: UnknownLevel},
+		{desc: "empty", want: InvalidLevel},
 		{
 			desc: "debug",
 			give: []Core{debugLogger},