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Merged
jbgi merged 1 commit into from
Jan 2, 2019
Merged

Additional Validation tests #375

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76 changes: 75 additions & 1 deletion core/src/test/java/fj/data/ValidationTest.java
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Original file line number Diff line number Diff line change
@@ -1,11 +1,12 @@
package fj.data;

import fj.P2;
import org.junit.Test;

import static fj.Semigroup.firstSemigroup;
import static fj.data.Validation.*;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertThat;
import fj.*;

public class ValidationTest {
@Test
Expand Down Expand Up @@ -232,6 +233,47 @@ public void testAccumulate8Fail() {
assertThat(v.fail().length(), is(2));
}

@Test
public void testAccumulate8s() {
final Validation<NumberFormatException, Integer> v1 = parseInt("1");
final Validation<NumberFormatException, Integer> v2 = parseInt("2");
final Validation<NumberFormatException, Integer> v3 = parseInt("3");
final Validation<NumberFormatException, Integer> v4 = parseInt("4");
final Validation<NumberFormatException, Integer> v5 = parseInt("5");
final Validation<NumberFormatException, Integer> v6 = parseInt("6");
final Validation<NumberFormatException, Integer> v7 = parseInt("7");
final Validation<NumberFormatException, Integer> v8 = parseInt("8");
final Option<NumberFormatException> on2 = v1.accumulate(firstSemigroup(), v2);
assertThat(on2, is(Option.none()));
final Option<NumberFormatException> on3 = v1.accumulate(firstSemigroup(), v2, v3);
assertThat(on3, is(Option.none()));
final Option<NumberFormatException> on4 = v1.accumulate(firstSemigroup(), v2, v3, v4);
assertThat(on4, is(Option.none()));
final Option<NumberFormatException> on5 = v1.accumulate(firstSemigroup(), v2, v3, v4, v5);
assertThat(on5, is(Option.none()));
final Option<NumberFormatException> on6 = v1.accumulate(firstSemigroup(), v2, v3, v4, v5, v6);
assertThat(on6, is(Option.none()));
final Option<NumberFormatException> on7 = v1.accumulate(firstSemigroup(), v2, v3, v4, v5, v6, v7);
assertThat(on7, is(Option.none()));
final Option<NumberFormatException> on8 = v1.accumulate(firstSemigroup(), v2, v3, v4, v5, v6, v7, v8);
assertThat(on8, is(Option.none()));
}

@Test
public void testAccumulate8sFail() {
final Option<NumberFormatException> on =
parseInt("x").accumulate(
firstSemigroup(),
parseInt("2"),
parseInt("3"),
parseInt("4"),
parseInt("5"),
parseInt("6"),
parseInt("7"),
parseInt("y"));
assertThat(on.some().getMessage(), is("For input string: \"x\""));
}

@Test(expected = Error.class)
public void testSuccess() {
parseShort("x").success();
Expand All @@ -241,4 +283,36 @@ public void testSuccess() {
public void testFail() {
parseShort("12").fail();
}

@Test
public void testCondition() {
final Validation<String, String> one = condition(true, "not 1", "one");
assertThat(one.success(), is("one"));
final Validation<String, String> fail = condition(false, "not 1", "one");
assertThat(fail.fail(), is("not 1"));
}

@Test
public void testNel() {
assertThat(Validation.success("success").nel().success(), is("success"));
assertThat(Validation.fail("fail").nel().fail().head(), is("fail"));
}

@Test
public void testFailNEL() {
Validation<NonEmptyList<Exception>, Integer> v = failNEL(new Exception("failed"));
assertThat(v.isFail(), is(true));
}

@Test
public void testEither() {
assertThat(either().f(Validation.success("success")).right().value(), is("success"));
assertThat(either().f(Validation.fail("fail")).left().value(), is("fail"));
}

@Test
public void testValidation() {
assertThat(validation().f(Either.right("success")).success(), is("success"));
assertThat(validation().f(Either.left("fail")).fail(), is("fail"));
}
}