Function TestNormalizeWhitespace

pkg/stringutil/stringutil_test.go:101–160

(t *testing.T)

}

func TestNormalizeWhitespace(t *testing.T) {
	tests := []struct {
		name     string
		content  string
		expected string
	}{
		{
			name:     "no trailing whitespace",
			content:  "hello\nworld",
			expected: "hello\nworld\n",
		},
		{
			name:     "trailing spaces on lines",
			content:  "hello  \nworld  ",
			expected: "hello\nworld\n",
		},
		{
			name:     "trailing tabs on lines",
			content:  "hello\t\nworld\t",
			expected: "hello\nworld\n",
		},
		{
			name:     "multiple trailing newlines",
			content:  "hello\nworld\n\n\n",
			expected: "hello\nworld\n",
		},
		{
			name:     "empty string",
			content:  "",
			expected: "",
		},
		{
			name:     "single newline",
			content:  "\n",
			expected: "",
		},
		{
			name:     "mixed whitespace",
			content:  "hello  \t\nworld \t \n\n",
			expected: "hello\nworld\n",
		},
		{
			name:     "content with no newline",
			content:  "hello world",
			expected: "hello world\n",
		},
		{
			name:     "content already normalized",
			content:  "hello\nworld\n",
			expected: "hello\nworld\n",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			result := NormalizeWhitespace(tt.content)
			assert.Equal(t, tt.expected, result, "NormalizeWhitespace(%q) should normalize trailing whitespace and newlines", tt.content)
		})