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src/commonTest/kotlin/uk/gov/hmrc/FirstBonusTermCalculationTest.kt
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| /* | ||
| * Copyright 2020 HM Revenue & Customs | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package uk.gov.hmrc | ||
|
|
||
| import kotlin.test.Test | ||
| import kotlin.test.assertEquals | ||
| import uk.gov.hmrc.helptosavecalculator.FirstBonusTermCalculation | ||
| import uk.gov.hmrc.helptosavecalculator.models.FirstBonusInput | ||
| import uk.gov.hmrc.helptosavecalculator.models.YearMonthDayInput | ||
|
|
||
| class FirstBonusTermCalculationTest { | ||
|
|
||
| @Test | ||
| fun `GIVEN calculateTotalProjectedSavingsIncludeBonuses called THEN return the total`() { | ||
| val valueOne = 1.0 | ||
| val valueTwo = 2.0 | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateTotalProjectedSavingsIncludeBonuses(valueOne, valueTwo) | ||
|
|
||
| assertEquals(3.0, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN regular payment is above paid in this month WHEN calculateAdditionalSavingsThisMonth called THEN return the total`() { | ||
| val input = FirstBonusInput(50.0, | ||
| 25.0, | ||
| 25.0, | ||
| YearMonthDayInput(2020, 3), | ||
| YearMonthDayInput(2022, 2, 28), | ||
| YearMonthDayInput(2024, 2, 28), | ||
| 50.0) | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateAdditionalSavingsThisMonth(input) | ||
|
|
||
| assertEquals(25.0, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN regular payment is below paid in this month WHEN calculateAdditionalSavingsThisMonth called THEN return zero`() { | ||
| val input = FirstBonusInput(25.0, | ||
| 25.0, | ||
| 50.0, | ||
| YearMonthDayInput(2020, 3), | ||
| YearMonthDayInput(2022, 2, 28), | ||
| YearMonthDayInput(2024, 2, 28), | ||
| 50.0) | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateAdditionalSavingsThisMonth(input) | ||
|
|
||
| assertEquals(0.0, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN calculateTotalProjectedSavings called THEN return the total`() { | ||
| val input = FirstBonusInput(25.0, | ||
| 25.0, | ||
| 50.0, | ||
| YearMonthDayInput(2020, 3), | ||
| YearMonthDayInput(2022, 2, 28), | ||
| YearMonthDayInput(2024, 2, 28), | ||
| 50.0) | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateTotalProjectedSavings(input, 2.0, 10) | ||
|
|
||
| assertEquals(277.0, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN calculateTotalProjectedBonuses called THEN return the total`() { | ||
| val valueOne = 1.0 | ||
| val valueTwo = 2.0 | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateTotalProjectedBonuses(valueOne, valueTwo) | ||
|
|
||
| assertEquals(3.0, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN calculateProjectedSavingsFirstBonusPeriod called THEN return the total`() { | ||
| val input = FirstBonusInput(25.0, | ||
| 25.0, | ||
| 50.0, | ||
| YearMonthDayInput(2020, 3), | ||
| YearMonthDayInput(2022, 2, 28), | ||
| YearMonthDayInput(2024, 2, 28), | ||
| 50.0) | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateProjectedSavingsFirstBonusPeriod(input, 2.0, 10) | ||
|
|
||
| assertEquals(277.0, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN balanceMustBeMoreThanForBonus is above projectedSavingsFirstBonusPeriod WHEN calculateHighestBalanceFirstBonusPeriod called THEN return balanceMustBeMoreThanForBonus`() { | ||
| val input = FirstBonusInput(25.0, | ||
| 25.0, | ||
| 50.0, | ||
| YearMonthDayInput(2020, 3), | ||
| YearMonthDayInput(2022, 2, 28), | ||
| YearMonthDayInput(2024, 2, 28), | ||
| 50.0) | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateHighestBalanceFirstBonusPeriod(input, 2.0) | ||
|
|
||
| assertEquals(50.0, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN balanceMustBeMoreThanForBonus is below projectedSavingsFirstBonusPeriod WHEN calculateHighestBalanceFirstBonusPeriod called THEN return projectedSavingsFirstBonusPeriod`() { | ||
| val input = FirstBonusInput(25.0, | ||
| 25.0, | ||
| 50.0, | ||
| YearMonthDayInput(2020, 3), | ||
| YearMonthDayInput(2022, 2, 28), | ||
| YearMonthDayInput(2024, 2, 28), | ||
| 1.0) | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateHighestBalanceFirstBonusPeriod(input, 2.0) | ||
|
|
||
| assertEquals(2.0, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN calculateProjectedFirstBonus called THEN return the total`() { | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateProjectedFirstBonus(10.0) | ||
|
|
||
| assertEquals(5.0, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN calculateProjectedAdditionalSavingsFinalBonusPeriod called THEN return the total`() { | ||
| val input = FirstBonusInput(10.0, | ||
| 25.0, | ||
| 50.0, | ||
| YearMonthDayInput(2020, 3), | ||
| YearMonthDayInput(2022, 2, 28), | ||
| YearMonthDayInput(2024, 2, 28), | ||
| 1.0) | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateProjectedAdditionalSavingsFinalBonusPeriod(input) | ||
|
|
||
| assertEquals(240.0, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN highestBalanceFinalBonusPeriod is above highestBalanceFirstBonusPeriod WHEN calculateProjectedFinalBonus called THEN return the total`() { | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateProjectedFinalBonus(10.0, 5.0) | ||
|
|
||
| assertEquals(2.5, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN highestBalanceFinalBonusPeriod is below highestBalanceFirstBonusPeriod WHEN calculateProjectedFinalBonus called THEN return zero`() { | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateProjectedFinalBonus(5.0, 10.0) | ||
|
|
||
| assertEquals(0.0, result) | ||
| } | ||
|
|
||
| @Test | ||
| fun `GIVEN calculateMonthsLeftInScheme called THEN return the remaining months left in scheme`() { | ||
| val input = FirstBonusInput(10.0, | ||
| 25.0, | ||
| 50.0, | ||
| YearMonthDayInput(2020, 3), | ||
| YearMonthDayInput(2022, 2, 28), | ||
| YearMonthDayInput(2024, 2, 28), | ||
| 1.0) | ||
| val calculation = FirstBonusTermCalculation() | ||
| val result = calculation.calculateMonthsLeftInScheme(input) | ||
|
|
||
| assertEquals(Pair(47, 23), result) | ||
| } | ||
| } |
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