added tdd for comment repo, and comment repo

repos/comment_repo_test.go

@@ -0,0 +1,76 @@
+package repos
+
+import (
+	"testing"
+
+	"gitlab.com/rawleyifowler/site-rework/models"
+)
+
+var cr *CommentRepo
+
+func TestInitialize(t *testing.T) {
+	var err error
+	cr, err = NewCommentRepo("dsn")
+	if err != nil {
+
+	}
+}
+
+func TestGetCommentById(t *testing.T) {
+	const ID uint = 1
+	const AUTHOR string = "Whoops"
+	const CONTENT string = "Uhhhhhhhh that wasn't supposed to happen..."
+	// This comment will exist forever on the database, it's part of the test blog post.
+	x := models.Comment{Id: ID, Author: AUTHOR, Content: CONTENT}
+	y, err := cr.GetCommentById(ID)
+	if err != nil {
+		t.Fatalf("Expected: Comment with id: %d should be found without errors.", ID)
+	}
+	if x.Id != y.Id ||
+		x.Author != y.Author ||
+		x.Content != y.Content {
+		t.Fatalf("Expected(left expected, right result):\nid -> %d == %d\nauthor -> %s == %s\ncontent -> %s == %s",
+			ID, y.Id, AUTHOR, y.Author, CONTENT, y.Content)
+	}
+	_, err := cr.GetCommentById(0)
+	if err == nil {
+		t.Fatalf("Expected: Values of less than or equal to 0 are considered illegal values for comment id")
+	}
+}
+
+func TestGetCommentsByAssociatedPost(t *testing.T) {
+	_, err := cr.GetCommentsByAssociatedPost("")
+	if err == nil {
+		t.Fatalf("Expected: Empty values are considered illegal for associated post")
+	}
+	// Wild associated post should return empty array
+	post, err := cr.GetCommentsByAssociatedPost("kjdoJDOWIJWKIJALSKAJSAKIJDOIAj")
+	if len(*post) > 0 {
+		t.Fatalf("Expected: Should return empty array")
+	}
+	if err != nil {
+		t.Fatalf("Expected: Non existant post should not throw error, just empty array")
+	}
+}
+
+func TestGetCommentsByAuthor(t *testing.T) {
+	_, err := cr.GetCommentsByAuthor("")
+	if err == nil {
+		t.Fatalf("Expected: An empty author value should throw an error")
+	}
+}
+
+func TestCreateComment(t *testing.T) {
+	err := cr.CreateComment(nil)
+	if err == nil {
+		t.Fatalf("Expected: Nil values should result in errors when trying to create comments")
+	}
+	err = cr.CreateComment(&models.Comment{})
+	if err == nil {
+		t.Fatalf("Expected: Empty or incomplete models should result in errors.")
+	}
+	err = cr.CreateComment(&models.Comment{Author: "Chuck"})
+	if err == nil {
+		t.Fatalf("Expected: Empty or incomplete models should result in errors.")
+	}
+}