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How to use ContainsKey method of td Package

Best Go-testdeep code snippet using td.ContainsKey

test_api_test.go

Source:test_api_test.go

...114	return mux115}116func TestNewTestAPI(t *testing.T) {117	mux := server()118	containsKey := td.ContainsKey("X-Testdeep-Method")119	t.Run("No error", func(t *testing.T) {120		mockT := tdutil.NewT("test")121		td.CmpFalse(t,122			tdhttp.NewTestAPI(mockT, mux).123				Head("/any").124				CmpStatus(200).125				CmpHeader(containsKey).126				CmpHeader(td.SuperMapOf(http.Header{}, td.MapEntries{127					"X-Testdeep-Method": td.Bag(td.Re(`(?i)^head\z`)),128				})).129				NoBody().130				CmpResponse(td.Code(func(assert *td.T, resp *http.Response) {131					assert.Cmp(resp.StatusCode, 200)132					assert.Cmp(resp.Header, containsKey)...

td_contains_key.go

Source:td_contains_key.go

...10	"github.com/maxatome/go-testdeep/internal/ctxerr"11	"github.com/maxatome/go-testdeep/internal/types"12	"github.com/maxatome/go-testdeep/internal/util"13)14type tdContainsKey struct {15	tdSmugglerBase16}17var _ TestDeep = &tdContainsKey{}18// summary(ContainsKey): checks that a map contains a key19// input(ContainsKey): map20// ContainsKey is a smuggler operator and works on maps only. It21// compares each key of map against expectedValue.22//23//	hash := map[string]int{"foo": 12, "bar": 34, "zip": 28}24//	td.Cmp(t, hash, td.ContainsKey("foo"))             // succeeds25//	td.Cmp(t, hash, td.ContainsKey(td.HasPrefix("z"))) // succeeds26//	td.Cmp(t, hash, td.ContainsKey(td.HasPrefix("x"))) // fails27//28//	hnum := map[int]string{1: "foo", 42: "bar"}29//	td.Cmp(t, hash, td.ContainsKey(42))                 // succeeds30//	td.Cmp(t, hash, td.ContainsKey(td.Between(40, 45))) // succeeds31//32// When ContainsKey(nil) is used, nil is automatically converted to a33// typed nil on the fly to avoid confusion (if the map key type allows34// it of course.) So all following [Cmp] calls are equivalent35// (except the (*byte)(nil) one):36//37//	num := 12338//	hnum := map[*int]bool{&num: true, nil: true}39//	td.Cmp(t, hnum, td.ContainsKey(nil))         // succeeds â (*int)(nil)40//	td.Cmp(t, hnum, td.ContainsKey((*int)(nil))) // succeeds41//	td.Cmp(t, hnum, td.ContainsKey(td.Nil()))    // succeeds42//	// But...43//	td.Cmp(t, hnum, td.ContainsKey((*byte)(nil))) // fails: (*byte)(nil) â  (*int)(nil)44//45// See also [Contains].46func ContainsKey(expectedValue any) TestDeep {47	c := tdContainsKey{48		tdSmugglerBase: newSmugglerBase(expectedValue),49	}50	if !c.isTestDeeper {51		c.expectedValue = reflect.ValueOf(expectedValue)52	}53	return &c54}55func (c *tdContainsKey) doesNotContainKey(ctx ctxerr.Context, got reflect.Value) *ctxerr.Error {56	if ctx.BooleanError {57		return ctxerr.BooleanError58	}59	return ctx.CollectError(&ctxerr.Error{60		Message: "does not contain key",61		Summary: ctxerr.ErrorSummaryItems{62			{63				Label: "expected key",64				Value: util.ToString(c.expectedValue),65			},66			{67				Label: "not in keys",68				Value: util.ToString(tdutil.MapSortedKeys(got)),69			},70		},71	})72}73// getExpectedValue returns the expected value handling the74// Contains(nil) case: in this case it returns a typed nil (same type75// as the keys of got).76// got is a map (it's the caller responsibility to check).77func (c *tdContainsKey) getExpectedValue(got reflect.Value) reflect.Value {78	// If the expectValue is non-typed nil79	if !c.expectedValue.IsValid() {80		// AND the kind of items in got is...81		switch got.Type().Key().Kind() {82		case reflect.Chan, reflect.Func, reflect.Interface,83			reflect.Map, reflect.Ptr, reflect.Slice:84			// returns a typed nil85			return reflect.Zero(got.Type().Key())86		}87	}88	return c.expectedValue89}90func (c *tdContainsKey) Match(ctx ctxerr.Context, got reflect.Value) *ctxerr.Error {91	if got.Kind() == reflect.Map {92		expectedValue := c.getExpectedValue(got)93		// If expected value is a TestDeep operator OR BeLax, check each key94		if c.isTestDeeper || ctx.BeLax {95			for _, k := range got.MapKeys() {96				if deepValueEqualFinalOK(ctx, k, expectedValue) {97					return nil98				}99			}100		} else if expectedValue.IsValid() &&101			got.Type().Key() == expectedValue.Type() &&102			got.MapIndex(expectedValue).IsValid() {103			return nil104		}105		return c.doesNotContainKey(ctx, got)106	}107	if ctx.BooleanError {108		return ctxerr.BooleanError109	}110	var expectedType any111	if c.expectedValue.IsValid() {112		expectedType = types.RawString(c.expectedValue.Type().String())113	} else {114		expectedType = c115	}116	return ctx.CollectError(&ctxerr.Error{117		Message:  "cannot check contains key",118		Got:      types.RawString(got.Type().String()),119		Expected: expectedType,120	})121}122func (c *tdContainsKey) String() string {123	return "ContainsKey(" + util.ToString(c.expectedValue) + ")"124}...

