Revert "BAEL-4134"

2020-07-07 14:18:10 +03:00
parent 4a35b97bad
commit 7ab2f437ee
2466 changed files with 9477 additions and 479200 deletions
@@ -0,0 +1,82 @@
+package com.baeldung.formatNumber;
+
+import org.junit.Test;
+
+import java.util.Locale;
+
+import static com.baeldung.formatNumber.FormatNumber.*;
+import static org.assertj.core.api.Assertions.*;
+
+public class FormatNumberUnitTest {
+    private static final double D = 4.2352989244d;
+    private static final double F = 8.6994540927d;
+
+    @Test
+    public void givenDecimalNumber_whenFormatNumberWithBigDecimal_thenGetExpectedResult() {
+        assertThat(withBigDecimal(D, 2)).isEqualTo(4.24);
+        assertThat(withBigDecimal(D, 3)).isEqualTo(4.235);
+        assertThat(withBigDecimal(F, 2)).isEqualTo(8.7);
+        assertThat(withBigDecimal(F, 3)).isEqualTo(8.699);
+    }
+
+    @Test
+    public void givenDecimalNumber_whenFormatNumberWithDecimalFormat_thenGetExpectedResult() {
+        assertThat(withDecimalFormatLocal(D)).isEqualTo(4.235);
+        assertThat(withDecimalFormatLocal(F)).isEqualTo(8.699);
+
+        assertThat(withDecimalFormatPattern(D, 2)).isEqualTo(4.24);
+        assertThat(withDecimalFormatPattern(D, 3)).isEqualTo(4.235);
+        assertThat(withDecimalFormatPattern(F, 2)).isEqualTo(8.7);
+        assertThat(withDecimalFormatPattern(F, 3)).isEqualTo(8.699);
+    }
+
+    @Test
+    public void givenDecimalNumber_whenFormatNumberWithStringFormat_thenGetExpectedResult() {
+        assertThat(withStringFormat(D, 2)).isEqualTo("4.24");
+        assertThat(withStringFormat(D, 3)).isEqualTo("4.235");
+        assertThat(withStringFormat(F, 2)).isEqualTo("8.70");
+        assertThat(withStringFormat(F, 3)).isEqualTo("8.699");
+    }
+
+    @Test
+    public void givenDecimalNumber_whenFormatNumberWithMathRound_thenGetExpectedResult() {
+        assertThat(withMathRound(D, 2)).isEqualTo(4.24);
+        assertThat(withMathRound(D, 3)).isEqualTo(4.235);
+        assertThat(withMathRound(F, 2)).isEqualTo(8.7);
+        assertThat(withMathRound(F, 3)).isEqualTo(8.699);
+    }
+
+    @Test
+    public void givenIntegerNumber_whenFormatNumberByPaddingOutZeros_thenGetExpectedResult() {
+        int value = 1;
+        assertThat(byPaddingZeros(value, 3)).isEqualTo("001");
+    }
+
+    @Test
+    public void givenIntegerNumber_whenFormatNumberWithTwoDecimalPlaces_thenGetExpectedResult() {
+        int value = 12;
+        assertThat(withTwoDecimalPlaces(value)).isEqualTo(12.00);
+    }
+
+    @Test
+    public void givenIntegerNumber_whenFormatNumberWithLargeIntegers_thenGetExpectedResult() {
+        int value = 123456789;
+        assertThat(withLargeIntegers(value)).isEqualTo("123,456,789");
+    }
+
+    @Test
+    public void givenDecimalNumber_whenFormatNumberForPercentages_thenGetExpectedResult() {
+        double value = 25f / 100f;
+        assertThat(forPercentages(value, new Locale("en", "US"))).isEqualTo("25%");
+        assertThat(forPercentages(value, new Locale("pl", "PL"))).isEqualTo("25%");
+    }
+
+    @Test
+    public void givenCurrency_whenFormatNumberCurrencyWithChosenLocalisation_thenGetExpectedResult() {
+        double value = 23_500;
+        assertThat(currencyWithChosenLocalisation(value, new Locale("en", "US"))).isEqualTo("$23,500.00");
+        assertThat(currencyWithChosenLocalisation(value, new Locale("zh", "CN"))).isEqualTo("￥23,500.00");
+        assertThat(currencyWithChosenLocalisation(value, new Locale("pl", "PL"))).isEqualTo("23 500 zł");
+    }
+
+}