experimental access code for RbacUserEntity

src/test/java/net/hostsharing/hsadminng/rbac/rbacuser/RbacUserEntityUnitTest.java

@@ -0,0 +1,69 @@
+package net.hostsharing.hsadminng.rbac.rbacuser;
+
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+import java.time.temporal.ChronoUnit;
+import java.util.UUID;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+class RbacUserEntityUnitTest {
+
+    RbacUserEntity givenUser = new RbacUserEntity(UUID.randomUUID(), "test@example.org");
+
+    @Test
+    void generatedAccessCodeMatchesDefinedPattern() {
+        final var givenAccessCode = givenUser.generateAccessCode();
+
+        final var actual = givenAccessCode.matches("[0-9]{3}:[0-9]{3}");
+
+        assertThat(actual).isTrue();
+    }
+
+    @Test
+    void freshAccessCodeIsValid() {
+        final var givenAccessCode = givenUser.generateAccessCode();
+
+        final var actual = givenUser.isValidAccessCode(givenAccessCode, 4);
+
+        assertThat(actual).isTrue();
+    }
+
+    @Test
+    void recentEnoughAccessCodeIsValid() {
+        final var givenAccessCode = givenUser.generateAccessCode(LocalDateTime.now().minus(4, ChronoUnit.HOURS));
+
+        final var actual = givenUser.isValidAccessCode(givenAccessCode, 4);
+
+        assertThat(actual).isTrue();
+    }
+
+    @Test
+    void outdatedEnoughAccessCodeIsNotValid() {
+        final var givenAccessCode = givenUser.generateAccessCode(LocalDateTime.now().minus(5, ChronoUnit.HOURS));
+
+        final var actual = givenUser.isValidAccessCode(givenAccessCode, 4);
+
+        assertThat(actual).isFalse();
+    }
+
+    @Test
+    void noExceptionIsThrowIfMaxValidityIsNotExceeded() {
+        final var givenAccessCode = givenUser.generateAccessCode();
+
+        givenUser.isValidAccessCode(givenAccessCode, 24 * 21);
+    }
+
+    @Test
+    void illegalArgumentExceptionIsThrowIfMaxValidityIsExceeded() {
+        final var givenAccessCode = givenUser.generateAccessCode();
+
+        assertThatThrownBy(() -> {
+            givenUser.isValidAccessCode(givenAccessCode, 24 * 21 + 1);
+        })
+                .isInstanceOf(IllegalArgumentException.class)
+                .hasMessage("Max validity (21 days) exceeded.");
+    }
+}