package cpe

import (
  "encoding/json"
  "testing"
)

func TestNewV23Binding(t *testing.T) {
  passTests := []string {
    "cpe:2.3:o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*",
  }

  for _, val := range(passTests) {
    t.Run(val, func(t *testing.T) {
      if _, err := NewV23Binding(val); err != nil {
        t.Error(err)
      }
    })
  }

  failTests := []struct {
    val string
    exp string
  } {{
    val: "o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*",
    exp: "missing CPE 2.3 prefix",
  }, {
    val: "cpe:2.3:\n",
    exp: "invalid byte: 0x0a",
  }, {
    val: "cpe:2.3:o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*",
    exp: "invalid attribute count: 10 != 11",
  }, {
    val: "cpe:2.3:foo:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*",
    exp: "unknown part: \"foo\"",
  }}

  for _, test := range(failTests) {
    t.Run(test.val, func(t *testing.T) {
      got, err := NewV23Binding(test.val)
      if err == nil {
        t.Errorf("got %v, exp error", got)
      } else if err.Error() != test.exp {
        t.Errorf("got \"%s\", exp \"%s\"", err.Error(), test.exp)
      }
    })
  }
}

func TestV23BindingString(t *testing.T) {
  tests := []string {
    "cpe:2.3:o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*",
  }

  for _, val := range(tests) {
    t.Run(val, func(t *testing.T) {
      if got, err := NewV23Binding(val); err != nil {
        t.Error(err)
      } else if got.String() != val {
        t.Errorf("got \"%s\", exp \"%s\"", got.String(), val)
      }
    })
  }
}

func TestV23BindingUnmarshalJSON(t *testing.T) {
  passTests := []string {
    `"cpe:2.3:o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*"`,
  }

  for _, val := range(passTests) {
    t.Run(val, func(t *testing.T) {
      var b V23Binding
      if err := json.Unmarshal([]byte(val), &b); err != nil {
        t.Error(err)
      }
    })
  }

  failTests := []struct {
    val string
    exp string
  } {{
    val: `"o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*`,
    exp: "unexpected end of JSON input",
  }, {
    val: `"o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*"`,
    exp: "missing CPE 2.3 prefix",
  }}

  for _, test := range(failTests) {
    t.Run(test.val, func(t *testing.T) {
      var got V23Binding
      if err := json.Unmarshal([]byte(test.val), &got); err == nil {
        t.Errorf("got %v, exp error", got)
      } else if err.Error() != test.exp {
        t.Errorf("got \"%s\", exp \"%s\"", err.Error(), test.exp)
      }
    })
  }
}

func TestV23BindingMarshalJSON(t *testing.T) {
  tests := []string {
    "cpe:2.3:o:intel:ethernet_controller_e810_firmware:*:*:*:*:*:*:*:*",
  }

  for _, val := range(tests) {
    t.Run(val, func(t *testing.T) {
      // create binding, check for error
      b, err := NewV23Binding(val)
      if err != nil {
        t.Error(err)
        return
      }

      // marshal json, check for error
      got, err := json.Marshal(b)
      if err != nil {
        t.Error(err)
        return
      }

      // build/check expected value
      exp := "\"" + val + "\""
      if string(got) != exp {
        t.Errorf("got \"%s\", exp \"%s\"", string(got), exp)
        return
      }
    })
  }
}