Implement isEmpty predicate

Signed-off-by: Rached Mejri <rached.mejri@orange.com>
Orange-OpenSource · Mar 10, 2023 · c0e5191 · c0e5191
1 parent d2eceb2
commit c0e5191
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diff --git a/integration/tests_failed/assert_xpath.html b/integration/tests_failed/assert_xpath.html
@@ -2,4 +2,5 @@
 </span><span class="response"><span class="line"><span class="version">HTTP</span> <span class="number">200</span></span>
 <span class="line section-header">[Asserts]</span>
 <span class="line"><span class="query-type">xpath</span> <span class="string">"strong(//head/title)"</span> <span class="predicate-type">equals</span> <span class="string">"Welcome to Quiz!"</span></span>
+<span class="line"><span class="query-type">xpath</span> <span class="string">"strong(//head/title)"</span> <span class="predicate-type">isEmpty</span></span>
 </span></span></code></pre>
diff --git a/integration/tests_failed/assert_xpath.hurl b/integration/tests_failed/assert_xpath.hurl
@@ -2,3 +2,4 @@ GET http://localhost:8000/error-assert-xpath
 HTTP 200
 [Asserts]
 xpath "strong(//head/title)" equals "Welcome to Quiz!"
+xpath "strong(//head/title)" isEmpty
diff --git a/integration/tests_failed/assert_xpath.json b/integration/tests_failed/assert_xpath.json
@@ -1 +1 @@
-{"entries":[{"request":{"method":"GET","url":"http://localhost:8000/error-assert-xpath"},"response":{"status":200,"asserts":[{"query":{"type":"xpath","expr":"strong(//head/title)"},"predicate":{"type":"equal","value":"Welcome to Quiz!"}}]}}]}
+{"entries":[{"request":{"method":"GET","url":"http://localhost:8000/error-assert-xpath"},"response":{"status":200,"asserts":[{"query":{"type":"xpath","expr":"strong(//head/title)"},"predicate":{"type":"equal","value":"Welcome to Quiz!"}},{"query":{"type":"xpath","expr":"strong(//head/title)"},"predicate":{"type":"isEmpty"}}]}}]}
diff --git a/integration/tests_ok/assert_json.html b/integration/tests_ok/assert_json.html
@@ -30,6 +30,7 @@
 <span class="line"><span class="query-type">jsonpath</span> <span class="string">"$.errors"</span> <span class="filter-type">count</span> <span class="predicate-type">==</span> <span class="number">2</span></span>
 <span class="line"><span class="query-type">jsonpath</span> <span class="string">"$.errors"</span> <span class="predicate-type">isCollection</span></span>
 <span class="line"><span class="query-type">jsonpath</span> <span class="string">"$.warnings"</span> <span class="filter-type">count</span> <span class="predicate-type">==</span> <span class="number">0</span></span>
+<span class="line"><span class="query-type">jsonpath</span> <span class="string">"$.warnings"</span> <span class="predicate-type">isEmpty</span></span>
 <span class="line"><span class="query-type">jsonpath</span> <span class="string">"$.toto"</span> <span class="not">not</span> <span class="predicate-type">exists</span></span>
 <span class="line"><span class="query-type">jsonpath</span> <span class="string">"$.warnings"</span> <span class="predicate-type">exists</span></span>
 <span class="line"><span class="query-type">jsonpath</span> <span class="string">"$.warnings"</span> <span class="predicate-type">exists</span></span>

diff --git a/integration/tests_ok/assert_json.hurl b/integration/tests_ok/assert_json.hurl
@@ -30,6 +30,7 @@ jsonpath "$.success" isBoolean
 jsonpath "$.errors" count == 2
 jsonpath "$.errors" isCollection
 jsonpath "$.warnings" count == 0
+jsonpath "$.warnings" isEmpty
 jsonpath "$.toto" not exists
 jsonpath "$.warnings" exists
 jsonpath "$.warnings" exists

diff --git a/integration/tests_ok/assert_json.json b/integration/tests_ok/assert_json.json
@@ -1 +1 @@
