feat: added fft2

ivy/functional/frontends/paddle/fft.py

@@ -16,6 +16,35 @@ def fft(x, n=None, axis=-1.0, norm="backward", name=None):
     return ivy.astype(ret, x.dtype)
 
 
+@with_supported_dtypes(
+    {"2.5.1 and below": ("complex64", "complex128")},
+    "paddle",
+)
+@to_ivy_arrays_and_back
+def fft2(x, s=None, axes=(-2, -1), norm="backward", name=None):
+    # Check if s is provided
+    if s is not None:
+        # If s is provided, zero-pad the input tensor x along the specified axes
+        for ax, length in zip(axes, s):            
+            x = ivy.pad(
+                x,
+                [
+                    (0, max(0, length - x.shape[ax])) if i == ax else (0, 0)
+                    for i in range(x.ndim)
+                ],
+            )            
+
+    # Apply FFT along the first axis
+    fft_first_axis = fft(x, n=s[0] if s else None, axis=axes[0], norm=norm)
+
+    # Apply FFT along the second axis
+    fft_second_axis = fft(
+        fft_first_axis, n=s[1] if s else None, axis=axes[1], norm=norm
+    )
+
+    return fft_second_axis
+
+
 @with_supported_dtypes(
     {
         "2.5.1 and below": (

ivy_tests/test_ivy/test_frontends/test_paddle/test_fft.py

@@ -46,6 +46,48 @@ def test_paddle_fft(
     )
 
 
+@handle_frontend_test(
+    fn_tree="paddle.fft.fft2",
+    dtype_x_axis=helpers.dtype_values_axis(
+        available_dtypes=helpers.get_dtypes("valid"),
+        min_value=-10,
+        max_value=10,
+        min_num_dims=2,  # Since fft2 is for 2D FFT
+        valid_axis=True,
+        force_int_axis=True,
+    ),
+    s=st.one_of(
+        st.tuples(
+            st.integers(min_value=2, max_value=10),
+            st.integers(min_value=2, max_value=10),
+        ),
+        st.just(None),
+    ),
+    norm=st.sampled_from(["backward", "ortho", "forward"]),
+)
+def test_paddle_fft2(
+    dtype_x_axis,
+    s,
+    norm,
+    frontend,
+    backend_fw,
+    test_flags,
+    fn_tree,
+):
+    input_dtypes, x, axes = dtype_x_axis
+    helpers.test_frontend_function(
+        input_dtypes=input_dtypes,
+        backend_to_test=backend_fw,
+        frontend=frontend,
+        test_flags=test_flags,
+        fn_tree=fn_tree,
+        x=x[0],
+        s=s,
+        axes=axes,
+        norm=norm,
+    )
+
+
 @handle_frontend_test(
     fn_tree="paddle.fft.fftshift",
     dtype_x_axis=helpers.dtype_values_axis(