Update on "[ET-VK][testing] Q/DQ/CQP op comprehensive delegate dynamic quantization testing"

# Context

We need to ensure that most of the operators that were created work in tandem with each other for dynamic quantization.

# Changes

This creates two test cases to test the per_token and per_tensor pipeline to ensure that the whole full quantization workflow works as intended.

Differential Revision: [D77746139](https://our.internmc.facebook.com/intern/diff/D77746139/)

[ghstack-poisoned]

Author: morelos

backends/vulkan/test/op_tests/quantize_test.cpp

@@ -645,6 +645,48 @@ void test_vulkan_quantize_per_tensor_tensor(
       vkcompute::utils::kTexture3D);
 }
 
+// Wrapper function to test both buffer and texture storage types
+void test_vulkan_quantize_per_channel(
+    const std::vector<int>& input_sizes,
+    const std::vector<float>& scales,
+    const std::vector<int>& zero_points,
+    int64_t axis,
+    int64_t quant_min,
+    int64_t quant_max,
+    at::ScalarType in_dtype = at::kFloat,
+    at::ScalarType dtype = at::kInt) {
+  // Test with buffer storage
+  test_vulkan_quantize_per_channel_impl(
+      input_sizes,
+      scales,
+      zero_points,
+      axis,
+      quant_min,
+      quant_max,
+      in_dtype,
+      dtype,
+      vkcompute::utils::kBuffer,
+      vkcompute::utils::kBuffer);
+
+  // If the in_dtype is a double, convert to float for texture implementation
+  // since they don't support 64bit as inputs
+  if (in_dtype == at::kDouble) {
+    in_dtype = at::kFloat;
+  }
+
+  test_vulkan_quantize_per_channel_impl(
+      input_sizes,
+      scales,
+      zero_points,
+      axis,
+      quant_min,
+      quant_max,
+      in_dtype,
+      dtype,
+      vkcompute::utils::kTexture3D,
+      vkcompute::utils::kTexture3D);
+}
+
 void test_reference_quantize_per_tensor(
     const std::vector<int>& input_sizes,
     float scale,