fix: go runner with vendor folder

go-runner/src/builder/mod.rs

@@ -105,6 +105,7 @@ pub fn build_binary<P: AsRef<Path>>(runner_go_path: P) -> anyhow::Result<std::pa
 
     let args = vec![
         "build",
+        "-mod=mod",
         "-tags=codspeed",
         "-ldflags",
         &ldflags,

go-runner/src/integration_tests.rs

@@ -78,6 +78,7 @@ fn assert_results_snapshots(profile_dir: &Path, project_name: &str) {
 #[case::example_with_helper("example-with-helper")]
 #[case::example_with_main("example-with-main")]
 #[case::example_with_dot_go_folder("example-with-dot-go-folder")]
+#[case::example_with_vendor("example-with-vendor")]
 #[test_log::test]
 fn test_build_and_run(#[case] project_name: &str) {
     let project_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"))

go-runner/src/snapshots/codspeed_go_runner__integration_tests__assert_results_snapshots@example-with-vendor.snap

@@ -0,0 +1,40 @@
+---
+source: go-runner/src/integration_tests.rs
+expression: results
+---
+[
+  {
+    "creator": {
+      "name": "codspeed-go",
+      "version": "[version]",
+      "pid": "[pid]"
+    },
+    "instrument": {
+      "type": "walltime"
+    },
+    "benchmarks": [
+      {
+        "name": "BenchmarkAddWithAssert",
+        "uri": "go-runner/testdata/projects/example-with-vendor/main_test.go::BenchmarkAddWithAssert",
+        "config": {
+          "warmup_time_ns": null,
+          "min_round_time_ns": null,
+          "max_time_ns": null,
+          "max_rounds": null
+        },
+        "stats": "[stats]"
+      },
+      {
+        "name": "BenchmarkLocalFib",
+        "uri": "go-runner/testdata/projects/example-with-vendor/main_test.go::BenchmarkLocalFib",
+        "config": {
+          "warmup_time_ns": null,
+          "min_round_time_ns": null,
+          "max_time_ns": null,
+          "max_rounds": null
+        },
+        "stats": "[stats]"
+      }
+    ]
+  }
+]

go-runner/testdata/projects/example-with-vendor/go.mod

@@ -0,0 +1,11 @@
+module example-with-vendor
+
+go 1.24.5
+
+require github.com/stretchr/testify v1.10.0
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go-runner/testdata/projects/example-with-vendor/go.sum

@@ -0,0 +1,10 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
+github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

go-runner/testdata/projects/example-with-vendor/main.go

@@ -0,0 +1,14 @@
+package examplewithvendor
+
+// LocalFib is a local implementation of Fibonacci
+func LocalFib(n int) int {
+	if n <= 1 {
+		return n
+	}
+	return LocalFib(n-1) + LocalFib(n-2)
+}
+
+// Add is a simple addition function to use with testify assertions
+func Add(a, b int) int {
+	return a + b
+}

go-runner/testdata/projects/example-with-vendor/main_test.go

@@ -0,0 +1,27 @@
+package examplewithvendor
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+// TestAdd demonstrates using testify assert (vendored dependency)
+func TestAdd(t *testing.T) {
+	assert.Equal(t, 5, Add(2, 3))
+}
+
+// BenchmarkLocalFib should be executed
+func BenchmarkLocalFib(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		LocalFib(10)
+	}
+}
+
+// BenchmarkAddWithAssert uses testify assert in a benchmark
+func BenchmarkAddWithAssert(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		result := Add(2, 3)
+		assert.Equal(b, 5, result)
+	}
+}