test: use testify assert on all tests

utils/files/filereader_test.go

@@ -1,7 +1,7 @@
 package files
 
 import (
-	"reflect"
+	"github.com/stretchr/testify/assert"
 	"testing"
 )
 
@@ -12,10 +12,7 @@ func TestReadLines(t *testing.T) {
 		expected := []string{"this", "is", "a", "test", "file"}
 		actual := ReadLines("./input.txt")
 
-		if !reflect.DeepEqual(expected, actual) {
-			t.Errorf("Expected %s but actual was %s", expected, actual)
-		}
-
+		assert.Equal(t, expected, actual)
 	})
 
 }
@@ -25,8 +22,6 @@ func TestRead(t *testing.T) {
 		expected := "this\nis\na\ntest\nfile"
 		actual := Read("./input.txt")
 
-		if expected != actual {
-			t.Errorf("Expected %s but actual was %s", expected, actual)
-		}
+		assert.Equal(t, expected, actual)
 	})
 }

utils/ints/ints_test.go

@@ -1,16 +1,16 @@
 package ints
 
-import "testing"
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
 
 func TestSumList(t *testing.T) {
 
 	t.Run("Should total all values in a list of ints", func(t *testing.T) {
 		expected := 6
 		actual := Sum([]int{1, 2, 3})
-		if expected != actual {
-			t.Fail()
-			t.Logf("Expected %d but actual was %d", expected, actual)
-		}
+		assert.Equal(t, expected, actual)
 	})
 
 }
@@ -20,18 +20,10 @@ func TestFromString(t *testing.T) {
 	t.Run("Should convert string to int", func(t *testing.T) {
 		expected := 2113
 		actual := FromString("2113")
-		if expected != actual {
-			t.Errorf("Expected %d but actual was %d", expected, actual)
-		}
+		assert.Equal(t, expected, actual)
 	})
 
 	t.Run("Should panic if provide a string that cannot be turned into an int", func(t *testing.T) {
-		defer func() {
-			if r := recover(); r == nil {
-				t.Errorf("Expected code to panic")
-			}
-		}()
-
-		FromString("test")
+		assert.Panics(t, func() { FromString("test") })
 	})
 }

utils/strings/strings_test.go

@@ -1,6 +1,9 @@
 package strings
 
-import "testing"
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
 
 func TestHasAllUniqueRunes(t *testing.T) {
 	type args struct {
@@ -39,9 +42,7 @@ func TestHasAllUniqueRunes(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if got := HasAllUniqueRunes(tt.args.input); got != tt.want {
-				t.Errorf("HasAllUniqueRunes() = %v, want %v", got, tt.want)
-			}
+			assert.Equal(t, tt.want, HasAllUniqueRunes(tt.args.input))
 		})
 	}
 }