-{"entries":[{"request":{"method":"GET","url":"http://localhost:8000/assert-json"},"response":{"status":200,"captures":[{"name":"count","query":{"type":"jsonpath","expr":"$.count"}}],"asserts":[{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"equal","value":5}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"equal","value":5.0}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"equal","value":"five"}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"equal","value":5}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"not-equal","value":4}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"not-equal","value":"four"}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"not":true,"type":"equal","value":4}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"greater","value":1}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"greater","value":"one"}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"greater","value":1.0}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"greater","value":1.0}},{"query":{"type":"jsonpath","expr":"$.success"},"predicate":{"type":"equal","value":false}},{"query":{"type":"jsonpath","expr":"$.success"},"predicate":{"type":"not-equal","value":null}},{"query":{"type":"jsonpath","expr":"$.success"},"predicate":{"type":"exist"}},{"query":{"type":"jsonpath","expr":"$.success"},"predicate":{"type":"isBoolean"}},{"query":{"type":"jsonpath","expr":"$.errors"},"filters":[{"type":"count"}],"predicate":{"type":"equal","value":2}},{"query":{"type":"jsonpath","expr":"$.errors"},"predicate":{"type":"isCollection"}},{"query":{"type":"jsonpath","expr":"$.warnings"},"filters":[{"type":"count"}],"predicate":{"type":"equal","value":0}},{"query":{"type":"jsonpath","expr":"$.toto"},"predicate":{"not":true,"type":"exist"}},{"query":{"type":"jsonpath","expr":"$.warnings"},"predicate":{"type":"exist"}},{"query":{"type":"jsonpath","expr":"$.warnings"},"predicate":{"type":"exist"}},{"query":{"type":"jsonpath","expr":"$.errors[0]"},"predicate":{"type":"exist"}},{"query":{"type":"jsonpath","expr":"$.errors[0]"},"predicate":{"type":"isCollection"}},{"query":{"type":"jsonpath","expr":"$.errors[0].id"},"predicate":{"type":"equal","value":"error1"}},{"query":{"type":"jsonpath","expr":"$.errors[0]['id']"},"predicate":{"type":"equal","value":"error1"}},{"query":{"type":"jsonpath","expr":"$.errors[*].id"},"predicate":{"type":"include","value":"error1"}},{"query":{"type":"jsonpath","expr":"$.errors[?(@.id=='error1')].id"},"predicate":{"type":"equal","value":"error1"}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"equal","value":1.5}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"less-or-equal","value":2.0}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"less","value":2}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"less","value":"two"}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"less-or-equal","value":2.0}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"less","value":2}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"isFloat"}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"not":true,"type":"isInteger"}},{"query":{"type":"jsonpath","expr":"$.nullable"},"predicate":{"type":"equal","value":null}},{"query":{"type":"jsonpath","expr":"$.tags[0]"},"predicate":{"type":"equal","value":"test"}},{"query":{"type":"jsonpath","expr":"$.tags[0]"},"predicate":{"type":"greater","value":"te"}},{"query":{"type":"jsonpath","expr":"$.tags[0]"},"predicate":{"type":"less","value":"testabc"}},{"query":{"type":"jsonpath","expr":"$.tags[0]"},"predicate":{"type":"less-or-equal","value":"test"}},{"query":{"type":"jsonpath","expr":"$.tags[0]"},"predicate":{"type":"greater","value":"{{foo}}"}},{"query":{"type":"jsonpath","expr":"$.profile-id"},"predicate":{"type":"equal","value":"123abc"}},{"query":{"type":"jsonpath","expr":"$['profile-id']"},"predicate":{"type":"equal","value":"123abc"}}],"body":{"type":"json","value":{"count":5,"success":false,"errors":[{"id":"error1"},{"id":"error2"}],"warnings":[],"duration":1.5,"tags":["test"],"nullable":null,"profile-id":"123abc"}}}},{"request":{"method":"GET","url":"http://localhost:8000/assert-json/index"},"response":{"status":200,"captures":[{"name":"index","query":{"type":"body"}}]}},{"request":{"method":"GET","url":"http://localhost:8000/assert-json"},"response":{"status":200,"asserts":[{"query":{"type":"jsonpath","expr":"$.errors[{{index}}].id"},"predicate":{"type":"equal","value":"error2"}},{"query":{"type":"jsonpath","expr":"$.tags"},"predicate":{"type":"include","value":"test"}},{"query":{"type":"jsonpath","expr":"$.tags"},"predicate":{"not":true,"type":"include","value":"prod"}},{"query":{"type":"jsonpath","expr":"$.tags"},"predicate":{"not":true,"type":"include","value":null}}]}},{"request":{"method":"GET","url":"http://localhost:8000/assert-json/list"},"response":{"status":200,"asserts":[{"query":{"type":"jsonpath","expr":"$"},"filters":[{"type":"count"}],"predicate":{"type":"equal","value":2}},{"query":{"type":"jsonpath","expr":"$.[0].name"},"predicate":{"type":"equal","value":"Bob"}},{"query":{"type":"jsonpath","expr":"$[0].name"},"predicate":{"type":"equal","value":"Bob"}}]}},{"request":{"method":"GET","url":"http://localhost:8000/assert-json/filter"},"response":{"status":200,"asserts":[{"query":{"type":"jsonpath","expr":"$.fruit[?(@.price.US==200)].name"},"predicate":{"type":"equal","value":"grape"}}]}}]}
+{"entries":[{"request":{"method":"GET","url":"http://localhost:8000/assert-json"},"response":{"status":200,"captures":[{"name":"count","query":{"type":"jsonpath","expr":"$.count"}}],"asserts":[{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"equal","value":5}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"equal","value":5.0}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"equal","value":"five"}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"equal","value":5}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"not-equal","value":4}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"not-equal","value":"four"}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"not":true,"type":"equal","value":4}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"greater","value":1}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"greater","value":"one"}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"greater","value":1.0}},{"query":{"type":"jsonpath","expr":"$.count"},"predicate":{"type":"greater","value":1.0}},{"query":{"type":"jsonpath","expr":"$.success"},"predicate":{"type":"equal","value":false}},{"query":{"type":"jsonpath","expr":"$.success"},"predicate":{"type":"not-equal","value":null}},{"query":{"type":"jsonpath","expr":"$.success"},"predicate":{"type":"exist"}},{"query":{"type":"jsonpath","expr":"$.success"},"predicate":{"type":"isBoolean"}},{"query":{"type":"jsonpath","expr":"$.errors"},"filters":[{"type":"count"}],"predicate":{"type":"equal","value":2}},{"query":{"type":"jsonpath","expr":"$.errors"},"predicate":{"type":"isCollection"}},{"query":{"type":"jsonpath","expr":"$.warnings"},"filters":[{"type":"count"}],"predicate":{"type":"equal","value":0}},{"query":{"type":"jsonpath","expr":"$.warnings"},"predicate":{"type":"isEmpty"}},{"query":{"type":"jsonpath","expr":"$.toto"},"predicate":{"not":true,"type":"exist"}},{"query":{"type":"jsonpath","expr":"$.warnings"},"predicate":{"type":"exist"}},{"query":{"type":"jsonpath","expr":"$.warnings"},"predicate":{"type":"exist"}},{"query":{"type":"jsonpath","expr":"$.errors[0]"},"predicate":{"type":"exist"}},{"query":{"type":"jsonpath","expr":"$.errors[0]"},"predicate":{"type":"isCollection"}},{"query":{"type":"jsonpath","expr":"$.errors[0].id"},"predicate":{"type":"equal","value":"error1"}},{"query":{"type":"jsonpath","expr":"$.errors[0]['id']"},"predicate":{"type":"equal","value":"error1"}},{"query":{"type":"jsonpath","expr":"$.errors[*].id"},"predicate":{"type":"include","value":"error1"}},{"query":{"type":"jsonpath","expr":"$.errors[?