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272 lines
10 KiB
272 lines
10 KiB
package check_test
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import (
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"errors"
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"gopkg.in/check.v1"
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"reflect"
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"runtime"
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)
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type CheckersS struct{}
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var _ = check.Suite(&CheckersS{})
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func testInfo(c *check.C, checker check.Checker, name string, paramNames []string) {
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info := checker.Info()
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if info.Name != name {
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c.Fatalf("Got name %s, expected %s", info.Name, name)
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}
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if !reflect.DeepEqual(info.Params, paramNames) {
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c.Fatalf("Got param names %#v, expected %#v", info.Params, paramNames)
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}
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}
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func testCheck(c *check.C, checker check.Checker, result bool, error string, params ...interface{}) ([]interface{}, []string) {
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info := checker.Info()
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if len(params) != len(info.Params) {
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c.Fatalf("unexpected param count in test; expected %d got %d", len(info.Params), len(params))
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}
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names := append([]string{}, info.Params...)
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result_, error_ := checker.Check(params, names)
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if result_ != result || error_ != error {
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c.Fatalf("%s.Check(%#v) returned (%#v, %#v) rather than (%#v, %#v)",
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info.Name, params, result_, error_, result, error)
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}
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return params, names
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}
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func (s *CheckersS) TestComment(c *check.C) {
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bug := check.Commentf("a %d bc", 42)
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comment := bug.CheckCommentString()
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if comment != "a 42 bc" {
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c.Fatalf("Commentf returned %#v", comment)
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}
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}
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func (s *CheckersS) TestIsNil(c *check.C) {
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testInfo(c, check.IsNil, "IsNil", []string{"value"})
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testCheck(c, check.IsNil, true, "", nil)
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testCheck(c, check.IsNil, false, "", "a")
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testCheck(c, check.IsNil, true, "", (chan int)(nil))
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testCheck(c, check.IsNil, false, "", make(chan int))
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testCheck(c, check.IsNil, true, "", (error)(nil))
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testCheck(c, check.IsNil, false, "", errors.New(""))
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testCheck(c, check.IsNil, true, "", ([]int)(nil))
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testCheck(c, check.IsNil, false, "", make([]int, 1))
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testCheck(c, check.IsNil, false, "", int(0))
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}
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func (s *CheckersS) TestNotNil(c *check.C) {
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testInfo(c, check.NotNil, "NotNil", []string{"value"})
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testCheck(c, check.NotNil, false, "", nil)
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testCheck(c, check.NotNil, true, "", "a")
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testCheck(c, check.NotNil, false, "", (chan int)(nil))
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testCheck(c, check.NotNil, true, "", make(chan int))
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testCheck(c, check.NotNil, false, "", (error)(nil))
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testCheck(c, check.NotNil, true, "", errors.New(""))
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testCheck(c, check.NotNil, false, "", ([]int)(nil))
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testCheck(c, check.NotNil, true, "", make([]int, 1))
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}
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func (s *CheckersS) TestNot(c *check.C) {
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testInfo(c, check.Not(check.IsNil), "Not(IsNil)", []string{"value"})
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testCheck(c, check.Not(check.IsNil), false, "", nil)
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testCheck(c, check.Not(check.IsNil), true, "", "a")
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}
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type simpleStruct struct {
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i int
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}
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func (s *CheckersS) TestEquals(c *check.C) {
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testInfo(c, check.Equals, "Equals", []string{"obtained", "expected"})
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// The simplest.
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testCheck(c, check.Equals, true, "", 42, 42)
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testCheck(c, check.Equals, false, "", 42, 43)
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// Different native types.
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testCheck(c, check.Equals, false, "", int32(42), int64(42))
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// With nil.
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testCheck(c, check.Equals, false, "", 42, nil)
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// Slices
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testCheck(c, check.Equals, false, "runtime error: comparing uncomparable type []uint8", []byte{1, 2}, []byte{1, 2})
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// Struct values
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testCheck(c, check.Equals, true, "", simpleStruct{1}, simpleStruct{1})
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testCheck(c, check.Equals, false, "", simpleStruct{1}, simpleStruct{2})
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// Struct pointers
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testCheck(c, check.Equals, false, "", &simpleStruct{1}, &simpleStruct{1})
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testCheck(c, check.Equals, false, "", &simpleStruct{1}, &simpleStruct{2})
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}
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func (s *CheckersS) TestDeepEquals(c *check.C) {
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testInfo(c, check.DeepEquals, "DeepEquals", []string{"obtained", "expected"})
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// The simplest.
