erik/cryptoprice
erik/cryptoprice
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Implemented buyPrice and sellPrice. Closes #1

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This commit is contained in:
Erik C. Thauvin 2022-08-29 19:21:44 -07:00
parent c046cd7341
commit bef4b2ee20
18 changed files with 152 additions and 98 deletions
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33
src/main/kotlin/net/thauvin/erik/crypto/CryptoPrice.kt
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@ -42,11 +42,10 @@ import java.io.IOException
import java.math.BigDecimal
import java.text.NumberFormat
import java.time.LocalDate
import java.util.Currency
import java.util.Locale
import java.util.*
/**
* Retrieves and holds a cryptocurrency current spot price.
* Retrieves and holds a cryptocurrency price.
*
* @constructor Constructs a new [CryptoPrice] object.
*
@ -116,6 +115,19 @@ open class CryptoPrice(val base: String, val currency: String, val amount: BigDe
}
}
/**
* Retrieves the buy price.
*
* @param base The cryptocurrency ticker symbol, such as `BTC`, `ETH`, `LTC`, etc.
* @param currency The fiat currency ISO 4217 code, such as `USD`, `GPB`, `EUR`, etc.
*/
@JvmStatic
@JvmOverloads
@Throws(CryptoException::class, IOException::class)
fun buyPrice(base: String, currency: String = "USD"): CryptoPrice {
return apiCall(listOf("prices", "$base-$currency", "buy"), emptyMap()).toPrice()
}
/**
* Prints the current prices for the specified cryptocurrencies.
*/
@ -129,7 +141,20 @@ open class CryptoPrice(val base: String, val currency: String, val amount: BigDe
}
/**
* Retrieves the current spot price.
* Retrieves the sell price.
*
* @param base The cryptocurrency ticker symbol, such as `BTC`, `ETH`, `LTC`, etc.
* @param currency The fiat currency ISO 4217 code, such as `USD`, `GPB`, `EUR`, etc.
*/
@JvmStatic
@JvmOverloads
@Throws(CryptoException::class, IOException::class)
fun sellPrice(base: String, currency: String = "USD"): CryptoPrice {
return apiCall(listOf("prices", "$base-$currency", "sell"), emptyMap()).toPrice()
}
/**
* Retrieves the spot price.
*
* @param base The cryptocurrency ticker symbol, such as `BTC`, `ETH`, `LTC`, etc.
* @param currency The fiat currency ISO 4217 code, such as `USD`, `GPB`, `EUR`, etc.

40
src/test/kotlin/net/thauvin/erik/crypto/CryptoPriceTest.kt
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@ -33,11 +33,13 @@
package net.thauvin.erik.crypto
import net.thauvin.erik.crypto.CryptoPrice.Companion.apiCall
import net.thauvin.erik.crypto.CryptoPrice.Companion.buyPrice
import net.thauvin.erik.crypto.CryptoPrice.Companion.sellPrice
import net.thauvin.erik.crypto.CryptoPrice.Companion.spotPrice
import net.thauvin.erik.crypto.CryptoPrice.Companion.toPrice
import org.json.JSONObject
import java.time.LocalDate
import java.util.Locale
import java.util.*
import kotlin.test.Test
import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
@ -54,28 +56,34 @@ class CryptoPriceTest {
@Test
@Throws(CryptoException::class)
fun testBitcoinPrice() {
val price = spotPrice("BTC")
assertEquals("BTC", price.base, "BTC")
assertEquals("USD", price.currency, "is USD")
assertTrue(price.amount.signum() > 0, "BTC > 0")
val prices = listOf(spotPrice("BTC"), buyPrice("BTC"), sellPrice("BTC"))
for (price in prices) {
assertEquals("BTC", price.base, "BTC")
assertEquals("USD", price.currency, "is USD")
assertTrue(price.amount.signum() > 0, "BTC > 0")
}
}
@Test
@Throws(CryptoException::class)
fun testEtherPrice() {
val price = spotPrice("ETH", "EUR")
assertEquals("ETH", price.base, "ETH")
assertEquals("EUR", price.currency, "is EUR")
assertTrue(price.amount.signum() > 0, "ETH > 0")
val prices = listOf(spotPrice("ETH", "EUR"), buyPrice("ETH", "EUR"), sellPrice("ETH", "EUR"))
for (price in prices) {
assertEquals("ETH", price.base, "ETH")
assertEquals("EUR", price.currency, "is EUR")
assertTrue(price.amount.signum() > 0, "ETH > 0")
}
}
@Test
@Throws(CryptoException::class)
fun testLitecoinPrice() {
val price = spotPrice("LTC", "GBP")
assertEquals("LTC", price.base, "LTC")
assertEquals("GBP", price.currency, "is GBP")
assertTrue(price.amount.signum() > 0, "LTC > 0")
val prices = listOf(spotPrice("LTC", "GBP"), buyPrice("LTC", "GBP"), sellPrice("LTC", "GBP"))
for (price in prices) {
assertEquals("LTC", price.base, "LTC")
assertEquals("GBP", price.currency, "is GBP")
assertTrue(price.amount.signum() > 0, "LTC > 0")
}
}
@Test
@ -102,7 +110,7 @@ class CryptoPriceTest {
@Test
@Throws(CryptoException::class)
fun testSpotPrice() {
fun testPrices() {
assertFailsWith(
message = "FOO did not fail",
exceptionClass = CryptoException::class,
@ -112,11 +120,11 @@ class CryptoPriceTest {
assertFailsWith(
message = "BAR did not fail",
exceptionClass = CryptoException::class,
block = { spotPrice("BTC", "BAR") }
block = { buyPrice("BTC", "BAR") }
)
try {
spotPrice("FOOBAR")
sellPrice("FOOBAR")
} catch (e: CryptoException) {
assertNotEquals(400, e.statusCode, "FOOBAR status code is not 400")
}