本文整理汇总了Golang中github.com/concourse/atc/db.Conn.Ping方法的典型用法代码示例。如果您正苦于以下问题：Golang Conn.Ping方法的具体用法？Golang Conn.Ping怎么用？Golang Conn.Ping使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/concourse/atc/db.Conn的用法示例。
在下文中一共展示了Conn.Ping方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1:
underlyingConn *fakes.FakeConn
countingConn db.Conn
)
BeforeEach(func() {
underlyingConn = new(fakes.FakeConn)
countingConn = metric.CountQueries(underlyingConn)
})
AfterEach(func() {
err := countingConn.Close()
Expect(err).NotTo(HaveOccurred())
})
It("passes through calls to the underlying connection", func() {
countingConn.Ping()
Expect(underlyingConn.PingCallCount()).To(Equal(1))
})
It("returns the return values from the underlying connection", func() {
underlyingConn.PingReturns(errors.New("disaster"))
err := countingConn.Ping()
Expect(err).To(MatchError("disaster"))
})
Describe("query counting", func() {
It("increments the global (;_;) counter", func() {
_, err := countingConn.Query("SELECT $1::int", 1)
Expect(err).NotTo(HaveOccurred())示例2:
explainConn db.Conn
)
BeforeEach(func() {
logger = lagertest.NewTestLogger("explain")
underlyingConn = new(fakes.FakeConn)
explainConn = db.Explain(logger, underlyingConn, 100*time.Millisecond)
})
AfterEach(func() {
err := explainConn.Close()
Ω(err).ShouldNot(HaveOccurred())
})
It("passes through calls to the underlying connection", func() {
explainConn.Ping()
Ω(underlyingConn.PingCallCount()).To(Equal(1))
})
It("returns the return values from the underlying connection", func() {
underlyingConn.PingReturns(errors.New("disaster"))
err := explainConn.Ping()
Ω(err).Should(MatchError("disaster"))
})
Context("when the query takes less time than the timeout", func() {
var realConn *sql.DB
BeforeEach(func() {