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Improve formatting of numbers by adding grouping separators and limiting the number of fractional digits

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This commit is contained in:
Terry Yiu
2025-03-30 09:47:00 -04:00
parent 5cd4d9189b
commit 82dbf16466
4 changed files with 176 additions and 69 deletions
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54
Tests/SatsPriceTests/SatsViewModelTests.swift
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@@ -16,8 +16,9 @@ final class SatsViewModelTests: XCTestCase {
let currency = Locale.Currency("USD")
func testSatsViewModel() {
let satsViewModel = SatsViewModel()
func testSatsViewModel() throws {
let satsPriceModel = try XCTUnwrap(SatsPriceModel(url: nil))
let satsViewModel = SatsViewModel(model: satsPriceModel)
satsViewModel.btcToCurrencyString(for: currency).wrappedValue = "54321"
// Test BTC updates.
@@ -32,8 +33,8 @@ final class SatsViewModelTests: XCTestCase {
XCTAssertEqual(satsViewModel.currencyValue(for: currency), Decimal("54321"))
#endif
XCTAssertEqual(satsViewModel.btcString, "1")
XCTAssertEqual(satsViewModel.satsString, "100000000")
XCTAssertEqual(satsViewModel.currencyValueString(for: currency).wrappedValue, "54321")
XCTAssertEqual(satsViewModel.satsString, "100,000,000")
XCTAssertEqual(satsViewModel.currencyValueString(for: currency).wrappedValue, "54,321.00")
// Test Sats updates.
satsViewModel.satsString = "200000000"
@@ -47,8 +48,8 @@ final class SatsViewModelTests: XCTestCase {
XCTAssertEqual(satsViewModel.currencyValue(for: currency), Decimal("108642"))
#endif
XCTAssertEqual(satsViewModel.btcString, "2")
XCTAssertEqual(satsViewModel.satsString, "200000000")
XCTAssertEqual(satsViewModel.currencyValueString(for: currency).wrappedValue, "108642")
XCTAssertEqual(satsViewModel.satsString, "200,000,000")
XCTAssertEqual(satsViewModel.currencyValueString(for: currency).wrappedValue, "108,642.00")
// Test currency value updates.
satsViewModel.currencyValueString(for: currency).wrappedValue = "162963"
@@ -62,44 +63,43 @@ final class SatsViewModelTests: XCTestCase {
XCTAssertEqual(satsViewModel.currencyValue(for: currency), Decimal("162963"))
#endif
XCTAssertEqual(satsViewModel.btcString, "3")
XCTAssertEqual(satsViewModel.satsString, "300000000")
XCTAssertEqual(satsViewModel.currencyValueString(for: currency).wrappedValue, "162963")
XCTAssertEqual(satsViewModel.satsString, "300,000,000")
XCTAssertEqual(satsViewModel.currencyValueString(for: currency).wrappedValue, "162,963.00")
// Test fractional amounts.
// Precision between platforms on this calculation is different so we have different assertions for each.
satsViewModel.currencyValueString(for: currency).wrappedValue = "1"
#if !SKIP
XCTAssertEqual(satsViewModel.btc, Decimal(string: "0.00001840908672520756245282671526665562"))
XCTAssertEqual(satsViewModel.btcString, "0.00001840908672520756245282671526665562")
XCTAssertEqual(satsViewModel.sats, Decimal(string: "1840.908672520756245282671526665562"))
XCTAssertEqual(satsViewModel.satsString, "1840.908672520756245282671526665562")
XCTAssertEqual(satsViewModel.btc, Decimal(string: "0.00001841"))
XCTAssertEqual(satsViewModel.btcString, "0.00001841")
XCTAssertEqual(satsViewModel.sats, Decimal(string: "1841"))
XCTAssertEqual(satsViewModel.satsString, "1,841")
XCTAssertEqual(satsViewModel.currencyValue(for: currency), Decimal(string: "1"))
#else
XCTAssertEqual(satsViewModel.btc, Decimal("0.00001840908672520756"))
XCTAssertEqual(satsViewModel.btcString, "0.00001840908672520756")
XCTAssertEqual(satsViewModel.sats, Decimal("1840.908672520756"))
XCTAssertEqual(satsViewModel.satsString, "1840.908672520756")
XCTAssertEqual(satsViewModel.btc, Decimal("0.00001841"))
XCTAssertEqual(satsViewModel.btcString, "0.00001841")
XCTAssertEqual(satsViewModel.sats, Decimal("1841"))
XCTAssertEqual(satsViewModel.satsString, "1,841")
XCTAssertEqual(satsViewModel.currencyValue(for: currency), Decimal("1"))
#endif
XCTAssertEqual(satsViewModel.currencyValueString(for: currency).wrappedValue, "1")
XCTAssertEqual(satsViewModel.currencyValueString(for: currency).wrappedValue, "1.00")
// Test large amounts that exceed the cap of 21M BTC.
// Precision between platforms on this calculation is different so we have different assertions for each.
satsViewModel.currencyValueString(for: currency).wrappedValue = "11407419999999"
#if !SKIP
XCTAssertEqual(satsViewModel.btc, Decimal(string: "210000184.09084884298889932070469983984"))
XCTAssertEqual(satsViewModel.btcString, "210000184.09084884298889932070469983984")
XCTAssertEqual(satsViewModel.sats, Decimal(string: "21000018409084884.298889932070469983984"))
XCTAssertEqual(satsViewModel.satsString, "21000018409084884.298889932070469983984")
XCTAssertEqual(satsViewModel.btc, Decimal(string: "210000184.09084884"))
XCTAssertEqual(satsViewModel.btcString, "210,000,184.09084884")
XCTAssertEqual(satsViewModel.sats, Decimal(string: "21000018409084884"))
XCTAssertEqual(satsViewModel.satsString, "21,000,018,409,084,884")
XCTAssertEqual(satsViewModel.currencyValue(for: currency), Decimal(string: "11407419999999"))
#else
XCTAssertEqual(satsViewModel.btc, Decimal("210000184.0908488429888993207"))
XCTAssertEqual(satsViewModel.btcString, "210000184.0908488429888993207")
XCTAssertEqual(satsViewModel.sats, Decimal("21000018409084884.29888993207"))
XCTAssertEqual(satsViewModel.satsString, "21000018409084884.29888993207")
XCTAssertEqual(satsViewModel.btc, Decimal("210000184.09084884"))
XCTAssertEqual(satsViewModel.btcString, "210000184.09084884")
XCTAssertEqual(satsViewModel.sats, Decimal("21000018409084884"))
XCTAssertEqual(satsViewModel.satsString, "21000018409084884")
XCTAssertEqual(satsViewModel.currencyValue, Decimal("11407419999999"))
#endif
XCTAssertEqual(satsViewModel.currencyValueString(for: currency).wrappedValue, "11407419999999")
XCTAssertEqual(satsViewModel.currencyValueString(for: currency).wrappedValue, "11,407,419,999,999.00")
}
}