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package org.truth0.subjects; |
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import org.truth0.FailureStrategy; |
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import org.truth0.util.ReflectionUtil; |
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import com.google.common.annotations.GwtCompatible; |
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import com.google.common.annotations.GwtIncompatible; |
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@GwtCompatible |
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public class ClassSubject extends Subject<ClassSubject, Class<?>> { |
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public ClassSubject(FailureStrategy failureStrategy, Class<?> o) { |
29 | 5 | super(failureStrategy, o); |
30 | 5 | } |
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@GwtIncompatible("Reflection. ") |
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public void declaresField(String fieldName) { |
35 | 4 | if (getSubject() == null) { |
36 | 1 | failureStrategy.fail("Cannot determine a field name from a null class."); |
37 | 0 | return; |
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} |
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try { |
40 | 3 | ReflectionUtil.getField(getSubject(), fieldName); |
41 | 1 | } catch (NoSuchFieldException e) { |
42 | 1 | StringBuilder message = new StringBuilder("Not true that "); |
43 | 1 | message.append("<").append(getSubject().getSimpleName()).append(">"); |
44 | 1 | message.append(" has a field named <").append(fieldName).append(">"); |
45 | 1 | failureStrategy.fail(message.toString()); |
46 | 2 | } |
47 | 2 | } |
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} |