|  | @@ -6,8 +6,8 @@
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				|  |  |  #include <prometheus/family.h>
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				|  |  |  #include <prometheus/histogram.h>
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				|  |  |  
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				|  |  | -using namespace testing;
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				|  |  | -using namespace prometheus;
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				|  |  | +namespace prometheus {
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				|  |  | +namespace {
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				|  |  |  
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				|  |  |  TEST(FamilyTest, labels) {
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				|  |  |    auto const_label = ClientMetric::Label{"component", "test"};
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				|  | @@ -21,7 +21,7 @@ TEST(FamilyTest, labels) {
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				|  |  |    ASSERT_GE(collected.size(), 1);
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				|  |  |    ASSERT_GE(collected.at(0).metric.size(), 1);
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				|  |  |    EXPECT_THAT(collected.at(0).metric.at(0).label,
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				|  |  | -              ElementsAre(const_label, dynamic_label));
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				|  |  | +              ::testing::ElementsAre(const_label, dynamic_label));
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				|  |  |  }
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				|  |  |  
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				|  |  |  TEST(FamilyTest, counter_value) {
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				|  | @@ -31,7 +31,7 @@ TEST(FamilyTest, counter_value) {
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				|  |  |    auto collected = family.Collect();
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				|  |  |    ASSERT_GE(collected.size(), 1);
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				|  |  |    ASSERT_GE(collected[0].metric.size(), 1);
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				|  |  | -  EXPECT_THAT(collected[0].metric.at(0).counter.value, Eq(1));
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				|  |  | +  EXPECT_THAT(collected[0].metric.at(0).counter.value, ::testing::Eq(1));
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				|  |  |  }
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				|  |  |  
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				|  |  |  TEST(FamilyTest, remove) {
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				|  | @@ -52,7 +52,8 @@ TEST(FamilyTest, Histogram) {
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				|  |  |    auto collected = family.Collect();
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				|  |  |    ASSERT_EQ(collected.size(), 1);
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				|  |  |    ASSERT_GE(collected[0].metric.size(), 1);
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				|  |  | -  EXPECT_THAT(collected[0].metric.at(0).histogram.sample_count, Eq(1));
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				|  |  | +  EXPECT_THAT(collected[0].metric.at(0).histogram.sample_count,
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				|  |  | +              ::testing::Eq(1));
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				|  |  |  }
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				|  |  |  
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				|  |  |  TEST(FamilyTest, add_twice) {
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				|  | @@ -78,3 +79,6 @@ TEST(FamilyTest, should_assert_on_invalid_labels) {
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				|  |  |    EXPECT_DEATH(add_metric_with_invalid_label_name(), ".*");
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				|  |  |  }
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				|  |  |  #endif
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				|  |  | +
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				|  |  | +}  // namespace
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				|  |  | +}  // namespace prometheus
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