td_contains_key_test.go

Source:td_contains_key_test.go

...8	"fmt"9	"testing"10	"github.com/maxatome/go-testdeep/td"11)12func TestContainsKey(t *testing.T) {13	type MyMap map[int]string14	for idx, got := range []any{15		map[int]string{12: "foo", 34: "bar", 28: "zip"},16		MyMap{12: "foo", 34: "bar", 28: "zip"},17	} {18		testName := fmt.Sprintf("#%d: got=%v", idx, got)19		checkOK(t, got, td.ContainsKey(34), testName)20		checkOK(t, got, td.ContainsKey(td.Between(30, 35)),21			testName)22		checkError(t, got, td.ContainsKey(35),23			expectedError{24				Message: mustBe("does not contain key"),25				Path:    mustBe("DATA"),26				Summary: mustMatch(`expected key: 3527 not in keys: \((12|28|34),28               (12|28|34),29               (12|28|34)\)`),30			}, testName)31		// Lax32		checkOK(t, got, td.Lax(td.ContainsKey(float64(34))), testName)33	}34}35// nil case.36func TestContainsKeyNil(t *testing.T) {37	type MyPtrMap map[*int]int38	num := 1234564239	for idx, got := range []any{40		map[*int]int{&num: 42, nil: 666},41		MyPtrMap{&num: 42, nil: 666},42	} {43		testName := fmt.Sprintf("#%d: got=%v", idx, got)44		checkOK(t, got, td.ContainsKey(nil), testName)45		checkOK(t, got, td.ContainsKey((*int)(nil)), testName)46		checkOK(t, got, td.ContainsKey(td.Nil()), testName)47		checkOK(t, got, td.ContainsKey(td.NotNil()), testName)48		checkError(t, got, td.ContainsKey((*uint8)(nil)),49			expectedError{50				Message: mustBe("does not contain key"),51				Path:    mustBe("DATA"),52				Summary: mustMatch(`expected key: \(\*uint8\)\(<nil>\)53 not in keys: \(\(\*int\)\((<nil>|.*12345642.*)\),54               \(\*int\)\((<nil>|.*12345642.*)\)\)`),55			}, testName)56	}57	checkError(t,58		map[string]int{"foo": 12, "bar": 34, "zip": 28}, // got59		td.ContainsKey(nil),60		expectedError{61			Message: mustBe("does not contain key"),62			Path:    mustBe("DATA"),63			Summary: mustMatch(`expected key: nil64 not in keys: \("(foo|bar|zip)",65               "(foo|bar|zip)",66               "(foo|bar|zip)"\)`),67		})68	checkError(t, "foobar", td.ContainsKey(nil),69		expectedError{70			Message:  mustBe("cannot check contains key"),71			Path:     mustBe("DATA"),72			Got:      mustBe("string"),73			Expected: mustBe("ContainsKey(nil)"),74		})75	checkError(t, "foobar", td.ContainsKey(123),76		expectedError{77			Message:  mustBe("cannot check contains key"),78			Path:     mustBe("DATA"),79			Got:      mustBe("string"),80			Expected: mustBe("int"),81		})82	// Caught by deepValueEqual, before Match() call83	checkError(t, nil, td.ContainsKey(nil),84		expectedError{85			Message:  mustBe("values differ"),86			Path:     mustBe("DATA"),87			Got:      mustBe("nil"),88			Expected: mustBe("ContainsKey(nil)"),89		})90}91func TestContainsKeyTypeBehind(t *testing.T) {92	equalTypes(t, td.ContainsKey("x"), nil)93}...

