Function TestMatchCodeGen_NoConstructorPatterns

pkg/codegen/match_test.go:341–382

TestMatchCodeGen_NoConstructorPatterns tests value switch for non-constructor patterns.

(t *testing.T)

// TestMatchCodeGen_NoConstructorPatterns tests value switch for non-constructor patterns.
func TestMatchCodeGen_NoConstructorPatterns(t *testing.T) {
	match := &ast.MatchExpr{
		Match: 1,
		Scrutinee: &ast.RawExpr{
			Text: "status",
		},
		Arms: []*ast.MatchArm{
			{
				Pattern: &ast.LiteralPattern{
					Value: "\"active\"",
					Kind:  ast.StringLiteral,
				},
				Body: &ast.RawExpr{Text: "1"},
			},
			{
				Pattern: &ast.WildcardPattern{},
				Body:    &ast.RawExpr{Text: "0"},
			},
		},
		IsExpr: false,
	}

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

	code := string(result.Output)

	// Should use value switch, not type switch
	if strings.Contains(code, ".(type)") {
		t.Errorf("Expected value switch (no type assertion), got: %s", code)
	}

	// Should have value caching
	if !strings.Contains(code, "val := status") {
		t.Errorf("Expected value caching, got: %s", code)
	}

	// Should have switch statement using cached variable
	if !strings.Contains(code, "switch val") {
		t.Errorf("Expected switch using cached val, got: %s", code)
	}
}

// =============================================================================
// Value Enum Match Tests (Phase 3)