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Merge pull request #81 from hossain-khan/add-number-formatter
[ADDED] Text number formatter for 2 decimal formatting.
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13 changes: 13 additions & 0 deletions
13
app/src/main/java/dev/hossain/weatheralert/util/TextFormatter.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| package dev.hossain.weatheralert.util | ||
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| import java.util.Locale | ||
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| /** | ||
| * Formats 2.440923834343 to 2.44 cm | ||
| */ | ||
| internal fun Float.formatUnit(unit: String): String = "%.2f %s".format(Locale.getDefault(), this, unit) | ||
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| /** | ||
| * Formats 8.98237320 to 8.98 mm | ||
| */ | ||
| internal fun Double.formatUnit(unit: String): String = "%.2f %s".format(Locale.getDefault(), this, unit) |
70 changes: 70 additions & 0 deletions
70
app/src/test/java/dev/hossain/weatheralert/util/TextFormatterTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| package dev.hossain.weatheralert.util | ||
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| import org.junit.Assert.assertEquals | ||
| import org.junit.Test | ||
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| class TextFormatterTest { | ||
| @Test | ||
| fun formatUnit_handlesFloatValue() { | ||
| val value = 2.440923834343f | ||
| val unit = "cm" | ||
| val expected = "2.44 cm" | ||
| assertEquals(expected, value.formatUnit(unit)) | ||
| } | ||
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| @Test | ||
| fun formatUnit_handlesDoubleValue() { | ||
| val value = 8.98237320 | ||
| val unit = "mm" | ||
| val expected = "8.98 mm" | ||
| assertEquals(expected, value.formatUnit(unit)) | ||
| } | ||
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| @Test | ||
| fun formatUnit_handlesZeroFloatValue() { | ||
| val value = 0.0f | ||
| val unit = "cm" | ||
| val expected = "0.00 cm" | ||
| assertEquals(expected, value.formatUnit(unit)) | ||
| } | ||
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| @Test | ||
| fun formatUnit_handlesZeroDoubleValue() { | ||
| val value = 0.0 | ||
| val unit = "mm" | ||
| val expected = "0.00 mm" | ||
| assertEquals(expected, value.formatUnit(unit)) | ||
| } | ||
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| @Test | ||
| fun formatUnit_handlesNegativeFloatValue() { | ||
| val value = -2.440923834343f | ||
| val unit = "cm" | ||
| val expected = "-2.44 cm" | ||
| assertEquals(expected, value.formatUnit(unit)) | ||
| } | ||
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| @Test | ||
| fun formatUnit_handlesNegativeDoubleValue() { | ||
| val value = -8.98237320 | ||
| val unit = "mm" | ||
| val expected = "-8.98 mm" | ||
| assertEquals(expected, value.formatUnit(unit)) | ||
| } | ||
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| @Test | ||
| fun formatUnit_handlesLargeFloatValue() { | ||
| val value = 123456.78923f | ||
| val unit = "cm" | ||
| val expected = "123456.79 cm" | ||
| assertEquals(expected, value.formatUnit(unit)) | ||
| } | ||
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| @Test | ||
| fun formatUnit_handlesLargeDoubleValue() { | ||
| val value = 987654.321 | ||
| val unit = "mm" | ||
| val expected = "987654.32 mm" | ||
| assertEquals(expected, value.formatUnit(unit)) | ||
| } | ||
| } |