ContainsKey

Using AI Code Generation

1import "fmt"2func main() {3    td = make(map[string]int)4    if td["one"] == 1 {5        fmt.Println("one is one")6    }7    if td["two"] == 2 {8        fmt.Println("two is two")9    }10    if td["three"] == 3 {11        fmt.Println("three is three")12    }13    if td["four"] == 4 {14        fmt.Println("four is four")15    }16}17import "fmt"18func main() {19    td = make(map[string]int)20    if td["one"] == 1 {21        fmt.Println("one is one")22    }23    if td["two"] == 2 {24        fmt.Println("two is two")25    }26    if td["three"] == 3 {27        fmt.Println("three is three")28    }29    if td["four"] == 4 {30        fmt.Println("four is four")31    }32}33import "fmt"34func main() {35    td = make(map[string]int)36    if td["one"] == 1 {37        fmt.Println("one is one")38    }39    if td["two"] == 2 {40        fmt.Println("two is two")41    }42    if td["three"] == 3 {43        fmt.Println("three is three")44    }45    if td["four"] == 4 {46        fmt.Println("four is four")47    }48}

ContainsKey

Using AI Code Generation

1import "fmt"2func main() {3	m = make(map[string]int)4	fmt.Println(m)5	if _, ok := m["f"]; ok {6		fmt.Println("Key is present")7	} else {8		fmt.Println("Key is not present")9	}10}11import "fmt"12func main() {13	m = make(map[string]int)14	fmt.Println(m)15	if _, ok := m["b"]; ok {16		fmt.Println("Key is present")17	} else {18		fmt.Println("Key is not present")19	}20}21Recommended Posts: Go | Map containsKey() method22Go | Map get() method23Go | Map put() method24Go | Map putIfAbsent() method25Go | Map replace() method26Go | Map remove() method27Go | Map replaceAll() method28Go | Map clear() method29Go | Map keySet() method30Go | Map values() method31Go | Map entrySet() method32Go | Map size() method33Go | Map isEmpty() method34Go | Map containsValue() method35Go | Map compute() method36Go | Map computeIfAbsent() method37Go | Map computeIfPresent() method38Go | Map merge() method39Go | Map forEach() method40Go | Map putAll() method

ContainsKey

Using AI Code Generation

1import "fmt"2func main() {3   td = make(map[string]int)4   if td["one"] == 1 {5      fmt.Println("Element with key one is present")6   }7   if td["eleven"] == 0 {8      fmt.Println("Element with key eleven is not present")9   }10}11import "fmt"12func main() {13   td = make(map[string]int)14   fmt.Println("Elements of td before deleting")15   for key, value := range td {16      fmt.Printf("Key: %s Value: %d\n", key, value)17   }18   delete(td, "one")19   delete(td, "two")20   delete(td, "three")21   fmt.Println("Elements of td after deleting")22   for key, value := range td {23      fmt.Printf("Key: %s Value: %d\n", key, value)24   }25}

ContainsKey

Using AI Code Generation

1import "fmt"2func main() {3    td := map[string]int{"a": 1, "b": 2, "c": 3}4    fmt.Println(td["a"])5    fmt.Println(td["b"])6    fmt.Println(td["c"])7    fmt.Println(td["d"])8}9import "fmt"10func main() {11    td := map[string]int{"a": 1, "b": 2, "c": 3}12    fmt.Println(td["a"])13    fmt.Println(td["b"])14    fmt.Println(td["c"])15    fmt.Println(td["d"])16    fmt.Println(td["e"])17}18import "fmt"19func main() {20    td := map[string]int{"a": 1, "b": 2, "c": 3}21    fmt.Println(td["a"])22    fmt.Println(td["b"])23    fmt.Println(td["c"])24    fmt.Println(td["d"])25    fmt.Println(td["e"])26    fmt.Println(td["f"])27}28import "fmt"29func main() {30    td := map[string]int{"a": 1, "b": 2, "c": 3}31    fmt.Println(td["a"])32    fmt.Println(td["b"])33    fmt.Println(td["c"])34    fmt.Println(td["d"])35    fmt.Println(td["e"])36    fmt.Println(td["f"])37    fmt.Println(td["g"])38}39import "fmt"40func main() {41    td := map[string]int{"a": 1, "b": 2

