feat: add new maps exercise

1 files changed, 46 insertions, 0 deletions

diff --git a/exercises/maps/maps3/main_test.go b/exercises/maps/maps3/main_test.go
new file mode 100644
index 0000000..8e786f1
--- /dev/null
+++ b/exercises/maps/maps3/main_test.go
@@ -0,0 +1,46 @@
+// maps3
+// Make me compile!
+//
+// I AM NOT DONE
+package main
+
+import "testing"
+
+func TestGetPhone(t *testing.T) {
+	phoneBook := map[string]string{
+		"Ana":  "+01 101 102",
+		"John": "+01 333 666",
+	}
+
+	phone, _ := phoneBook["Anna"] // something seems wrong here
+	expectedPhone := "+01 101 102"
+	if phone != expectedPhone {
+		t.Errorf("phone should be %s but got %s", expectedPhone, phone)
+	}
+}
+
+func TestInsertPhone(t *testing.T) {
+	phoneBook := map[string]string{
+		"Ana":  "+01 101 102",
+		"John": "+01 333 666",
+	}
+
+	phone, _ := phoneBook["Laura"] // don't change this line
+	expectedPhone := "+11 99 98 97"
+	if phone != expectedPhone {
+		t.Errorf("phone should be %s but got %s", expectedPhone, phone)
+	}
+}
+
+func TestDeletePhone(t *testing.T) {
+	phoneBook := map[string]string{
+		"Ana":  "+01 101 102",
+		"John": "+01 333 666",
+	} // don't change the original map
+
+	totalPhones := len(phoneBook)
+	expectedTotalPhones := 1
+	if totalPhones != expectedTotalPhones {
+		t.Errorf("phoneBook should have only %d contact, but got %d", expectedTotalPhones, totalPhones)
+	}
+}