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82 changes: 82 additions & 0 deletions
82
RadixWalletTests/Clients/TokenPriceCientTests/TokenPriceCientTests.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| @testable import Radix_Wallet_Dev | ||
| import XCTest | ||
|
|
||
| final class TokenPriceCientTests: XCTestCase { | ||
| func test_zeroPrice() { | ||
| validateDecimalPriceConversion(0, expected: .zero()) | ||
| } | ||
|
|
||
| func test_noDecimalPlaces_1() { | ||
| validateDecimalPriceConversion(10, expected: 10) | ||
| } | ||
|
|
||
| func test_noDecimalPlaces_2() { | ||
| validateDecimalPriceConversion(10000, expected: 10000) | ||
| } | ||
|
|
||
| func test_noDecimalPlaces_3() { | ||
| validateDecimalPriceConversion(10_000_000, expected: 10_000_000) | ||
| } | ||
|
|
||
| func test_withDecimalPlaces_1() { | ||
| validateDecimalPriceConversion(1.99, expected: try! .init(value: "1.99")) | ||
| } | ||
|
|
||
| func test_withDecimalPlaces_2() { | ||
| validateDecimalPriceConversion(1.000099, expected: try! .init(value: "1.000099")) | ||
| } | ||
|
|
||
| func test_belowOne_1() { | ||
| validateDecimalPriceConversion(0.99, expected: 0.99) | ||
| } | ||
|
|
||
| func test_belowOne_2() { | ||
| validateDecimalPriceConversion(0.000099, expected: try! .init(value: "0.000099")) | ||
| } | ||
|
|
||
| // NOTE: All of the below values would be rounded to 14 decimal places | ||
| // As it seems that Swift number formatter for Double cannot express more decimals. | ||
| func test_closeToRETDecimalDivisibility() { | ||
| // 17 decimal places | ||
| validateDecimalPriceConversion(1.12345678901234567, expected: try! .init(value: "1.12345678901235")) | ||
| } | ||
|
|
||
| func test_maxRETDecimalDivisibility() { | ||
| // 18 decimal places | ||
| validateDecimalPriceConversion(1.123456789012345678, expected: try! .init(value: "1.12345678901235")) | ||
| } | ||
|
|
||
| func test_overMaxRETDecimalDivisibility() { | ||
| // 22 decimal places | ||
| validateDecimalPriceConversion(1.1234567890123456789012, expected: try! .init(value: "1.12345678901235")) | ||
| } | ||
|
|
||
| private func validateDecimalPriceConversion( | ||
| _ price: Double, | ||
| expected: RETDecimal, | ||
| file: StaticString = #filePath, | ||
| line: UInt = #line | ||
| ) { | ||
| let tokenPrice = tokenWithPrice(price) | ||
| guard let decimalPrice = TokenPricesClient.TokenPrices(tokenPrice).first?.value else { | ||
| XCTFail("Could'nt convert \(tokenPrice) to RETDecimal", file: file, line: line) | ||
| return | ||
| } | ||
| XCTAssertEqual( | ||
| decimalPrice, | ||
| expected, | ||
| "expected \(expected.formattedPlain()), got \(decimalPrice.formattedPlain())", | ||
| file: file, | ||
| line: line | ||
| ) | ||
| } | ||
|
|
||
| private func tokenWithPrice(_ price: Double) -> TokensPriceResponse { | ||
| TokensPriceResponse(tokens: [ | ||
| TokensPriceResponse.TokenPrice( | ||
| resourceAddress: try! .init(validatingAddress: "resource_rdx1tknxxxxxxxxxradxrdxxxxxxxxx009923554798xxxxxxxxxradxrd"), | ||
| price: price | ||
| ), | ||
| ]) | ||
| } | ||
| } |