import org.gradle.internal.SystemProperties
import org.junit.Test

import static org.hamcrest.CoreMatchers.equalTo
import static org.hamcrest.MatcherAssert.assertThat

class LineFilterTest {
    @Test void testEmptyInput() {
        def input = new StringReader("")
        def lineCount = 1
        def filter = new LineFilter(input, { "${lineCount++} - $it" as String })

        assertThat(filter.text, equalTo(""))
    }