languages2_1 := []*Language{
		{Code: "language-slice-replace-1-1", Name: "language-slice-replace-1-1"},
		{Code: "language-slice-replace-1-2", Name: "language-slice-replace-1-2"},
	}
	languages2_2 := []*Language{
		{Code: "language-slice-replace-2-1", Name: "language-slice-replace-2-1"},
		{Code: "language-slice-replace-2-2", Name: "language-slice-replace-2-2"},
	}

      """
      |--simple boundary
      |
      |abcd
      |--simple boundary
      |
      |efgh
      |--simple boundary--
      """.trimMargin()
        .replace("\n", "\r\n")
        .replace(Regex("(?m)abcd\r\n"), "abcd\n")

    val parts =
      MultipartReader(
        boundary = "simple boundary",
        source = Buffer().writeUtf8(multipart),
      )

	)

	AssertAssociationCount(t, users, "Pets", 10, "After Append")

	// Replace -> same as append
	DB.Model(&users).Association("Pets").Replace(
		[]*Pet{{Name: "pet-slice-replace-1-1"}, {Name: "pet-slice-replace-1-2"}},
		[]*Pet{{Name: "pet-slice-replace-2-1"}, {Name: "pet-slice-replace-2-2"}},
		&Pet{Name: "pet-slice-replace-3"},
	)

	AssertAssociationCount(t, users, "Pets", 5, "After Append")

	// Delete

		t.Fatalf("Preload many2many relations")
	}

	// Replace
	tag5 := &Tag{Locale: "ZH", Value: "tag5"}
	tag6 := &Tag{Locale: "ZH", Value: "tag6"}
	DB.Model(&blog).Association("Tags").Replace(tag5, tag6)
	var tags2 []Tag
	DB.Model(&blog).Association("Tags").Find(&tags2)
	if !compareTags(tags2, []string{"tag5", "tag6"}) {
		t.Fatalf("Should find 2 tags after Replace")
	}

	if DB.Model(&blog).Association("Tags").Count() != 2 {

    }
  }

  @Test
  fun singlePart() {
    val expected =
      """
      |--123
      |
      |Hello, World!
      |--123--
      |
      """.trimMargin().replace("\n", "\r\n")
    val body =
      MultipartBody
        .Builder("123")
        .addPart("Hello, World!".toRequestBody(null))
        .build()
    assertThat(body.boundary).isEqualTo("123")

            "-PgitUserEmail=******@****.***"
            $pluginPortalUrlOverride
            -DenablePredictiveTestSelection=false
            %additional.gradle.parameters%
            """.trimIndent().replace("\n", " ")

        val checkReady = gradleStep(steps, 0)
        checkReady.assertTasks("prepReleaseNightly checkNeedToPromote")
        assertEquals(expectedGradleParams, checkReady.gradleParams)

	}
	AssertAssociationCount(t, user, "Languages", 1, "before replace")

	// Replace with a new map value
	if err := DB.Model(&user).Association("Languages").Replace(map[string]interface{}{
		"code": "rm2m_map_1", "name": "ReplaceMap1",
	}); err != nil {
		t.Fatalf("replace map: %v", err)
	}
	AssertAssociationCount(t, user, "Languages", 1, "after replace with 1 map")

	var langs []Language

    long newValue = random.nextInt(MAX_ADDEND);
    for (int i = 0; i < ITERATIONS; i++) {
      long before = map.get(key);
      assertFalse(map.replace(key, before + 1, newValue + 1));
      assertFalse(map.replace(key, before - 1, newValue - 1));
      assertTrue(map.replace(key, before, newValue));
      long after = map.get(key);
      assertEquals(newValue, after);
      newValue += newValue;
    }

    assertThat(map.get(three)).isSameInstanceAs(one);
    assertThat(map.replace(one, three)).isSameInstanceAs(two);
    assertThat(map.get(one)).isSameInstanceAs(three);
    assertThat(map.replace(one, two, three)).isFalse();
    assertThat(map.get(one)).isSameInstanceAs(three);
    assertThat(map.replace(one, three, two)).isTrue();
    assertThat(map.get(one)).isSameInstanceAs(two);
    assertThat(map).hasSize(3);

    cache.put(10, 100);
    cache.put(2, 52);

    asMap.replace(2, 79);
    asMap.replace(3, 60);

    assertThat(cache.getIfPresent(3)).isNull();
    assertThat(asMap.get(3)).isNull();

    assertThat(cache.getIfPresent(2)).isEqualTo(79);
    assertThat(asMap.get(2)).isEqualTo(79);

    asMap.replace(10, 100, 50);
    asMap.replace(2, 52, 99);

    assertThat(cache.getIfPresent(10)).isEqualTo(50);