/***** BEGIN LICENSE BLOCK *****
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* Copyright (C) 2001 Benoit Cerrina <b.cerrina@wanadoo.fr>
* Copyright (C) 2001 Alan Moore <alan_moore@gmx.net>
* Copyright (C) 2001-2004 Jan Arne Petersen <jpetersen@uni-bonn.de>
* Copyright (C) 2002 Anders Bengtsson <ndrsbngtssn@yahoo.se>
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package org.jruby.test;
import org.jruby.Ruby;
import org.jruby.RubyHash;
/**
* @author chadfowler
*/
public class TestRubyHash extends TestRubyBase {
private String result;
public TestRubyHash(String name) {
super(name);
}
@Override
protected void setUp() throws Exception {
super.setUp();
if (runtime == null) {
runtime = Ruby.newInstance();
}
eval("$h = {'foo' => 'bar'}");
}
/**
* Test literal constructor {}, Hash::[], and Hash::new with and
* without the optional default-value argument.
*/
public void testConstructors() throws Exception {
result = eval("hash = {'a', 100}; p hash");
assertEquals("{\"a\"=>100}", result);
result = eval("hash = Hash['b', 200]; p hash");
assertEquals("{\"b\"=>200}", result);
result = eval("hash = Hash.new(); p hash['test']");
assertEquals("nil", result);
result = eval("hash = Hash.new('default'); p hash['test']");
assertEquals("\"default\"", result);
}
/**
* Test Hash#[]= (store) and Hash#[] (retrieve). Also test whether
* Object#== is properly defined for each class.
*/
public void testLookups() throws Exception {
// value equality
result = eval("key = 'a'; hash = {key => 'one'}; hash.store('a', 'two'); puts hash[key]");
assertEquals("two", result);
result = eval("key = [1,2]; hash = {key => 'one'}; hash[[1,2]] = 'two'; puts hash[key]");
assertEquals("two", result);
result = eval("key = :a; hash = {key => 'one'}; hash[:a] = 'two'; puts hash[key]");
assertEquals("two", result);
result = eval("key = 1234; hash = {key => 'one'}; hash[1234] = 'two'; puts hash[key]");
assertEquals("two", result);
result = eval("key = 12.4; hash = {key => 'one'}; hash[12.4] = 'two'; puts hash[key]");
assertEquals("two", result);
result = eval("key = 19223372036854775807; hash = {key => 'one'}; hash[19223372036854775807] = 'two'; puts hash[key]");
assertEquals("two", result);
// identity equality
result = eval("key = /a/; hash = {key => 'one'}; hash[/a/] = 'two'; puts hash[key]");
assertEquals("two", result);
result = eval("key = (1..3); hash = {key => 'one'}; hash[(1..3)] = 'two'; puts hash[key]");
assertEquals("two", result);
}
/**
* Hash#to_s, Hash#to_a, Hash#to_hash
*/
public void testConversions() throws Exception {
result = eval("p $h.to_s");
assertEquals("\"foobar\"", result);
result = eval("p $h.to_a");
assertEquals("[[\"foo\", \"bar\"]]", result);
result = eval("p $h.to_hash");
assertEquals("{\"foo\"=>\"bar\"}", result);
}
/**
* Hash#size, Hash#length, Hash#empty?
*/
public void testSizeRelated() throws Exception {
assertEquals("1", eval("p $h.size"));
assertEquals("1", eval("p $h.length"));
assertEquals("false", eval("p $h.empty?"));
assertEquals("true", eval("p Hash.new().empty?"));
}
/**
* Hash#each, Hash#each_pair, Hash#each_value, Hash#each_key
*/
public void testIterating() throws Exception {
assertEquals("[\"foo\", \"bar\"]", eval("$h.each {|pair| p pair}"));
assertEquals("{\"foo\"=>\"bar\"}", eval("p $h.each {|pair| }"));
assertTrue(eval("$h.each_pair {|pair| p pair}").indexOf("[\"foo\", \"bar\"]") != -1);
assertTrue(eval("p $h.each_pair {|pair| }").indexOf("{\"foo\"=>\"bar\"}") != -1);
assertEquals("\"foo\"", eval("$h.each_key {|k| p k}"));
assertEquals("{\"foo\"=>\"bar\"}", eval("p $h.each_key {|k| }"));
assertEquals("\"bar\"", eval("$h.each_value {|v| p v}"));
assertEquals("{\"foo\"=>\"bar\"}", eval("p $h.each_value {|v| }"));
}
/**
* Hash#delete, Hash#delete_if, Hash#reject, Hash#reject!
*/
public void testDeleting() throws Exception {
eval("$delete_h = {1=>2,3=>4}");
assertEquals("2", eval("p $delete_h.delete(1)"));
assertEquals("{3=>4}", eval("p $delete_h"));
assertEquals("nil", eval("p $delete_h.delete(100)"));
assertEquals("100", eval("$delete_h.delete(100) {|x| p x }"));
eval("$delete_h = {1=>2,3=>4,5=>6}");
assertEquals("{1=>2}", eval("p $delete_h.delete_if {|k,v| k >= 3}"));
assertEquals("{1=>2}", eval("p $delete_h"));
eval("$delete_h.clear");
assertEquals("{}", eval("p $delete_h"));
eval("$delete_h = {1=>2,3=>4,5=>6}");
assertEquals("{1=>2}", eval("p $delete_h.reject {|k,v| k >= 3}"));
assertEquals("3", eval("p $delete_h.size"));
eval("$delete_h = {1=>2,3=>4,5=>6}");
eval("p $delete_h");
assertEquals("{1=>2}", eval("p $delete_h.reject! {|k,v| k >= 3}"));
assertEquals("1", eval("p $delete_h.size"));
assertEquals("nil", eval("p $delete_h.reject! {|k,v| false}"));
}
/**
* Hash#default, Hash#default=
*/
public void testDefault() throws Exception {
assertEquals("nil", eval("p $h['njet']"));
assertEquals("nil", eval("p $h.default"));
eval("$h.default = 'missing'");
assertEquals("\"missing\"", eval("p $h['njet']"));
assertEquals("\"missing\"", eval("p $h.default"));
}
/**
* Hash#sort, Hash#invert
*/
public void testRestructuring() throws Exception {
eval("$h_sort = {\"a\"=>20,\"b\"=>30,\"c\"=>10}");
assertEquals("[[\"a\", 20], [\"b\", 30], [\"c\", 10]]",
eval("p $h_sort.sort"));
assertEquals("[[\"c\", 10], [\"a\", 20], [\"b\", 30]]",
eval("p $h_sort.sort {|a,b| a[1]<=>b[1]}"));
eval("$h_invert = {\"n\"=>100,\"y\"=>300,\"d\"=>200,\"a\"=>0}");
assertEquals("[[0, \"a\"], [100, \"n\"], [200, \"d\"], [300, \"y\"]]",
eval("p $h_invert.invert.sort"));
}
public void testGet() {
RubyHash rubyHash = new RubyHash(Ruby.getGlobalRuntime());
assertEquals(null, rubyHash.get("Non matching key"));
}
}