setUp(parameters.first, parameters.second)
    val k1Creator = cache.edit("k1")!!
    k1Creator.setString(0, "AB")
    k1Creator.setString(1, "C")
    k1Creator.commit()
    val k2Creator = cache.edit("k2")!!
    k2Creator.setString(0, "DEF")
    k2Creator.setString(1, "G")
    k2Creator.commit()
    val k1Snapshot = cache["k1"]!!
    k1Snapshot.close()
    cache.close()

  EXPECT_EQ(0, TF_NumDims(t_out));
  ASSERT_EQ(TF_TensorByteSize(t_in.get()), TF_TensorByteSize(t_out));
  TF_TString* t_in_tstr = static_cast<TF_TString*>(TF_TensorData(t_in.get()));
  TF_TString* t_out_tstr = static_cast<TF_TString*>(TF_TensorData(t_out));
  EXPECT_EQ(absl::string_view(test_string),
            absl::string_view(TF_TString_GetDataPointer(t_out_tstr),
                              TF_TString_GetSize(t_out_tstr)));

  }

  private static Enumeration<Integer> enumerate(int... ints) {
    Vector<Integer> vector = new Vector<>(Ints.asList(ints));
    return vector.elements();
  }

  public void testToString() {
    Iterator<String> iterator = Lists.newArrayList("yam", "bam", "jam", "ham").iterator();
    assertEquals("[yam, bam, jam, ham]", Iterators.toString(iterator));
  }

  public void testToStringWithNull() {

  }

  private static Enumeration<Integer> enumerate(int... ints) {
    Vector<Integer> vector = new Vector<>(Ints.asList(ints));
    return vector.elements();
  }

  public void testToString() {
    Iterator<String> iterator = Lists.newArrayList("yam", "bam", "jam", "ham").iterator();
    assertEquals("[yam, bam, jam, ham]", Iterators.toString(iterator));
  }

  public void testToStringWithNull() {

        .addEqualityGroup(TypeToken.of(new TypeCapture<B>() {}.capture()))
        .testEquals();
  }

  // T is used inside to test type variable
  public <T> void testToString() {
    assertEquals(String.class.getName(), new TypeToken<String>() {}.toString());
    assertEquals("T", TypeToken.of(new TypeCapture<T>() {}.capture()).toString());

#include "tensorflow/c/tf_attrtype.h"
#include "tensorflow/c/tf_buffer.h"
#include "tensorflow/c/tf_datatype.h"
#include "tensorflow/c/tf_status.h"
#include "tensorflow/c/tf_tensor.h"
#include "tensorflow/c/tf_tstring.h"

// --------------------------------------------------------------------------
// C API for TensorFlow.
//
// The API leans towards simplicity and uniformity instead of convenience

        .addEqualityGroup(TypeToken.of(new TypeCapture<B>() {}.capture()))
        .testEquals();
  }

  // T is used inside to test type variable
  public <T> void testToString() {
    assertEquals(String.class.getName(), new TypeToken<String>() {}.toString());
    assertEquals("T", TypeToken.of(new TypeCapture<T>() {}.capture()).toString());