Function TestMatchCodeGen_GuardCondition

pkg/codegen/match_test.go:237–277

TestMatchCodeGen_GuardCondition tests guard condition generation.

(t *testing.T)

// TestMatchCodeGen_GuardCondition tests guard condition generation.
func TestMatchCodeGen_GuardCondition(t *testing.T) {
	match := &ast.MatchExpr{
		Match: 1,
		Scrutinee: &ast.RawExpr{
			Text: "result",
		},
		Arms: []*ast.MatchArm{
			{
				Pattern: &ast.ConstructorPattern{
					Name: "Ok",
					Params: []ast.Pattern{
						&ast.VariablePattern{Name: "x"},
					},
				},
				Guard:    &ast.RawExpr{Text: "x > 0"},
				GuardPos: 20,
				Body:     &ast.RawExpr{Text: "x * 2"},
			},
			{
				Pattern: &ast.WildcardPattern{},
				Body:    &ast.RawExpr{Text: "0"},
			},
		},
		IsExpr: false,
	}

	gen := NewMatchCodeGen(match).(*MatchCodeGen)
	result := gen.Generate()

	code := string(result.Output)

	// Should contain guard condition
	if !strings.Contains(code, "if x > 0") {
		t.Errorf("Expected guard condition 'if x > 0', got: %s", code)
	}

	// Should have nested body in guard
	if !strings.Contains(code, "x * 2") {
		t.Errorf("Expected body 'x * 2', got: %s", code)
	}
}

// TestMatchCodeGen_MatchExpression tests IIFE generation for match expressions.
func TestMatchCodeGen_MatchExpression(t *testing.T) {