1 package junitparams;
2 
3 import java.math.BigDecimal;
4 
5 import org.junit.Test;
6 import org.junit.runner.RunWith;
7 
8 import static org.assertj.core.api.Assertions.*;
9 
10 @RunWith(JUnitParamsRunner.class)
11 public class ParamsInAnnotationTest {
12 
13     @Test
14     @Parameters({"1", "2"})
singleParam(int number)15     public void singleParam(int number) {
16         assertThat(number).isGreaterThan(0);
17     }
18 
19     @Test
20     @Parameters({"1, true", "2, false"})
multipleParamsCommaSeparated(int number, boolean isOne)21     public void multipleParamsCommaSeparated(int number, boolean isOne) throws Exception {
22         if (isOne)
23             assertThat(number).isEqualTo(1);
24         else
25             assertThat(number).isNotEqualTo(1);
26     }
27 
28     @Test
29     @Parameters({"1 | true", "2 | false"})
multipleParamsPipeSeparated(int number, boolean isOne)30     public void multipleParamsPipeSeparated(int number, boolean isOne) throws Exception {
31         if (isOne)
32             assertThat(number).isEqualTo(1);
33         else
34             assertThat(number).isNotEqualTo(1);
35     }
36 
37     @Test
38     @Parameters({"a \n b", "a(asdf)", "a \r a"})
specialCharsInParam(String a)39     public void specialCharsInParam(String a) throws Exception {
40         assertThat(a).isIn("a \n b", "a(asdf)", "a \r a");
41     }
42 
43     @Test
44     @Parameters({",1"})
emptyFirstParam(String empty, int number)45     public void emptyFirstParam(String empty, int number) {
46         assertThat(empty).isEmpty();
47         assertThat(number).isEqualTo(1);
48     }
49 
50     @Test
51     @Parameters({"1,"})
emptyLastParam(int number, String empty)52     public void emptyLastParam(int number, String empty) {
53         assertThat(empty).isEmpty();
54         assertThat(number).isEqualTo(1);
55     }
56 
57     @Test
58     @Parameters({"1,,1"})
emptyMiddleParam(int number1, String empty, int number2)59     public void emptyMiddleParam(int number1, String empty, int number2) {
60         assertThat(empty).isEmpty();
61         assertThat(number1).isEqualTo(1);
62         assertThat(number2).isEqualTo(1);
63     }
64 
65     @Test
66     @Parameters({","})
allParamsEmpty(String empty1, String empty2)67     public void allParamsEmpty(String empty1, String empty2) {
68         assertThat(empty1).isEmpty();
69         assertThat(empty2).isEmpty();
70     }
71 
72     @Test
73     @Parameters({
74             "1, 1, 1",
75             "1.1, 1.1, 2",
76             "11, 11, 2",
77             "1.11, 1.11, 3"
78     })
convertToBigDecimal(BigDecimal number, String string, int precision)79     public void convertToBigDecimal(BigDecimal number, String string, int precision) {
80         assertThat(number).isEqualByComparingTo(string);
81         assertThat(number.precision()).isEqualTo(precision);
82     }
83 
84     @Test(expected = IllegalArgumentException.class)
85     @Parameters({" invalidNumber "})
cannotConvertToBigDecimalForInvalidInput(BigDecimal number)86     public void cannotConvertToBigDecimalForInvalidInput(BigDecimal number) {
87     }
88 }
89