TestContextShouldBindBodyWith() — gin Function Reference

Source Code

context_test.go lines 2480–2557

func TestContextShouldBindBodyWith(t *testing.T) {
	type typeA struct {
		Foo string `json:"foo" xml:"foo" binding:"required"`
	}
	type typeB struct {
		Bar string `json:"bar" xml:"bar" binding:"required"`
	}
	for _, tt := range []struct {
		name               string
		bindingA, bindingB binding.BindingBody
		bodyA, bodyB       string
	}{
		{
			name:     "JSON & JSON",
			bindingA: binding.JSON,
			bindingB: binding.JSON,
			bodyA:    `{"foo":"FOO"}`,
			bodyB:    `{"bar":"BAR"}`,
		},
		{
			name:     "JSON & XML",
			bindingA: binding.JSON,
			bindingB: binding.XML,
			bodyA:    `{"foo":"FOO"}`,
			bodyB: `<?xml version="1.0" encoding="UTF-8"?>
<root>
   <bar>BAR</bar>
</root>`,
		},
		{
			name:     "XML & XML",
			bindingA: binding.XML,
			bindingB: binding.XML,
			bodyA: `<?xml version="1.0" encoding="UTF-8"?>
<root>
   <foo>FOO</foo>
</root>`,
			bodyB: `<?xml version="1.0" encoding="UTF-8"?>
<root>
   <bar>BAR</bar>
</root>`,
		},
	} {
		t.Logf("testing: %s", tt.name)
		// bodyA to typeA and typeB
		{
			w := httptest.NewRecorder()
			c, _ := CreateTestContext(w)
			c.Request, _ = http.NewRequest(
				http.MethodPost, "http://example.com", strings.NewReader(tt.bodyA),
			)
			// When it binds to typeA and typeB, it finds the body is
			// not typeB but typeA.
			objA := typeA{}
			require.NoError(t, c.ShouldBindBodyWith(&objA, tt.bindingA))
			assert.Equal(t, typeA{"FOO"}, objA)
			objB := typeB{}
			require.Error(t, c.ShouldBindBodyWith(&objB, tt.bindingB))
			assert.NotEqual(t, typeB{"BAR"}, objB)
		}
		// bodyB to typeA and typeB
		{
			// When it binds to typeA and typeB, it finds the body is
			// not typeA but typeB.
			w := httptest.NewRecorder()
			c, _ := CreateTestContext(w)
			c.Request, _ = http.NewRequest(
				http.MethodPost, "http://example.com", strings.NewReader(tt.bodyB),
			)
			objA := typeA{}
			require.Error(t, c.ShouldBindBodyWith(&objA, tt.bindingA))
			assert.NotEqual(t, typeA{"FOO"}, objA)
			objB := typeB{}
			require.NoError(t, c.ShouldBindBodyWith(&objB, tt.bindingB))
			assert.Equal(t, typeB{"BAR"}, objB)
		}
	}
}