@Test
public void shouldInitializePaginationOptionWithOffset0ForFirstPage() {
Map<String, String> parameters = new HashMap<>();
Paginator paginator = new Paginator(parameters, scheme, parser);
when(scheme.nextPage(eq(parameters), any(Page.class))).thenReturn("testresponse");
when(parser.parse("testresponse"))
.thenReturn(new PaginatedResponse(null, new PaginatedResponseMeta(null, null, null, 0)));
paginator.nextPage();
ArgumentCaptor<Page> optionCaptor = ArgumentCaptor.forClass(Page.class);
verify(scheme).nextPage(eq(parameters), optionCaptor.capture());
Page paginationOption = optionCaptor.getValue();
assertEquals(100, paginationOption.getLimit());
assertEquals(0, paginationOption.getOffset());
}
@Test
public void shouldOverrideDefaultLimitAndOffsetIfProvidedInParams() {
Map<String, String> parameters =
new HashMap<String, String>() {
{
put(Constants.OFFSET, "2000");
put(Constants.LIMIT, "1000");
}
};
Paginator paginator = new Paginator(parameters, scheme, parser);
when(scheme.nextPage(eq(parameters), any(Page.class))).thenReturn("testresponse");
when(parser.parse("testresponse"))
.thenReturn(new PaginatedResponse(null, new PaginatedResponseMeta(null, null, null, 0)));
paginator.nextPage();
paginator.nextPage();
ArgumentCaptor<Page> optionCaptor = ArgumentCaptor.forClass(Page.class);
verify(scheme).nextPage(eq(parameters), optionCaptor.capture());
assertEquals(2000, optionCaptor.getValue().getOffset());
assertEquals(1000, optionCaptor.getValue().getLimit());
}
