checkHelperVersion(NO_ATOMIC_FIELD_UPDATER, "SynchronizedAtomicHelper");

    // Then, run the actual tests under each alternative classloader:

    runTestMethod(NO_ATOMIC_FIELD_UPDATER);
    // TODO(lukes): assert that the logs are full of errors
  }

  /**
   * Runs the corresponding {@link FuturesTest} test method in a new classloader that disallows
   * certain core JDK classes.
   */

        for (int i = 0; i < b.length; i++) {
            b[i] = (byte) (i + 1);
        }

        // Act: release should zero immediately to avoid leaks
        impl.releaseBuffer(b);

        // Assert: original array is zeroed in-place
        for (byte value : b) {
            assertEquals(0, value, "Released buffer must be zeroed");
        }

        // Next get should return the same instance from cache

      if (recurrence) {
        "run again after ${formatDuration(executeNanoTime - now)}"
      } else {
        "scheduled after ${formatDuration(executeNanoTime - now)}"
      }
    }

    // Insert in chronological order. Always compare deltas because nanoTime() is permitted to wrap.
    var insertAt = futureTasks.indexOfFirst { it.nextExecuteNanoTime - now > delayNanos }
    if (insertAt == -1) insertAt = futureTasks.size

import static com.google.common.truth.Truth.assertThat;
import static java.util.concurrent.Executors.newFixedThreadPool;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static org.junit.Assert.assertThrows;

import com.google.common.base.Stopwatch;
import com.google.common.collect.Range;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.concurrent.Callable;

    public void testIllegalIndexedType() throws Exception {
        try {
            ReflectionValueExtractor.evaluate("h.value[1]", new ValueHolder("string"));
        } catch (Exception e) {
            // TODO assert exception message
        }
    }

    /**
     * <p>testIllegalMappedType.</p>
     *
     * @throws Exception if any.
     */
    @Test

import static java.lang.System.arraycopy;
import static java.util.Arrays.asList;
import static java.util.Collections.frequency;
import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.fail;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.util.ArrayList;

import static java.math.RoundingMode.HALF_EVEN;
import static java.math.RoundingMode.HALF_UP;
import static java.math.RoundingMode.UNNECESSARY;
import static java.math.RoundingMode.UP;
import static org.junit.Assert.assertThrows;

import com.google.common.annotations.GwtIncompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.math.BigDecimal;
import java.math.MathContext;
import java.math.RoundingMode;

例：`pip install httpx`.

///

导入 `TestClient`.

通过传入你的**FastAPI**应用创建一个 `TestClient` 。

创建名字以 `test_` 开头的函数（这是标准的 `pytest` 约定）。

像使用 `httpx` 那样使用 `TestClient` 对象。

为你需要检查的地方用标准的Python表达式写个简单的 `assert` 语句（重申，标准的`pytest`）。

{* ../../docs_src/app_testing/tutorial001.py hl[2,12,15:18] *}

/// tip | 提示

注意测试函数是普通的 `def`，不是 `async def`。

还有client的调用也是普通的调用，不是用 `await`。

这让你可以直接使用 `pytest` 而不会遇到麻烦。

    public String xgetLocationBase() {
        final StringBuilder sb = new StringBuilder();
        ConditionQuery query = this;
        while (true) {
            if (query.isBaseQuery()) {
                sb.insert(0, CQ_PROPERTY + ".");
                break;
            } else {
                final String foreignPropertyName = query.xgetForeignPropertyName();
                if (foreignPropertyName == null) {

    public String xgetLocationBase() {
        final StringBuilder sb = new StringBuilder();
        ConditionQuery query = this;
        while (true) {
            if (query.isBaseQuery()) {
                sb.insert(0, CQ_PROPERTY + ".");
                break;
            } else {
                final String foreignPropertyName = query.xgetForeignPropertyName();
                if (foreignPropertyName == null) {