There were some changes required to the Read func to get this working.
The initial set of tests showed the following:
```
testing.go:255: Step 1 error: ImportStateVerify attributes not equivalent. Difference is shown below. Top is actual, bottom is expected.
(map[string]string) {
}
(map[string]string) (len=8) {
(string) (len=8) "hash_key": (string) (len=16) "TestTableHashKey",
(string) (len=23) "local_secondary_index.#": (string) (len=1) "1",
(string) (len=36) "local_secondary_index.884610231.name": (string) (len=12) "TestTableLSI",
(string) (len=52) "local_secondary_index.884610231.non_key_attributes.#": (string) (len=1) "0",
(string) (len=47) "local_secondary_index.884610231.projection_type": (string) (len=3) "ALL",
(string) (len=41) "local_secondary_index.884610231.range_key": (string) (len=15) "TestLSIRangeKey",
(string) (len=4) "name": (string) (len=38) "TerraformTestTable-2710929679033484576",
(string) (len=9) "range_key": (string) (len=17) "TestTableRangeKey"
}
```
On investigation, this was telling me that `hash_key`, `range_key`, `name` and `local_secondary_index` were not being set on the Read func
When they were being set, all looks as expected:
```
make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestAccAWSDynamoDbTable_'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /vendor/)
TF_ACC=1 go test ./builtin/providers/aws -v -run=TestAccAWSDynamoDbTable_ -timeout 120m
=== RUN TestAccAWSDynamoDbTable_importBasic
--- PASS: TestAccAWSDynamoDbTable_importBasic (20.39s)
=== RUN TestAccAWSDynamoDbTable_basic
--- PASS: TestAccAWSDynamoDbTable_basic (39.99s)
=== RUN TestAccAWSDynamoDbTable_streamSpecification
--- PASS: TestAccAWSDynamoDbTable_streamSpecification (50.44s)
PASS
ok github.com/hashicorp/terraform/builtin/providers/aws 110.841s
```