(@.id=='error1')].id"},"predicate":{"type":"equal","value":"error1"}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"equal","value":1.5}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"less-or-equal","value":2.0}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"less","value":2}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"less","value":"two"}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"less-or-equal","value":2.0}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"less","value":2}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"type":"isFloat"}},{"query":{"type":"jsonpath","expr":"$.duration"},"predicate":{"not":true,"type":"isInteger"}},{"query":{"type":"jsonpath","expr":"$.nullable"},"predicate":{"type":"equal","value":null}},{"query":{"type":"jsonpath","expr":"$.tags[0]"},"predicate":{"type":"equal","value":"test"}},{"query":{"type":"jsonpath","expr":"$.tags[0]"},"predicate":{"type":"greater","value":"te"}},{"query":{"type":"jsonpath","expr":"$.tags[0]"},"predicate":{"type":"less","value":"testabc"}},{"query":{"type":"jsonpath","expr":"$.tags[0]"},"predicate":{"type":"less-or-equal","value":"test"}},{"query":{"type":"jsonpath","expr":"$.tags[0]"},"predicate":{"type":"greater","value":"{{foo}}"}},{"query":{"type":"jsonpath","expr":"$.profile-id"},"predicate":{"type":"equal","value":"123abc"}},{"query":{"type":"jsonpath","expr":"$['profile-id']"},"predicate":{"type":"equal","value":"123abc"}}],"body":{"type":"json","value":{"count":5,"success":false,"errors":[{"id":"error1"},{"id":"error2"}],"warnings":[],"duration":1.5,"tags":["test"],"nullable":null,"profile-id":"123abc"}}}},{"request":{"method":"GET","url":"http://localhost:8000/assert-json/index"},"response":{"status":200,"captures":[{"name":"index","query":{"type":"body"}}]}},{"request":{"method":"GET","url":"http://localhost:8000/assert-json"},"response":{"status":200,"asserts":[{"query":{"type":"jsonpath","expr":"$.errors[{{index}}].id"},"predicate":{"type":"equal","value":"error2"}},{"query":{"type":"jsonpath","expr":"$.tags"},"predicate":{"type":"include","value":"test"}},{"query":{"type":"jsonpath","expr":"$.tags"},"predicate":{"not":true,"type":"include","value":"prod"}},{"query":{"type":"jsonpath","expr":"$.tags"},"predicate":{"not":true,"type":"include","value":null}}]}},{"request":{"method":"GET","url":"http://localhost:8000/assert-json/list"},"response":{"status":200,"asserts":[{"query":{"type":"jsonpath","expr":"$"},"filters":[{"type":"count"}],"predicate":{"type":"equal","value":2}},{"query":{"type":"jsonpath","expr":"$.[0].name"},"predicate":{"type":"equal","value":"Bob"}},{"query":{"type":"jsonpath","expr":"$[0].name"},"predicate":{"type":"equal","value":"Bob"}}]}},{"request":{"method":"GET","url":"http://localhost:8000/assert-json/filter"},"response":{"status":200,"asserts":[{"query":{"type":"jsonpath","expr":"$.fruit[?(@.price.US==200)].name"},"predicate":{"type":"equal","value":"grape"}}]}}]}
diff --git a/integration/tests_ok/bytes.py b/integration/tests_ok/bytes.py
@@ -11,3 +11,13 @@ def bytes():
     resp = make_response(data)
     resp.content_type = "application/octet-stream"
     return resp
+
+
+@app.route("/empty_bytes")