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testCheck(c, check.DeepEquals, true, "", 42, 42)
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testCheck(c, check.DeepEquals, false, "", 42, 43)
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// Different native types.
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testCheck(c, check.DeepEquals, false, "", int32(42), int64(42))
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// With nil.
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testCheck(c, check.DeepEquals, false, "", 42, nil)
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// Slices
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testCheck(c, check.DeepEquals, true, "", []byte{1, 2}, []byte{1, 2})
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testCheck(c, check.DeepEquals, false, "", []byte{1, 2}, []byte{1, 3})
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// Struct values
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testCheck(c, check.DeepEquals, true, "", simpleStruct{1}, simpleStruct{1})
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testCheck(c, check.DeepEquals, false, "", simpleStruct{1}, simpleStruct{2})
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// Struct pointers
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testCheck(c, check.DeepEquals, true, "", &simpleStruct{1}, &simpleStruct{1})
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testCheck(c, check.DeepEquals, false, "", &simpleStruct{1}, &simpleStruct{2})
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}
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func (s *CheckersS) TestHasLen(c *check.C) {
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testInfo(c, check.HasLen, "HasLen", []string{"obtained", "n"})
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testCheck(c, check.HasLen, true, "", "abcd", 4)
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testCheck(c, check.HasLen, true, "", []int{1, 2}, 2)
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testCheck(c, check.HasLen, false, "", []int{1, 2}, 3)
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testCheck(c, check.HasLen, false, "n must be an int", []int{1, 2}, "2")
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testCheck(c, check.HasLen, false, "obtained value type has no length", nil, 2)
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}
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func (s *CheckersS) TestErrorMatches(c *check.C) {
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testInfo(c, check.ErrorMatches, "ErrorMatches", []string{"value", "regex"})
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testCheck(c, check.ErrorMatches, false, "Error value is nil", nil, "some error")
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testCheck(c, check.ErrorMatches, false, "Value is not an error", 1, "some error")
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testCheck(c, check.ErrorMatches, true, "", errors.New("some error"), "some error")
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testCheck(c, check.ErrorMatches, true, "", errors.New("some error"), "so.*or")
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// Verify params mutation
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params, names := testCheck(c, check.ErrorMatches, false, "", errors.New("some error"), "other error")
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c.Assert(params[0], check.Equals, "some error")
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c.Assert(names[0], check.Equals, "error")
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}
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func (s *CheckersS) TestMatches(c *check.C) {
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testInfo(c, check.Matches, "Matches", []string{"value", "regex"})
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// Simple matching
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testCheck(c, check.Matches, true, "", "abc", "abc")
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testCheck(c, check.Matches, true, "", "abc", "a.c")
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// Must match fully
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testCheck(c, check.Matches, false, "", "abc", "ab")
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testCheck(c, check.Matches, false, "", "abc", "bc")
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// String()-enabled values accepted
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testCheck(c, check.Matches, true, "", reflect.ValueOf("abc"), "a.c")
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testCheck(c, check.Matches, false, "", reflect.ValueOf("abc"), "a.d")
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// Some error conditions.
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testCheck(c, check.Matches, false, "Obtained value is not a string and has no .String()", 1, "a.c")
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testCheck(c, check.Matches, false, "Can't compile regex: error parsing regexp: missing closing ]: `[c$`", "abc", "a[c")
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}
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func (s *CheckersS) TestPanics(c *check.C) {
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testInfo(c, check.Panics, "Panics", []string{"function", "expected"})
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// Some errors.
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testCheck(c, check.Panics, false, "Function has not panicked", func() bool { return false }, "BOOM")
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testCheck(c, check.Panics, false, "Function must take zero arguments", 1, "BOOM")
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// Plain strings.
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testCheck(c, check.Panics, true, "", func() { panic("BOOM") }, "BOOM")
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testCheck(c, check.Panics, false, "", func() { panic("KABOOM") }, "BOOM")
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testCheck(c, check.Panics, true, "", func() bool { panic("BOOM") }, "BOOM")
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// Error values.
