Function TestSpec_PublicAPI_Truncate

pkg/stringutil/spec_test.go:19–65

TestSpec_PublicAPI_Truncate validates the documented behavior of Truncate as described in the package README.md. Specification: - Truncates s to at most maxLen characters, appending "..." when truncation occurs. - For maxLen ≤ 3 the string is truncated without ellipsis.

(t *testing.T)

// - Truncates s to at most maxLen characters, appending "..." when truncation occurs.
// - For maxLen ≤ 3 the string is truncated without ellipsis.
func TestSpec_PublicAPI_Truncate(t *testing.T) {
	tests := []struct {
		name     string
		input    string
		maxLen   int
		expected string
	}{
		{
			name:     "truncates with ellipsis for maxLen > 3 (documented example)",
			input:    "hello world",
			maxLen:   8,
			expected: "hello...",
		},
		{
			name:     "no truncation when string fits within maxLen (documented example)",
			input:    "hi",
			maxLen:   8,
			expected: "hi",
		},
		{
			name:     "maxLen <= 3 truncates without ellipsis",
			input:    "hello world",
			maxLen:   3,
			expected: "hel",
		},
		{
			name:     "maxLen = 1 truncates without ellipsis",
			input:    "hello",
			maxLen:   1,
			expected: "h",
		},
		{
			name:     "maxLen = 2 truncates without ellipsis",
			input:    "hello",
			maxLen:   2,
			expected: "he",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			result := Truncate(tt.input, tt.maxLen)
			assert.Equal(t, tt.expected, result,
				"Truncate(%q, %d) should match documented output", tt.input, tt.maxLen)
		})
	}
}

// TestSpec_PublicAPI_NormalizeWhitespace validates the documented behavior of
// NormalizeWhitespace as described in the package README.md.