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Fix file size formatter output on API 26+

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This commit is contained in:
Benoit Marty
2025-12-17 16:14:11 +01:00
committed by Benoit Marty
parent 1b4cf477c7
commit 9e00ca323d
2 changed files with 37 additions and 20 deletions
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7
libraries/androidutils/src/main/kotlin/io/element/android/libraries/androidutils/filesize/AndroidFileSizeFormatter.kt
View File

@@ -24,12 +24,15 @@ class AndroidFileSizeFormatter(
override fun format(fileSize: Long, useShortFormat: Boolean): String {
// Since Android O, the system considers that 1kB = 1000 bytes instead of 1024 bytes.
// We want to avoid that.
// Sadly we do not have access to the flags values Formatter.FLAG_IEC_UNITS and Formatter.FLAG_SHORTER
// nor the method Formatter.formatFileSize with the flags parameter.
// So for Android 0 and more, first convert the fileSize to MB/GB/TB ourselves
val normalizedSize = if (sdkIntProvider.get() <= Build.VERSION_CODES.N) {
fileSize
} else {
// First convert the size
when {
fileSize < 1024 -> fileSize
fileSize <= 1 -> fileSize
fileSize < 1024 * 1024 -> fileSize * 1000 / 1024
fileSize < 1024 * 1024 * 1024 -> fileSize * 1000 / 1024 * 1000 / 1024
else -> fileSize * 1000 / 1024 * 1000 / 1024 * 1000 / 1024
@@ -40,6 +43,6 @@ class AndroidFileSizeFormatter(
Formatter.formatShortFileSize(context, normalizedSize)
} else {
Formatter.formatFileSize(context, normalizedSize)
}
}.replace("kB", "KB")
}
}

50
libraries/androidutils/src/test/kotlin/io/element/android/libraries/androidutils/filesize/AndroidFileSizeFormatterTest.kt
View File