ContainsKey

Using AI Code Generation

1import (2func main() {3    trie := ctrie.New()4    trie.Put([]byte("hello"), []byte("world"))5    trie.Put([]byte("hello world"), []byte("foo"))6    trie.Put([]byte("hello world!"), []byte("bar"))7    fmt.Println(trie.ContainsKey([]byte("hello")))8    fmt.Println(trie.ContainsKey([]byte("hello world")))9    fmt.Println(trie.ContainsKey([]byte("hello world!")))10    fmt.Println(trie.ContainsKey([]byte("hello world!!")))11}12import (13func main() {14    trie := ctrie.New()15    trie.Put([]byte("hello"), []byte("world"))16    trie.Put([]byte("hello world"), []byte("foo"))17    trie.Put([]byte("hello world!"), []byte("bar"))18    fmt.Println(string(trie.Get([]byte("hello"))))19    fmt.Println(string(trie.Get([]byte("hello world"))))20    fmt.Println(string(trie.Get([]byte("hello world!"))))21    fmt.Println(string(trie.Get([]byte("hello world!!"))))22}23import (24func main() {25    trie := ctrie.New()26    trie.Put([]byte("hello"), []byte("world"))27    trie.Put([]byte("hello world"), []byte("foo"))28    trie.Put([]byte("hello world!"), []byte("bar"))29    fmt.Println(string(trie.Get([]byte("hello"))))30    fmt.Println(string(tr

ContainsKey

Using AI Code Generation

1import (2func main() {3	m := make(map[string]int)4	v := reflect.ValueOf(m)5	t := reflect.TypeOf(m)6	k := reflect.ValueOf("a")7	contains := reflect.ValueOf(t).MethodByName("ContainsKey").Call([]reflect.Value{k})8}

ContainsKey

Using AI Code Generation

1import "fmt"2func main() {3   m := map[string]int{"one": 1, "two": 2, "three": 3}4   if _, ok := m["two"]; ok {5      fmt.Println("Key exists")6   }7   if _, ok := m["four"]; !ok {8      fmt.Println("Key does not exist")9   }10}11Example 3: Get() method12import "fmt"13func main() {14   m := map[string]int{"one": 1, "two": 2, "three": 3}15   if ok {16      fmt.Println("Value:", val)17   }18   if !ok {19      fmt.Println("Value is zero and ok is false")20   }21}22Example 4: GetOrPut() method23import "fmt"24func main() {25   m := map[string]int{"one": 1, "two": 2, "three": 3}26   if ok {27      fmt.Println("Value:", val)28   }29   if !ok {30      fmt.Println("Value is zero and ok is false")31   }32   if !ok {33   }34   fmt.Println("Value:", val)35}36Example 5: Keys() method

ContainsKey

Using AI Code Generation

1import (2func main() {3	t := td.NewTree(100)4	t.Add(50)5	t.Add(150)6	t.Add(25)7	t.Add(75)8	t.Add(125)9	t.Add(175)10	fmt.Println(t.ContainsKey(175))11	fmt.Println(t.ContainsKey(100))12	fmt.Println(t.ContainsKey(150))13	fmt.Println(t.ContainsKey(125))14	fmt.Println(t.ContainsKey(25))15	fmt.Println(t.ContainsKey(75))16	fmt.Println(t.ContainsKey(175))17}18func (t *Tree) ContainsKey(key int) bool {19	if t.root == nil {20	}21	node := t.find(t.root, key)22	if node == nil {23	}24}25import (26func main() {27	t := td.NewTree(100)28	t.Add(50)29	t.Add(150)30	t.Add(25)31	t.Add(75)32	t.Add(125)33	t.Add(175)34	fmt.Println(t.Get(175))35	fmt.Println(t.Get(100))

ContainsKey

Using AI Code Generation

1import "fmt"2func main() {3    var td = map[string] string {4    }5    if _, ok := td["A"]; ok {6        fmt.Println("Key Exists")7    } else {8        fmt.Println("Key doesn't exist")9    }10    if _, ok := td["D"]; ok {11        fmt.Println("Key Exists")12    } else {13        fmt.Println("Key doesn't exist")14    }15}

ContainsKey

Using AI Code Generation

1import (2func main() {3	countryPopulation := map[string]int{4	}5	if ok {6		fmt.Println("USA is present in the map")7	} else {8		fmt.Println("USA is not present in the map")9	}10}11import (12func main() {13	countryPopulation := map[string]int{14	}15	if ok {16		fmt.Println("USA is present in the map")17	} else {18		fmt.Println("USA is not present in the map")19	}20}21import (22func main() {23	countryPopulation := map[string]int{

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