Function TestOffsetForPosition

backend/api/lsp/utils_test.go:10–87

(t *testing.T)

)

func TestOffsetForPosition(t *testing.T) {
	testCases := []struct {
		content  []byte
		position lsp.Position
		expected int
		valid    bool
	}{
		{
			content:  []byte("Hello, World!"),
			position: lsp.Position{Line: 0, Character: 0},
			expected: 0,
			valid:    true,
		},
		{
			content:  []byte("Hello, World!"),
			position: lsp.Position{Line: 0, Character: 7},
			expected: 7,
			valid:    true,
		},
		{
			content:  []byte("Hello, 世界!"),
			position: lsp.Position{Line: 0, Character: 7}, // Before '世'
			expected: 7,
			valid:    true,
		},
		{
			content:  []byte("Hello, 世界!"),
			position: lsp.Position{Line: 0, Character: 8}, // After '世'
			expected: 10,
			valid:    true,
		},
		{
			content:  []byte("Hello,\nWorld!"),
			position: lsp.Position{Line: 1, Character: 0}, // Start of line 2
			expected: 7,
			valid:    true,
		},
		{
			content:  []byte("Hello,\nWorld!"),
			position: lsp.Position{Line: 1, Character: 5}, // 'World'
			expected: 12,
			valid:    true,
		},
		{
			content:  []byte("Hello,\nWorld!"),
			position: lsp.Position{Line: 1, Character: 10}, // Beyond line boundary
			valid:    false,
		},
		{
			content:  []byte("Hello, 𐍈!"), // '𐍈' is a Unicode character requiring surrogate pairs in UTF-16
			position: lsp.Position{Line: 0, Character: 7},
			expected: 7,
			valid:    true,
		},
		{
			content:  []byte("Hello, 𐍈!"),
			position: lsp.Position{Line: 0, Character: 9}, // After surrogate pairs in UTF-16
			expected: 11,