Function TestParseContext_ErrorHandling

pkg/sql/parser/context_test.go:349–399

TestParseContext_ErrorHandling verifies proper error handling

(t *testing.T)

// TestParseContext_ErrorHandling verifies proper error handling
func TestParseContext_ErrorHandling(t *testing.T) {
	tests := []struct {
		name        string
		sql         string
		shouldError bool
	}{
		{
			name:        "incomplete select",
			sql:         "SELECT FROM users",
			shouldError: true,
		},
		{
			name:        "missing table name",
			sql:         "SELECT * FROM",
			shouldError: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			ctx := context.Background()

			// Try to tokenize - some errors may occur here
			tkz := tokenizer.GetTokenizer()
			defer tokenizer.PutTokenizer(tkz)

			tokens, tokErr := tkz.Tokenize([]byte(tt.sql))
			if tokErr != nil {
				// Expected for some invalid SQL
				return
			}

			p := NewParser()
			defer p.Release()

			ast, err := p.ParseContextFromModelTokens(ctx, tokens)

			if tt.shouldError && err == nil {
				t.Error("Expected error but got none")
			}

			if err != nil && err == context.Canceled {
				t.Error("Should not return context.Canceled for SQL errors")
			}

			if tt.shouldError && ast != nil {
				t.Error("Expected nil AST on error")
			}
		})
	}
}

// TestParseContext_DeepNesting verifies context checks with deeply nested expressions
func TestParseContext_DeepNesting(t *testing.T) {