github.com/onsi/gomega@v1.32.0/matchers/contain_substring_matcher_test.go (about)

     1  package matchers_test
     2  
     3  import (
     4  	. "github.com/onsi/ginkgo/v2"
     5  	. "github.com/onsi/gomega"
     6  	. "github.com/onsi/gomega/matchers"
     7  )
     8  
     9  var _ = Describe("ContainSubstringMatcher", func() {
    10  	When("actual is a string", func() {
    11  		It("should match against the string", func() {
    12  			Expect("Marvelous").Should(ContainSubstring("rve"))
    13  			Expect("Marvelous").ShouldNot(ContainSubstring("boo"))
    14  		})
    15  	})
    16  
    17  	When("the matcher is called with multiple arguments", func() {
    18  		It("should pass the string and arguments to sprintf", func() {
    19  			Expect("Marvelous3").Should(ContainSubstring("velous%d", 3))
    20  		})
    21  	})
    22  
    23  	When("actual is a stringer", func() {
    24  		It("should call the stringer and match agains the returned string", func() {
    25  			Expect(&myStringer{a: "Abc3"}).Should(ContainSubstring("bc3"))
    26  		})
    27  	})
    28  
    29  	When("actual is neither a string nor a stringer", func() {
    30  		It("should error", func() {
    31  			success, err := (&ContainSubstringMatcher{Substr: "2"}).Match(2)
    32  			Expect(success).Should(BeFalse())
    33  			Expect(err).Should(HaveOccurred())
    34  		})
    35  	})
    36  })