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export const description =
'Test out-of-memory conditions creating large mappable/mappedAtCreation buffers.';
import { kUnitCaseParamsBuilder } from '../../../../common/framework/params_builder.js';
import { makeTestGroup } from '../../../../common/framework/test_group.js';
import { kBufferUsages } from '../../../capability_info.js';
import { GPUTest } from '../../../gpu_test.js';
import { kMaxSafeMultipleOf8 } from '../../../util/math.js';
const oomAndSizeParams = kUnitCaseParamsBuilder
.combine('oom', [false, true])
.expand('size', ({ oom }) => {
return oom
? [
kMaxSafeMultipleOf8,
0x20_0000_0000, // 128 GB
]
: [16];
});
export const g = makeTestGroup(GPUTest);
g.test('mappedAtCreation')
.desc(
`Test creating a very large buffer mappedAtCreation buffer should throw a RangeError only
because such a large allocation cannot be created when we initialize an active buffer mapping.
`
)
.params(
oomAndSizeParams //
.beginSubcases()
.combine('usage', kBufferUsages)
)
.fn(t => {
const { oom, usage, size } = t.params;
const f = () => t.device.createBuffer({ mappedAtCreation: true, size, usage });
if (oom) {
// getMappedRange is normally valid on OOM buffers, but this one fails because the
// (default) range is too large to create the returned ArrayBuffer.
t.shouldThrow('RangeError', f);
} else {
const buffer = f();
const mapping = buffer.getMappedRange();
t.expect(mapping.byteLength === size, 'Mapping should be successful');
buffer.unmap();
t.expect(mapping.byteLength === 0, 'Mapping should be detached');
}
});
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