package feed

import (
  "encoding/json"
  "testing"
)

func TestSeverityUnmarshalInvalidData(t *testing.T) {
  test := []byte(`{}`)
  var val Severity

  if err := json.Unmarshal(test, &val); err == nil {
    t.Errorf("got \"%s\", exp error", val)
  }
}

func TestSeverityUnmarshalUnknown(t *testing.T) {
  test := []byte(`"foo"`)
  exp := "unknown severity: foo"
  var val Severity

  err := json.Unmarshal(test, &val)
  if err == nil {
    t.Errorf("got \"%s\", exp error", val)
    return
  }

  if err.Error() != exp {
    t.Errorf("got \"%s\", exp \"%s\"", err.Error(), exp)
  }
}

func TestSeverityUnmarshalValid(t *testing.T) {
  tests := []struct {
    val string
    exp Severity
  } {
    { "\"NONE\"", SeverityNone },
    { "\"LOW\"", SeverityLow },
    { "\"MEDIUM\"", SeverityMedium },
    { "\"HIGH\"", SeverityHigh },
    { "\"CRITICAL\"", SeverityCritical },
  }

  for _, test := range(tests) {
    t.Run(test.val, func(t *testing.T) {
      var got Severity
      if err := json.Unmarshal([]byte(test.val), &got); err != nil {
        t.Error(err)
        return
      }

      if got != test.exp {
        t.Errorf("got \"%s\", exp \"%s\"", got, test.exp)
      }
    })
  }
}

func TestSeverityString(t *testing.T) {
  tests := []struct {
    val Severity
    exp string
  } {
    { SeverityNone, "NONE" },
    { SeverityLow, "LOW" },
    { SeverityMedium, "MEDIUM" },
    { SeverityHigh, "HIGH" },
    { SeverityCritical, "CRITICAL" },

    { Severity(255), "Severity(255)" },
  }

  for _, test := range(tests) {
    t.Run(test.exp, func(t *testing.T) {
      got := test.val.String()

      if got != test.exp {
        t.Errorf("got \"%s\", exp \"%s\"", got, test.exp)
      }
    })
  }
}