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package exif
import (
"context"
"io"
"io/ioutil"
"os"
"strings"
"testing"
"github.com/stretchr/testify/require"
)
func TestIsExifFile(t *testing.T) {
tests := []struct {
name string
expected bool
}{
{
name: "/full/path.jpg",
expected: true,
},
{
name: "path.jpeg",
expected: true,
},
{
name: "path.tiff",
expected: true,
},
{
name: "path.JPG",
expected: true,
},
{
name: "path.tar",
expected: false,
},
{
name: "path",
expected: false,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
require.Equal(t, test.expected, IsExifFile(test.name))
})
}
}
func TestNewCleanerWithValidFile(t *testing.T) {
input, err := os.Open("testdata/sample_exif.jpg")
require.NoError(t, err)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
cleaner, err := NewCleaner(ctx, input)
require.NoError(t, err, "Expected no error when creating cleaner command")
size, err := io.Copy(ioutil.Discard, cleaner)
require.NoError(t, err, "Expected no error when reading output")
sizeAfterStrip := int64(25399)
require.Equal(t, sizeAfterStrip, size, "Different size of converted image")
}
func TestNewCleanerWithInvalidFile(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
cleaner, err := NewCleaner(ctx, strings.NewReader("invalid image"))
require.NoError(t, err, "Expected no error when creating cleaner command")
size, err := io.Copy(ioutil.Discard, cleaner)
require.Error(t, err, "Expected error when reading output")
require.Equal(t, int64(0), size, "Size of invalid image should be 0")
}
func TestNewCleanerReadingAfterEOF(t *testing.T) {
input, err := os.Open("testdata/sample_exif.jpg")
require.NoError(t, err)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
cleaner, err := NewCleaner(ctx, input)
require.NoError(t, err, "Expected no error when creating cleaner command")
_, err = io.Copy(ioutil.Discard, cleaner)
require.NoError(t, err, "Expected no error when reading output")
buf := make([]byte, 1)
size, err := cleaner.Read(buf)
require.Equal(t, 0, size, "The output was already consumed by previous reads")
require.Equal(t, io.EOF, err, "We return EOF")
}
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