[Unit Tests] - VerifyAndExtract

[tomsmith8]

Unit Test Coverage for "VerifyAndExtract"

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Stakwork Run

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Unit Test Code

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package auth

import (
  "errors"
  "testing"

  "github.com/stretchr/testify/assert"
  "github.com/stretchr/testify/mock"
)

// Mocking dependencies
type MockBtcecdsa struct {
  mock.Mock
}

func (m *MockBtcecdsa) RecoverCompact(sig, digest []byte) ([]byte, bool, error) {
  args := m.Called(sig, digest)
  return args.Get(0).([]byte), args.Bool(1), args.Error(2)
}

type MockChainhash struct {
  mock.Mock
}

func (m *MockChainhash) DoubleHashB(msg []byte) []byte {
  args := m.Called(msg)
  return args.Get(0).([]byte)
}

func TestVerifyAndExtract(t *testing.T) {
  mockBtcecdsa := new(MockBtcecdsa)
  mockChainhash := new(MockChainhash)

  // Replace actual dependencies with mocks
  btcecdsa = mockBtcecdsa
  chainhash = mockChainhash

  // Test case 1: Valid Signature and Message
  t.Run("Valid Signature and Message", func(t *testing.T) {
  	msg := []byte("valid message")
  	sig := []byte("valid signature")
  	expectedPubKey := []byte("public key")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest)
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(expectedPubKey, true, nil)

  	pubKey, valid, err := VerifyAndExtract(msg, sig)

  	assert.Equal(t, "public key", pubKey)
  	assert.True(t, valid)
  	assert.Nil(t, err)
  })

  // Test case 2: Invalid Signature
  t.Run("Invalid Signature", func(t *testing.T) {
  	msg := []byte("valid message")
  	sig := []byte("invalid signature")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest)
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(nil, false, errors.New("invalid signature"))

  	pubKey, valid, err := VerifyAndExtract(msg, sig)

  	assert.Empty(t, pubKey)
  	assert.False(t, valid)
  	assert.NotNil(t, err)
  })

  // Test case 3: Invalid Message
  t.Run("Invalid Message", func(t *testing.T) {
  	msg := []byte("invalid message")
  	sig := []byte("valid signature")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest)
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(nil, false, errors.New("invalid message"))

  	pubKey, valid, err := VerifyAndExtract(msg, sig)

  	assert.Empty(t, pubKey)
  	assert.False(t, valid)
  	assert.NotNil(t, err)
  })

  // Test case 4: Empty Message and Signature
  t.Run("Empty Message and Signature", func(t *testing.T) {
  	msg := []byte{}
  	sig := []byte{}

  	pubKey, valid, err := VerifyAndExtract(msg, sig)

  	assert.Empty(t, pubKey)
  	assert.False(t, valid)
  	assert.EqualError(t, err, "bad input")
  })

  // Test case 5: Nil Message and Signature
  t.Run("Nil Message and Signature", func(t *testing.T) {
  	pubKey, valid, err := VerifyAndExtract(nil, nil)

  	assert.Empty(t, pubKey)
  	assert.False(t, valid)
  	assert.EqualError(t, err, "bad input")
  })

  // Test case 6: Maximum Length Message
  t.Run("Maximum Length Message", func(t *testing.T) {
  	msg := make([]byte, maxMessageLength) // assuming maxMessageLength is defined
  	sig := []byte("valid signature")
  	expectedPubKey := []byte("public key")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest)
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(expectedPubKey, true, nil)

  	pubKey, valid, err := VerifyAndExtract(msg, sig)

  	assert.Equal(t, "public key", pubKey)
  	assert.True(t, valid)
  	assert.Nil(t, err)
  })

  // Test case 7: Corrupted Signature
  t.Run("Corrupted Signature", func(t *testing.T) {
  	msg := []byte("valid message")
  	sig := []byte("corrupted signature")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest)
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(nil, false, errors.New("corrupted signature"))

  	pubKey, valid, err := VerifyAndExtract(msg, sig)

  	assert.Empty(t, pubKey)
  	assert.False(t, valid)
  	assert.NotNil(t, err)
  })

