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package junitparams;
import org.junit.Test;
import org.junit.runner.RunWith;
import junitparams.internal.Utils;
import static junitparams.JUnitParamsRunner.*;
import static junitparams.internal.Utils.*;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.Assert.fail;
@RunWith(JUnitParamsRunner.class)
public class ObjectStringificationTest {
@Test
public void stringifyString() throws Exception {
assertThat(stringify("exampleName", 0)).isEqualTo("[0] exampleName");
}
@Test
public void stringifyClassWithToStringAndOneParam() throws Exception {
ClassWithToString obj = new ClassWithToString("exampleName");
assertThat(stringify(obj, 0)).isEqualTo("[0] exampleName");
}
@Test
public void stringifyClassWithToStringAndManyParams() throws Exception {
ClassWithToString obj1 = new ClassWithToString("one");
ClassWithToString obj2 = new ClassWithToString("two");
assertThat(stringify(new Object[]{obj1, obj2}, 0)).isEqualTo("[0] one, two");
}
@Test
public void stringifyClassWithToStringInSuperclass() throws Exception {
ClassWithToString obj = new ClassWithToString("exampleName");
assertThat(Utils.stringify(obj, 0)).isEqualTo("[0] exampleName");
}
private class ClassWithToString {
private String description;
public ClassWithToString(String description) {
this.description = description;
}
@Override
public String toString() {
return description;
}
}
@Test
public void stringifyArray() {
Double[] nullArray = null;
int[] primitiveArray = {1, 2, 3};
String[] array = {"one", "two", null};
Object[] mixed = $(
$(nullArray, "stringOne", primitiveArray, "stringTwo", array)
);
assertThat(Utils.stringify(mixed)).isEqualTo("null, stringOne, [1, 2, 3], stringTwo, [one, two, null]");
}
@Test
@Parameters
public void shouldCreateParameterObjectsOnce(Object object) {
assertThat(object).isInstanceOf(A.class);
}
public Object[] parametersForShouldCreateParameterObjectsOnce() {
return new Object[]{new A()};
}
static class A {
static int instances = 0;
String test = "test";
A() {
if (++instances > 1) {
fail();
}
}
@Override
public String toString() {
return "[0] exampleName" + super.toString();
}
}
}
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