Add tests for if/else if/else/if

Signed-off-by: Marcel Müller <neikos@neikos.email>

src/ast/mod.rs

@@ -675,11 +675,61 @@ mod tests {
     }
 
     #[test]
-    fn check_empty_output() {
+    fn check_empty_if_output() {
         let input = "{{ if foo }}{{ end }}";
 
         let parsed = crate::parser::parse(input.into()).unwrap();
 
-        panic_pretty(input, parse(parsed.tokens()));
+        let ast = panic_pretty(input, parse(parsed.tokens()));
+
+        insta::assert_debug_snapshot!(ast, @r#"
+        TemplateAst {
+            root: [
+                ConditionalChain {
+                    chain: [
+                        IfConditional {
+                            if_block: Block {
+                                prev_whitespace_content: None,
+                                expression: VariableAccess(
+                                    [Ident]"foo" (6..9),
+                                ),
+                                post_whitespace_content: None,
+                            },
+                        },
+                        ConditionalContent {
+                            content: [],
+                        },
+                        Block {
+                            prev_whitespace_content: None,
+                            expression: EndBlock,
+                            post_whitespace_content: None,
+                        },
+                    ],
+                },
+            ],
+        }
+        "#);
+    }
+
+    #[test]
+    fn check_if_else() {
+        let input = "{{ if foo }} foo {{ else }} bar {{ end }}";
+
+        let parsed = crate::parser::parse(input.into()).unwrap();
+
+        let ast = panic_pretty(input, parse(parsed.tokens()));
+
+        insta::assert_debug_snapshot!(ast);
+    }
+
+    #[test]
+    fn check_if_else_if() {
+        let input = "{{ if foo }} foo {{ else if bar }} bar {{ end }}";
+
+        let parsed = crate::parser::parse(input.into()).unwrap();
+
+        let ast = panic_pretty(input, parse(parsed.tokens()));
+
+        insta::assert_debug_snapshot!(ast);
     }
 }