  // Test case 8: Unsupported Signature Format
  t.Run("Unsupported Signature Format", func(t *testing.T) {
  	msg := []byte("valid message")
  	sig := []byte("unsupported format")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest)
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(nil, false, errors.New("unsupported format"))

  	pubKey, valid, err := VerifyAndExtract(msg, sig)

  	assert.Empty(t, pubKey)
  	assert.False(t, valid)
  	assert.NotNil(t, err)
  })

  // Test case 9: Malformed Signature
  t.Run("Malformed Signature", func(t *testing.T) {
  	msg := []byte("valid message")
  	sig := []byte("malformed")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest)
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(nil, false, errors.New("malformed signature"))

  	pubKey, valid, err := VerifyAndExtract(msg, sig)

  	assert.Empty(t, pubKey)
  	assert.False(t, valid)
  	assert.NotNil(t, err)
  })

  // Test case 10: Large Message
  t.Run("Large Message", func(t *testing.T) {
  	msg := make([]byte, largeMessageSize) // assuming largeMessageSize is defined
  	sig := []byte("valid signature")
  	expectedPubKey := []byte("public key")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest)
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(expectedPubKey, true, nil)

  	pubKey, valid, err := VerifyAndExtract(msg, sig)

  	assert.Equal(t, "public key", pubKey)
  	assert.True(t, valid)
  	assert.Nil(t, err)
  })

  // Test case 11: High Volume of Requests
  t.Run("High Volume of Requests", func(t *testing.T) {
  	msg := []byte("valid message")
  	sig := []byte("valid signature")
  	expectedPubKey := []byte("public key")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest).Times(highVolumeCount) // assuming highVolumeCount is defined
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(expectedPubKey, true, nil).Times(highVolumeCount)

  	for i := 0; i < highVolumeCount; i++ {
  		pubKey, valid, err := VerifyAndExtract(msg, sig)

  		assert.Equal(t, "public key", pubKey)
  		assert.True(t, valid)
  		assert.Nil(t, err)
  	}
  })

  // Test case 12: Boundary Signature Values
  t.Run("Boundary Signature Values", func(t *testing.T) {
  	msg := []byte("valid message")
  	sig := []byte("boundary signature")
  	expectedPubKey := []byte("public key")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest)
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(expectedPubKey, true, nil)

  	pubKey, valid, err := VerifyAndExtract(msg, sig)

  	assert.Equal(t, "public key", pubKey)
  	assert.True(t, valid)
  	assert.Nil(t, err)
  })

  // Test case 13: Signature with Special Characters
  t.Run("Signature with Special Characters", func(t *testing.T) {
  	msg := []byte("valid message")
  	sig := []byte("special!@#$%^&*()")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest)
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(nil, false, errors.New("special characters"))

  	pubKey, valid, err := VerifyAndExtract(msg, sig)

  	assert.Empty(t, pubKey)
  	assert.False(t, valid)
  	assert.NotNil(t, err)
  })

  // Test case 14: Repeated Signature Verification
  t.Run("Repeated Signature Verification", func(t *testing.T) {
  	msg := []byte("valid message")
  	sig := []byte("valid signature")
  	expectedPubKey := []byte("public key")
  	expectedDigest := []byte("digest")

  	mockChainhash.On("DoubleHashB", append(signedMsgPrefix, msg...)).Return(expectedDigest).Times(repeatCount) // assuming repeatCount is defined
  	mockBtcecdsa.On("RecoverCompact", sig, expectedDigest).Return(expectedPubKey, true, nil).Times(repeatCount)

  	for i := 0; i < repeatCount; i++ {
  		pubKey, valid, err := VerifyAndExtract(msg, sig)

  		assert.Equal(t, "public key", pubKey)
  		assert.True(t, valid)
  		assert.Nil(t, err)
  	}
  })
}