This is a testharness.js-based test.
[FAIL] lstm float32 tensors steps=1 with options.bias, options.recurrentBias and options.activations=['relu', 'relu', 'relu']
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
[FAIL] lstm float32 tensors steps=1 with options.bias, options.recurrentBias, options.activations=['relu', 'relu', 'relu'] and options.peepholeWeight
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
[FAIL] lstm float32 tensors steps=1 with options.bias, options.recurrentBias, options.activations=['relu', 'relu', 'relu'] and options.initialHiddenState
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
[FAIL] lstm float32 tensors steps=1 with options.bias, options.recurrentBias, options.activations=['relu', 'relu', 'relu'] and options.initialCellState
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
[FAIL] lstm float32 tensors steps=1 with options.bias, options.recurrentBias, options.activations=['relu', 'relu', 'relu'] and explicit options.returnSequence=false
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
[FAIL] lstm float32 tensors steps=1 with options.bias, options.recurrentBias, options.activations=['relu', 'relu', 'relu'] and options.returnSequence=true
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
[FAIL] lstm float32 tensors steps=1 with options.bias, options.recurrentBias, options.activations=['relu', 'relu', 'relu'] and explicit options.direction='forward'
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
[FAIL] lstm float32 tensors steps=1 with options.bias, options.recurrentBias, options.activations=['relu', 'relu', 'relu'] and explicit options.layout='iofg'
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
[FAIL] lstm float32 tensors steps=1 with options.bias, options.recurrentBias, options.activations=['relu', 'relu', 'relu'] and options.layout='ifgo'
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
[FAIL] lstm float32 tensors steps=1 with all options
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
[FAIL] lstm float32 tensors steps=2 with options.bias, options.recurrentBias, options.activations=['relu', 'relu', 'relu'] and options.direction='backward'
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
[FAIL] lstm float32 tensors steps=2 with all options
promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': Unsupported operator lstm."
Harness: the test ran to completion.