diff --git a/tests/common/mod.rs b/tests/common/mod.rs
new file mode 100644
index 0000000..8092b7d
--- /dev/null
+++ b/tests/common/mod.rs
@@ -0,0 +1,12 @@
+use std::{
+    fs::read_to_string,
+    path::{Path, PathBuf},
+};
+
+pub fn sample_data_path() -> PathBuf {
+    PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("tests/common/sample_data")
+}
+
+pub fn read_sample_file(path: &Path) -> String {
+    return read_to_string(sample_data_path().join(path)).ok().unwrap();
+}
diff --git a/tests/common/sample_data/codecov-rs-reports-json-d2a9ba1.txt b/tests/common/sample_data/codecov-rs-reports-json-d2a9ba1.txt
new file mode 100644
index 0000000..e34af8b
--- /dev/null
+++ b/tests/common/sample_data/codecov-rs-reports-json-d2a9ba1.txt
@@ -0,0 +1 @@
+{"files": {"src/report.rs": [0, [0, 45, 45, 0, 0, "100", 0, 0, 0, 0, 0, 0, 0], {"0": [0, 45, 45, 0, 0, "100"], "meta": {"session_count": 1}}, null], "src/report/models.rs": [1, [0, 5, 1, 4, 0, "20.00000", 0, 0, 0, 0, 0, 0, 0], {"0": [0, 5, 1, 4, 0, "20.00000"], "meta": {"session_count": 1}}, null], "src/report/schema.rs": [2, [0, 44, 6, 38, 0, "13.63636", 0, 0, 0, 0, 0, 0, 0], {"0": [0, 44, 6, 38, 0, "13.63636"], "meta": {"session_count": 1}}, null]}, "sessions": {"0": {"t": [3, 94, 52, 42, 0, "55.31915", 0, 0, 0, 0, 0, 0, 0], "d": 1704827412, "a": "v4/raw/2024-01-09/BD18D96000B80FA280C411B0081460E1/d2a9ba133c9b30468d97e7fad1462728571ad699/065067fe-7677-4bd8-93b2-0a8d0b879f78/340c0c0b-a955-46a0-9de9-3a9b5f2e81e2.txt", "f": [], "c": null, "n": null, "N": null, "j": "codecov-rs CI", "u": "https://github.com/codecov/codecov-rs/actions/runs/7465738121", "p": null, "e": null, "st": "uploaded", "se": {}}}}
\ No newline at end of file
diff --git a/tests/test_pyreport_shim.rs b/tests/test_pyreport_shim.rs
new file mode 100644
index 0000000..ed8a676
--- /dev/null
+++ b/tests/test_pyreport_shim.rs
@@ -0,0 +1,80 @@
+use std::{collections::HashMap, path::Path};
+
+use codecov_rs::{
+    parsers::{pyreport_shim::parse_report_json, ParseCtx, ReportOutputStream},
+    report::{models, Report, ReportBuilder, SqliteReport, SqliteReportBuilder},
+};
+use tempfile::TempDir;
+use winnow::Parser;
+
+mod common;
+
+type SqliteStream<'a> = ReportOutputStream<&'a str, SqliteReport, SqliteReportBuilder>;
+
+struct Ctx {
+    _temp_dir: TempDir,
+    parse_ctx: ParseCtx<SqliteReport, SqliteReportBuilder>,
+}
+
+fn setup() -> Ctx {
+    let temp_dir = TempDir::new().ok().unwrap();
+    let db_file = temp_dir.path().to_owned().join("db.sqlite");
+
+    let report_builder = SqliteReportBuilder::new(db_file);
+    let parse_ctx = ParseCtx::new(report_builder);
+
+    Ctx {
+        _temp_dir: temp_dir,
+        parse_ctx,
+    }
+}
+
+#[test]
+fn test_parse_report_json() {
+    let input = common::read_sample_file(Path::new("codecov-rs-reports-json-d2a9ba1.txt"));
+
+    let ctx = setup();
+    let mut buf = SqliteStream {
+        input: &input,
+        state: ctx.parse_ctx,
+    };
+
+    let expected_files = HashMap::from([(0, 1), (1, 2), (2, 3)]);
+    let expected_sessions = HashMap::from([(0, 1)]);
+
+    assert_eq!(
+        parse_report_json.parse_next(&mut buf),
+        Ok((expected_files, expected_sessions))
+    );
+
+    let report = buf.state.report_builder.build();
+
+    let files = report.list_files().unwrap();
+    assert_eq!(
+        files,
+        vec![
+            models::SourceFile {
+                id: Some(1),
+                path: "src/report.rs".to_string(),
+            },
+            models::SourceFile {
+                id: Some(2),
+                path: "src/report/models.rs".to_string(),
+            },
+            models::SourceFile {
+                id: Some(3),
+                path: "src/report/schema.rs".to_string(),
+            },
+        ]
+    );
+
+    let contexts = report.list_contexts().unwrap();
+    assert_eq!(
+        contexts,
+        vec![models::Context {
+            id: Some(1),
+            context_type: models::ContextType::Upload,
+            name: "codecov-rs CI".to_string(),
+        },]
+    );
+}