@@ -15,45 +15,59 @@ import org.junit.Test
import org.junit.runner.RunWith
import org.robolectric.RobolectricTestRunner
import org.robolectric.RuntimeEnvironment
import org.robolectric.annotation.Config
@RunWith(RobolectricTestRunner::class)
class AndroidFileSizeFormatterTest {
@Config(sdk = [Build.VERSION_CODES.N])
@Test
fun `test api 24 long format`() {
val sut = createAndroidFileSizeFormatter(sdkLevel = Build.VERSION_CODES.N)
assertThat(sut.format(1, useShortFormat = false)).isEqualTo("1.00B")
assertThat(sut.format(1000, useShortFormat = false)).isEqualTo("0.98KB")
assertThat(sut.format(1024, useShortFormat = false)).isEqualTo("1.00KB")
assertThat(sut.format(1024 * 1024, useShortFormat = false)).isEqualTo("1.00MB")
assertThat(sut.format(1024 * 1024 * 1024, useShortFormat = false)).isEqualTo("1.00GB")
assertThat(sut.format(1, useShortFormat = false)).isEqualTo("1 B")
assertThat(sut.format(1000, useShortFormat = false)).isEqualTo("0.98 KB")
assertThat(sut.format(1024, useShortFormat = false)).isEqualTo("1.00 KB")
assertThat(sut.format(1024 * 500, useShortFormat = false)).isEqualTo("500 KB")
assertThat(sut.format(1024 * 1024, useShortFormat = false)).isEqualTo("1.00 MB")
assertThat(sut.format(1024 * 1024 * 500, useShortFormat = false)).isEqualTo("500 MB")
assertThat(sut.format(1024 * 1024 * 1024, useShortFormat = false)).isEqualTo("1.00 GB")
}
@Config(sdk = [Build.VERSION_CODES.O])
@Test
fun `test api 26 long format`() {
val sut = createAndroidFileSizeFormatter(sdkLevel = Build.VERSION_CODES.O)
assertThat(sut.format(1, useShortFormat = false)).isEqualTo("1.00B")
assertThat(sut.format(1000, useShortFormat = false)).isEqualTo("0.98KB")
assertThat(sut.format(1024 * 1024, useShortFormat = false)).isEqualTo("0.95MB")
assertThat(sut.format(1024 * 1024 * 1024, useShortFormat = false)).isEqualTo("0.93GB")
assertThat(sut.format(1, useShortFormat = false)).isEqualTo("1 B")
assertThat(sut.format(1000, useShortFormat = false)).isEqualTo("0.98 KB")
assertThat(sut.format(1024, useShortFormat = false)).isEqualTo("1.00 KB")
assertThat(sut.format(1024 * 500, useShortFormat = false)).isEqualTo("500 KB")
assertThat(sut.format(1024 * 1024, useShortFormat = false)).isEqualTo("1.00 MB")
assertThat(sut.format(1024 * 1024 * 500, useShortFormat = false)).isEqualTo("500 MB")
assertThat(sut.format(1024 * 1024 * 1024, useShortFormat = false)).isEqualTo("1.00 GB")
}
@Config(sdk = [Build.VERSION_CODES.N])
@Test
fun `test api 24 short format`() {
val sut = createAndroidFileSizeFormatter(sdkLevel = Build.VERSION_CODES.N)
assertThat(sut.format(1, useShortFormat = true)).isEqualTo("1.0B")
assertThat(sut.format(1000, useShortFormat = true)).isEqualTo("0.98KB")
assertThat(sut.format(1024, useShortFormat = true)).isEqualTo("1.0KB")
assertThat(sut.format(1024 * 1024, useShortFormat = true)).isEqualTo("1.0MB")
assertThat(sut.format(1024 * 1024 * 1024, useShortFormat = true)).isEqualTo("1.0GB")
assertThat(sut.format(1, useShortFormat = true)).isEqualTo("1 B")
assertThat(sut.format(1000, useShortFormat = true)).isEqualTo("0.98 KB")
assertThat(sut.format(1024, useShortFormat = true)).isEqualTo("1.0 KB")
assertThat(sut.format(1024 * 500, useShortFormat = true)).isEqualTo("500 KB")
assertThat(sut.format(1024 * 1024, useShortFormat = true)).isEqualTo("1.0 MB")
assertThat(sut.format(1024 * 1024 * 500, useShortFormat = true)).isEqualTo("500 MB")
assertThat(sut.format(1024 * 1024 * 1024, useShortFormat = true)).isEqualTo("1.0 GB")
}
@Config(sdk = [Build.VERSION_CODES.O])
@Test
fun `test api 26 short format`() {
val sut = createAndroidFileSizeFormatter(sdkLevel = Build.VERSION_CODES.O)
assertThat(sut.format(1, useShortFormat = true)).isEqualTo("1.0B")
assertThat(sut.format(1000, useShortFormat = true)).isEqualTo("0.98KB")
assertThat(sut.format(1024 * 1024, useShortFormat = true)).isEqualTo("0.95MB")
assertThat(sut.format(1024 * 1024 * 1024, useShortFormat = true)).isEqualTo("0.93GB")
assertThat(sut.format(1, useShortFormat = true)).isEqualTo("1 B")
assertThat(sut.format(1000, useShortFormat = true)).isEqualTo("0.98 KB")
assertThat(sut.format(1024, useShortFormat = true)).isEqualTo("1.0 KB")
assertThat(sut.format(1024 * 500, useShortFormat = true)).isEqualTo("500 KB")
assertThat(sut.format(1024 * 1024, useShortFormat = true)).isEqualTo("1.0 MB")
assertThat(sut.format(1024 * 1024 * 1024, useShortFormat = true)).isEqualTo("1.0 GB")
}
private fun createAndroidFileSizeFormatter(sdkLevel: Int) = AndroidFileSizeFormatter(