+def empty_bytes():
+    result = BytesIO()
+    result.write(b"")
+    data = result.getvalue()
+    resp = make_response(data)
+    resp.content_type = "application/octet-stream"
+    return resp
diff --git a/integration/tests_ok/bytes_empty.html b/integration/tests_ok/bytes_empty.html
@@ -0,0 +1,7 @@
+<pre><code class="language-hurl"><span class="hurl-entry"><span class="request"><span class="line"><span class="method">GET</span> <span class="url">http://localhost:8000/empty_bytes</span></span>
+</span><span class="response"><span class="line"><span class="version">HTTP</span> <span class="number">200</span></span>
+<span class="line"><span class="string">Content-Type</span><span>:</span> <span class="string">application/octet-stream</span></span>
+<span class="line section-header">[Asserts]</span>
+<span class="line"><span class="query-type">bytes</span> <span class="predicate-type">isEmpty</span></span>
+<span class="line"><span class="query-type">bytes</span> <span class="filter-type">count</span> <span class="predicate-type">==</span> <span class="number">0</span></span>
+</span></span></code></pre>
diff --git a/integration/tests_ok/bytes_empty.hurl b/integration/tests_ok/bytes_empty.hurl
@@ -0,0 +1,6 @@
+GET http://localhost:8000/empty_bytes
+HTTP 200
+Content-Type: application/octet-stream
+[Asserts]
+bytes isEmpty
+bytes count == 0
diff --git a/integration/tests_ok/bytes_empty.json b/integration/tests_ok/bytes_empty.json
@@ -0,0 +1 @@
+{"entries":[{"request":{"method":"GET","url":"http://localhost:8000/empty_bytes"},"response":{"status":200,"headers":[{"name":"Content-Type","value":"application/octet-stream"}],"asserts":[{"query":{"type":"bytes"},"predicate":{"type":"isEmpty"}},{"query":{"type":"bytes"},"filters":[{"type":"count"}],"predicate":{"type":"equal","value":0}}]}}]}
diff --git a/packages/hurl/src/runner/predicate.rs b/packages/hurl/src/runner/predicate.rs
@@ -230,6 +230,7 @@ fn expected(
         PredicateFuncValue::IsString {} => Ok("string".to_string()),
         PredicateFuncValue::IsCollection {} => Ok("collection".to_string()),
         PredicateFuncValue::Exist {} => Ok("something".to_string()),
+        PredicateFuncValue::IsEmpty {} => Ok("empty".to_string()),
     }
 }
 
@@ -495,6 +496,40 @@ fn eval_something(
                 type_mismatch: false,
             }),
         },
+
+        // empty
+        PredicateFuncValue::IsEmpty {} => match value {
+            Value::List(values) => Ok(AssertResult {
+                success: values.len() as i64 == 0,
+                actual: values.len().to_string(),
+                expected: 0.to_string(),
+                type_mismatch: false,
+            }),
+            Value::String(data) => Ok(AssertResult {
+                success: data.len() as i64 == 0,
+                actual: data.len().to_string(),
+                expected: 0.to_string(),
+                type_mismatch: false,
+            }),
+            Value::Nodeset(nodeset) => Ok(AssertResult {
+                success: *nodeset as i64 == 0,
+                actual: nodeset.to_string(),
+                expected: 0.to_string(),
+                type_mismatch: false,
+            }),
+            Value::Bytes(data) => Ok(AssertResult {
+                success: data.len() as i64 == 0,
+                actual: data.len().to_string(),
+                expected: 0.to_string(),
+                type_mismatch: false,
+            }),
+            _ => Ok(AssertResult {
+                success: false,
+                actual: value.display(),
+                expected: "count equals to 0".to_string(),
+                type_mismatch: true,
+            }),
+        },
         _ => panic!(),
     }
 }
