From f2eee6b3351e8cecbbd53e27c4f690a78b9ec2a2 Mon Sep 17 00:00:00 2001
From: Kevin Ding <quic_likaid@quicinc.com>
Date: Mon, 24 Feb 2025 10:23:57 +0800
Subject: pkg/cover: allow paths to be excluded from stats

Some sub paths may not be covered due to hardware configuration, or lack
of interest. This patch allows them to be excluded from the stats. This
can be convenient if the excluded paths are deep in the hierarchy:

{
    "name": "sound",
    "path": [
	"techpack/audio",
	"-techpack/audio/asoc/aaa/bbb"
	"-techpack/audio/asoc/aaa/ccc"
    ]
}
---
 pkg/cover/report_test.go | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

(limited to 'pkg/cover/report_test.go')

diff --git a/pkg/cover/report_test.go b/pkg/cover/report_test.go
index 8f27590e9..8c86049f1 100644
--- a/pkg/cover/report_test.go
+++ b/pkg/cover/report_test.go
@@ -459,3 +459,46 @@ var sampleJSONLlProgs = []byte(`{
 		}
 	]
 }`)
+
+func makeFileStat(name string) fileStats {
+	return fileStats{
+		Name:                       name,
+		CoveredLines:               1,
+		TotalLines:                 8,
+		CoveredPCs:                 1,
+		TotalPCs:                   4,
+		TotalFunctions:             2,
+		CoveredFunctions:           1,
+		CoveredPCsInFunctions:      1,
+		TotalPCsInCoveredFunctions: 2,
+		TotalPCsInFunctions:        2,
+	}
+}
+
+func TestCoverByFilePrefixes(t *testing.T) {
+	datas := []fileStats{
+		makeFileStat("a"),
+		makeFileStat("a/1"),
+		makeFileStat("a/2"),
+		makeFileStat("a/2/A"),
+		makeFileStat("a/3"),
+	}
+	subsystems := []mgrconfig.Subsystem{
+		{
+			Name: "test",
+			Paths: []string{
+				"a",
+				"-a/2",
+			},
+		},
+	}
+	d := groupCoverByFilePrefixes(datas, subsystems)
+	assert.Equal(t, d["test"], map[string]string{
+		"name":              "test",
+		"lines":             "3 / 24 / 12.50%",
+		"PCsInFiles":        "3 / 12 / 25.00%",
+		"Funcs":             "3 / 6 / 50.00%",
+		"PCsInFuncs":        "3 / 6 / 50.00%",
+		"PCsInCoveredFuncs": "3 / 6 / 50.00%",
+	})
+}
-- 
cgit mrf-deployment