try {
      Ints.constrainToRange((int) 1, (int) 3, (int) 2);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testConcat() {
    assertThat(Ints.concat()).isEqualTo(EMPTY);
    assertThat(Ints.concat(EMPTY)).isEqualTo(EMPTY);
    assertThat(Ints.concat(EMPTY, EMPTY, EMPTY)).isEqualTo(EMPTY);

    try {
      Shorts.constrainToRange((short) 1, (short) 3, (short) 2);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testConcat() {
    assertThat(Shorts.concat()).isEqualTo(EMPTY);
    assertThat(Shorts.concat(EMPTY)).isEqualTo(EMPTY);
    assertThat(Shorts.concat(EMPTY, EMPTY, EMPTY)).isEqualTo(EMPTY);

    try {
      Floats.constrainToRange((float) 1, (float) 3, (float) 2);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testConcat() {
    assertThat(Floats.concat()).isEqualTo(EMPTY);
    assertThat(Floats.concat(EMPTY)).isEqualTo(EMPTY);
    assertThat(Floats.concat(EMPTY, EMPTY, EMPTY)).isEqualTo(EMPTY);

    try {
      Ints.constrainToRange((int) 1, (int) 3, (int) 2);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testConcat() {
    assertThat(Ints.concat()).isEqualTo(EMPTY);
    assertThat(Ints.concat(EMPTY)).isEqualTo(EMPTY);
    assertThat(Ints.concat(EMPTY, EMPTY, EMPTY)).isEqualTo(EMPTY);

    try {
      Doubles.constrainToRange((double) 1, (double) 3, (double) 2);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testConcat() {
    assertThat(Doubles.concat()).isEqualTo(EMPTY);
    assertThat(Doubles.concat(EMPTY)).isEqualTo(EMPTY);
    assertThat(Doubles.concat(EMPTY, EMPTY, EMPTY)).isEqualTo(EMPTY);

    try {
      Floats.constrainToRange((float) 1, (float) 3, (float) 2);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testConcat() {
    assertThat(Floats.concat()).isEqualTo(EMPTY);
    assertThat(Floats.concat(EMPTY)).isEqualTo(EMPTY);
    assertThat(Floats.concat(EMPTY, EMPTY, EMPTY)).isEqualTo(EMPTY);

    try {
      Longs.constrainToRange((long) 1, (long) 3, (long) 2);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testConcat() {
    assertThat(Longs.concat()).isEqualTo(EMPTY);
    assertThat(Longs.concat(EMPTY)).isEqualTo(EMPTY);
    assertThat(Longs.concat(EMPTY, EMPTY, EMPTY)).isEqualTo(EMPTY);

	}

	type S []int
	s2 := S{4, 5, 6}
	apply(s2, Reverse)
	if want := (S{6, 5, 4}); !Equal(s2, want) {
		t.Errorf("Reverse(%v) = %v, want %v", S{4, 5, 6}, s2, want)
	}
}

func TestConcat(t *testing.T) {
	cases := []struct {
		s    [][]int
		want []int
	}{
		{
			s:    [][]int{nil},
			want: nil,
		},
		{
			s:    [][]int{{1}},
			want: []int{1},
		},

  func.return %0 : tensor<1x4x384x384xf32>
}

// -----

func.func @testConcat(%arg0: tensor<1x2xi32>, %arg1: tensor<1x2xi32>) -> tensor<2x2xi32> {
  // CHECK: "tfl.concatenation"(%arg0, %arg1) <{axis = 0 : i32, fused_activation_function = "NONE"}>