@@ -1463,6 +1498,44 @@ mod tests {
         assert_eq!(assert_result.expected.as_str(), "1");
     }
 
+    #[test]
+    fn test_predicate_is_empty_are_false() {
+        let variables = HashMap::new();
+        let assert_result = eval_something(
+            &PredicateFunc {
+                value: PredicateFuncValue::IsEmpty {},
+                source_info: SourceInfo::new(0, 0, 0, 0),
+            },
+            &variables,
+            &Value::List(vec![Value::Integer(1)]),
+        )
+        .unwrap();
+
+        assert!(!assert_result.success);
+        assert!(!assert_result.type_mismatch);
+        assert_eq!(assert_result.actual.as_str(), "1");
+        assert_eq!(assert_result.expected.as_str(), "0");
+    }
+
+    #[test]
+    fn test_predicate_is_empty_are_true() {
+        let variables = HashMap::new();
+        let assert_result = eval_something(
+            &PredicateFunc {
+                value: PredicateFuncValue::IsEmpty {},
+                source_info: SourceInfo::new(0, 0, 0, 0),
+            },
+            &variables,
+            &Value::List(vec![]),
+        )
+        .unwrap();
+
+        assert!(assert_result.success);
+        assert!(!assert_result.type_mismatch);
+        assert_eq!(assert_result.actual.as_str(), "0");
+        assert_eq!(assert_result.expected.as_str(), "0");
+    }
+
     #[test]
     fn test_predicate_count_equals() {
         let variables = HashMap::new();

diff --git a/packages/hurl_core/src/ast/core.rs b/packages/hurl_core/src/ast/core.rs
@@ -494,6 +494,7 @@ pub enum PredicateFuncValue {
     IsString {},
     IsCollection {},
     Exist {},
+    IsEmpty {},
 }
 
 //

diff --git a/packages/hurl_core/src/ast/display.rs b/packages/hurl_core/src/ast/display.rs
@@ -233,6 +233,7 @@ impl PredicateFuncValue {
             PredicateFuncValue::IsString { .. } => "isString".to_string(),
             PredicateFuncValue::IsCollection { .. } => "isCollection".to_string(),
             PredicateFuncValue::Exist { .. } => "exists".to_string(),
+            PredicateFuncValue::IsEmpty { .. } => "isEmpty".to_string(),
         }
     }
 }

diff --git a/packages/hurl_core/src/format/html.rs b/packages/hurl_core/src/format/html.rs
@@ -881,6 +881,11 @@ impl Htmlable for PredicateFuncValue {
                     format!("<span class=\"predicate-type\">{}</span>", self.name()).as_str(),
                 );
             }
+            PredicateFuncValue::IsEmpty {} => {
+                buffer.push_str(
+                    format!("<span class=\"predicate-type\">{}</span>", self.name()).as_str(),
+                );
+            }
         }
         buffer
     }
Original file line number	Diff line number	Diff line change
		@@ -1 +1 @@
		{"entries":[{"request":{"method":"GET","url":"http://localhost:8000/error-assert-xpath"},"response":{"status":200,"asserts":[{"query":{"type":"xpath","expr":"strong(//head/title)"},"predicate":{"type":"equal","value":"Welcome to Quiz!"}}]}}]}
		{"entries":[{"request":{"method":"GET","url":"http://localhost:8000/error-assert-xpath"},"response":{"status":200,"asserts":[{"query":{"type":"xpath","expr":"strong(//head/title)"},"predicate":{"type":"equal","value":"Welcome to Quiz!"}},{"query":{"type":"xpath","expr":"strong(//head/title)"},"predicate":{"type":"isEmpty"}}]}}]}
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		{"entries":[{"request":{"method":"GET","url":"http://localhost:8000/empty_bytes"},"response":{"status":200,"headers":[{"name":"Content-Type","value":"application/octet-stream"}],"asserts":[{"query":{"type":"bytes"},"predicate":{"type":"isEmpty"}},{"query":{"type":"bytes"},"filters":[{"type":"count"}],"predicate":{"type":"equal","value":0}}]}}]}