Add calc tests

calc/abs_test.go

@@ -0,0 +1,11 @@
+package calc
+
+import (
+	"testing"
+)
+
+func TestAbs(t *testing.T) {
+	if Abs(-1) != 1 || Abs(1) != 1 {
+		t.Errorf("abs doesn't work")
+	}
+}

calc/max_test.go

@@ -0,0 +1,21 @@
+package calc
+
+import "testing"
+
+func TestMax(t *testing.T) {
+	if Max(1_000_000, 2) != 1_000_000 {
+		t.Errorf("max doesn't work")
+	}
+	if Max(-1, 1_000_000) != 1_000_000 {
+		t.Errorf("max doesn't work")
+	}
+}
+
+func TestMax64(t *testing.T) {
+	if Max64(1_000_000_000_000, 2) != 1_000_000_000_000 {
+		t.Errorf("max64 doesn't work")
+	}
+	if Max64(-1, 1_000_000_000_000) != 1_000_000_000_000 {
+		t.Errorf("max64 doesn't work")
+	}
+}

calc/min_test.go

@@ -0,0 +1,21 @@
+package calc
+
+import "testing"
+
+func TestMin(t *testing.T) {
+	if Min(1_000_000, 2) != 2 {
+		t.Errorf("Min doesn't work")
+	}
+	if Min(-1, 1_000_000) != -1 {
+		t.Errorf("Min doesn't work")
+	}
+}
+
+func TestMin64(t *testing.T) {
+	if Min64(1_000_000_000_000, 2) != 2 {
+		t.Errorf("Min64 doesn't work")
+	}
+	if Min64(-1, 1_000_000_000_000) != -1 {
+		t.Errorf("Min64 doesn't work")
+	}
+}