fix(pact_verifier_cli): strip ANSI escapes from JUnit output

When coloured output is enabled, output strings contain ANSI escapes,
sequences of binary data that communicate with a terminal to control
colours. Remove these sequences when producing a JUnit report, because
the ESC bytecode (0x1B) is not a valid codepoint in XML documents.

rust/pact_verifier_cli/Cargo.toml

@@ -18,8 +18,8 @@ default = ["datetime", "xml", "plugins", "multipart", "junit"]
 datetime = ["pact_models/datetime", "pact_verifier/datetime"] # Support for date/time matchers and expressions
 xml = ["pact_models/xml", "pact_verifier/xml"] # support for matching XML documents
 plugins = ["pact_verifier/plugins"]
-multipart = ["pact_verifier/multipart"] # suport for MIME multipart bodies
-junit = ["dep:junit-report"] # suport for MIME multipart bodies
+multipart = ["pact_verifier/multipart"] # support for MIME multipart bodies
+junit = ["dep:junit-report", "dep:strip-ansi-escapes"] # support for Junit format reports
 
 [dependencies]
 ansi_term = "0.12.1"
@@ -34,6 +34,7 @@ pact_verifier = { version = "~1.2.1", path = "../pact_verifier", default-feature
 regex = "1.10.2"
 reqwest = { version = "0.12.4", default-features = false, features = ["rustls-tls-native-roots", "blocking", "json"] }
 serde_json = "1.0.108"
+strip-ansi-escapes = { version = "0.2.0", optional = true }
 time = "0.3.31"
 tokio = { version = "1.35.1", features = ["full"] }
 tracing = "0.1.40"

rust/pact_verifier_cli/src/reports.rs

@@ -2,6 +2,7 @@ use std::fs::File;
 use std::io::Write;
 
 #[cfg(feature = "junit")] use junit_report::{ReportBuilder, TestCaseBuilder, TestSuiteBuilder};
+#[cfg(feature = "junit")] use strip_ansi_escapes;
 use serde_json::Value;
 use tracing::debug;
 
@@ -22,7 +23,8 @@ pub(crate) fn write_junit_report(result: &VerificationExecutionResult, file_name
   let mut f = File::create(file_name)?;
 
   let mut test_suite = TestSuiteBuilder::new(provider);
-  test_suite.set_system_out(result.output.join("\n").as_str());
+  let stripped_system_out = strip_ansi_escapes::strip_str(result.output.join("\n"));
+  test_suite.set_system_out(&stripped_system_out);
   for interaction_result in &result.interaction_results {
     let duration = time::Duration::try_from(interaction_result.duration).unwrap_or_default();
     let test_case = match &interaction_result.result {
@@ -42,7 +44,8 @@ pub(crate) fn write_junit_report(result: &VerificationExecutionResult, file_name
                 "",
                 "Verification for interaction failed"
               );
-              builder.set_system_out(output_buffer.join("\n").as_str());
+              let stripped_output = strip_ansi_escapes::strip_str(output_buffer.join("\n"));
+              builder.set_system_out(&stripped_output);
               builder
             },
             MismatchResult::Error(error, _) => TestCaseBuilder::error(