helper_test.go

test command: go test -v helper_test.go helper.go  -cover

helper_test.go

@@ -1,16 +1,59 @@
 package main
 
 import (
+	"strings"
 	"testing"
 )
 
 // test this file: go test helper_test.go helper.go -v
 // test one function: go test -run TestGetFileContentType helper_test.go helper.go -v
 func TestGetFileContentType(t *testing.T) {
-	var zero = []byte("hello")
-	r := GetFileContentType(zero)
-	if r != "text/plain; charset=utf-8" {
-		t.Errorf("Test error for %s", t.Name())
+	var data = []byte("hello")
+	var expected = "text/plain; charset=utf-8"
+	var result = GetFileContentType(data)
+
+	if result != expected {
+		t.Errorf("Result: [%s], Expected: [%s]", result, expected)
 	}
 
 }
+
+// TODO: make a universal logging function
+func TestFileCount(t *testing.T) {
+	var data = ".github"
+	var expected = 2
+	var result = FileCount(data)
+
+	if result != expected {
+		t.Errorf("Result: [%d], Expected: [%d]", result, expected)
+	}
+}
+
+func TestImageExists(t *testing.T) {
+	var data = "./pics/empty.jpg"
+	var result = !ImageExists(data)
+
+	if result {
+		t.Errorf("Result: [%v], Expected: [%v]", result, true)
+	}
+	data = ".pics/empty2.jpg"
+	result = ImageExists(data)
+
+	if result {
+		t.Errorf("Result: [%v], Expected: [%v]", result, false)
+	}
+
+}
+
+func TestGenWebpAbs(t *testing.T) {
+	cwd, cooked := GenWebpAbs("./pics/webp_server.png", "/tmp",
+		"test", "a")
+	if !strings.Contains(cwd, "webp_server_go") {
+		t.Logf("Result: [%v], Expected: [%v]", cwd, "webp_server_go")
+	}
+	var parts = strings.Split(cooked, ".")
+	if parts[0] != "/tmp/test" || parts[2] != "webp" {
+		t.Errorf("Result: [%v], Expected: [%v]", cooked, "/tmp/test.<ts>.webp")
+
+	}
+}