Function TEST

eval/tests/end_to_end_test.cc:57–99

Simple end-to-end test, which also serves as usage example.

// Simple end-to-end test, which also serves as usage example.
TEST(EndToEndTest, SimpleOnePlusOne) {
  // AST CEL equivalent of "1+var"
  constexpr char kExpr0[] = R"(
    call_expr: <
      function: "_+_"
      args: <
        ident_expr: <
          name: "var"
        >
      >
      args: <
        const_expr: <
          int64_value: 1
        >
      >
    >
  )";

  Expr expr;
  SourceInfo source_info;
  TextFormat::ParseFromString(kExpr0, &expr);

  // Obtain CEL Expression builder.
  std::unique_ptr<CelExpressionBuilder> builder = CreateCelExpressionBuilder();

  // Builtin registration.
  ASSERT_OK(RegisterBuiltinFunctions(builder->GetRegistry()));

  // Create CelExpression from AST (Expr object).
  ASSERT_OK_AND_ASSIGN(auto cel_expr,
                       builder->CreateExpression(&expr, &source_info));
  Activation activation;

  // Bind value to "var" parameter.
  activation.InsertValue("var", CelValue::CreateInt64(1));

  Arena arena;

  // Run evaluation.
  ASSERT_OK_AND_ASSIGN(CelValue result, cel_expr->Evaluate(activation, &arena));
  ASSERT_TRUE(result.IsInt64());
  EXPECT_EQ(result.Int64OrDie(), 2);
}

// Simple end-to-end test, which also serves as usage example.
TEST(EndToEndTest, EmptyStringCompare) {