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testCheck(c, check.Panics, true, "", func() { panic(errors.New("BOOM")) }, errors.New("BOOM"))
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testCheck(c, check.Panics, false, "", func() { panic(errors.New("KABOOM")) }, errors.New("BOOM"))
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type deep struct{ i int }
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// Deep value
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testCheck(c, check.Panics, true, "", func() { panic(&deep{99}) }, &deep{99})
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// Verify params/names mutation
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params, names := testCheck(c, check.Panics, false, "", func() { panic(errors.New("KABOOM")) }, errors.New("BOOM"))
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c.Assert(params[0], check.ErrorMatches, "KABOOM")
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c.Assert(names[0], check.Equals, "panic")
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// Verify a nil panic
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testCheck(c, check.Panics, true, "", func() { panic(nil) }, nil)
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testCheck(c, check.Panics, false, "", func() { panic(nil) }, "NOPE")
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}
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func (s *CheckersS) TestPanicMatches(c *check.C) {
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testInfo(c, check.PanicMatches, "PanicMatches", []string{"function", "expected"})
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// Error matching.
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testCheck(c, check.PanicMatches, true, "", func() { panic(errors.New("BOOM")) }, "BO.M")
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testCheck(c, check.PanicMatches, false, "", func() { panic(errors.New("KABOOM")) }, "BO.M")
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// Some errors.
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testCheck(c, check.PanicMatches, false, "Function has not panicked", func() bool { return false }, "BOOM")
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testCheck(c, check.PanicMatches, false, "Function must take zero arguments", 1, "BOOM")
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// Plain strings.
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testCheck(c, check.PanicMatches, true, "", func() { panic("BOOM") }, "BO.M")
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testCheck(c, check.PanicMatches, false, "", func() { panic("KABOOM") }, "BOOM")
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testCheck(c, check.PanicMatches, true, "", func() bool { panic("BOOM") }, "BO.M")
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// Verify params/names mutation
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params, names := testCheck(c, check.PanicMatches, false, "", func() { panic(errors.New("KABOOM")) }, "BOOM")
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c.Assert(params[0], check.Equals, "KABOOM")
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c.Assert(names[0], check.Equals, "panic")
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// Verify a nil panic
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testCheck(c, check.PanicMatches, false, "Panic value is not a string or an error", func() { panic(nil) }, "")
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}
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func (s *CheckersS) TestFitsTypeOf(c *check.C) {
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testInfo(c, check.FitsTypeOf, "FitsTypeOf", []string{"obtained", "sample"})
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// Basic types
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testCheck(c, check.FitsTypeOf, true, "", 1, 0)
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testCheck(c, check.FitsTypeOf, false, "", 1, int64(0))
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// Aliases
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testCheck(c, check.FitsTypeOf, false, "", 1, errors.New(""))
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testCheck(c, check.FitsTypeOf, false, "", "error", errors.New(""))
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testCheck(c, check.FitsTypeOf, true, "", errors.New("error"), errors.New(""))
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// Structures
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testCheck(c, check.FitsTypeOf, false, "", 1, simpleStruct{})
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testCheck(c, check.FitsTypeOf, false, "", simpleStruct{42}, &simpleStruct{})
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testCheck(c, check.FitsTypeOf, true, "", simpleStruct{42}, simpleStruct{})
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testCheck(c, check.FitsTypeOf, true, "", &simpleStruct{42}, &simpleStruct{})
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// Some bad values
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testCheck(c, check.FitsTypeOf, false, "Invalid sample value", 1, interface{}(nil))
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testCheck(c, check.FitsTypeOf, false, "", interface{}(nil), 0)
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}
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func (s *CheckersS) TestImplements(c *check.C) {
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testInfo(c, check.Implements, "Implements", []string{"obtained", "ifaceptr"})
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var e error
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var re runtime.Error
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testCheck(c, check.Implements, true, "", errors.New(""), &e)
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testCheck(c, check.Implements, false, "", errors.New(""), &re)
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// Some bad values
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testCheck(c, check.Implements, false, "ifaceptr should be a pointer to an interface variable", 0, errors.New(""))
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testCheck(c, check.Implements, false, "ifaceptr should be a pointer to an interface variable", 0, interface{}(nil))
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testCheck(c, check.Implements, false, "", interface{}(nil), &e)
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}
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