NumberToDataSizeConverterTests Class — spring-boot Architecture

Source Code

core/spring-boot/src/test/java/org/springframework/boot/convert/NumberToDataSizeConverterTests.java lines 40–77

class NumberToDataSizeConverterTests {

	@ConversionServiceTest
	void convertWhenSimpleWithoutSuffixShouldReturnDataSize(ConversionService conversionService) {
		assertThat(convert(conversionService, 10)).isEqualTo(DataSize.ofBytes(10));
		assertThat(convert(conversionService, +10)).isEqualTo(DataSize.ofBytes(10));
		assertThat(convert(conversionService, -10)).isEqualTo(DataSize.ofBytes(-10));
	}

	@ConversionServiceTest
	void convertWhenSimpleWithoutSuffixButWithAnnotationShouldReturnDataSize(ConversionService conversionService) {
		assertThat(convert(conversionService, 10, DataUnit.KILOBYTES)).isEqualTo(DataSize.ofKilobytes(10));
		assertThat(convert(conversionService, +10, DataUnit.KILOBYTES)).isEqualTo(DataSize.ofKilobytes(10));
		assertThat(convert(conversionService, -10, DataUnit.KILOBYTES)).isEqualTo(DataSize.ofKilobytes(-10));
	}

	private @Nullable DataSize convert(ConversionService conversionService, Integer source) {
		return conversionService.convert(source, DataSize.class);
	}

	@SuppressWarnings({ "rawtypes", "unchecked" })
	private @Nullable DataSize convert(ConversionService conversionService, Integer source,
			@Nullable DataUnit defaultUnit) {
		TypeDescriptor targetType = mock(TypeDescriptor.class);
		if (defaultUnit != null) {
			DataSizeUnit unitAnnotation = AnnotationUtils
				.synthesizeAnnotation(Collections.singletonMap("value", defaultUnit), DataSizeUnit.class, null);
			given(targetType.getAnnotation(DataSizeUnit.class)).willReturn(unitAnnotation);
		}
		given(targetType.getType()).willReturn((Class) DataSize.class);
		return (DataSize) conversionService.convert(source, TypeDescriptor.forObject(source), targetType);
	}

	static Stream<? extends Arguments> conversionServices() {
		return ConversionServiceArguments.with(new NumberToDataSizeConverter());
	}

}