refactor(pkg): move Status to a separate module

pkg/status/status.go

@@ -0,0 +1,21 @@
+// The status package contains the datatype that corresponds to monitoring
+// plugin status values.
+package status // import nocternity.net/gomonop/pkg/status
+
+// Status represents the return status of the monitoring plugin. The
+// corresponding integer value will be used as the program's exit code,
+// to be interpreted by the monitoring system.
+type Status int
+
+// Plugin exit statuses.
+const (
+	StatusOK Status = iota
+	StatusWarning
+	StatusCritical
+	StatusUnknown
+)
+
+// String representations of the plugin statuses.
+func (s Status) String() string {
+	return [...]string{"OK", "WARNING", "ERROR", "UNKNOWN"}[s]
+}

pkg/status/status_test.go

@@ -0,0 +1,26 @@
+package status // import nocternity.net/gomonop/pkg/status
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestStatusDefaultOK(t *testing.T) {
+	var s Status
+	assert.Equal(t, StatusOK, s)
+}
+
+func TestStatusToString(t *testing.T) {
+	assert.Equal(t, "OK", StatusOK.String())
+	assert.Equal(t, "WARNING", StatusWarning.String())
+	assert.Equal(t, "ERROR", StatusCritical.String())
+	assert.Equal(t, "UNKNOWN", StatusUnknown.String())
+}
+
+func TestStatusToInt(t *testing.T) {
+	assert.Equal(t, 0, int(StatusOK))
+	assert.Equal(t, 1, int(StatusWarning))
+	assert.Equal(t, 2, int(StatusCritical))
+	assert.Equal(t, 3, int(StatusUnknown))
+}