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GetDescription_test.go
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package katsuragi
import (
"testing"
)
func TestGetDescription(t *testing.T) {
tests := []struct {
name string
url string
mockupServerNeed bool
responseBody string
expectedErr string
expectedRes string
}{
{
name: "Invalid URL: No scheme",
url: "255.255.255.0",
mockupServerNeed: false,
responseBody: "",
expectedErr: "Get \"255.255.255.0\": unsupported protocol scheme \"\"",
expectedRes: "",
},
{
name: "Invalid URL: Empty",
url: "",
mockupServerNeed: false,
responseBody: "",
expectedErr: "Get \"\": unsupported protocol scheme \"\"",
expectedRes: "",
},
{
name: "No description tags",
url: "",
mockupServerNeed: true,
responseBody: `
<!DOCTYPE html>
<html>
<head>
</head>
<body>
</body>
</html>
`,
expectedErr: "GetDescription failed to find description in HTML",
expectedRes: "",
},
{
name: "Meta [name=description] tag",
url: "",
mockupServerNeed: true,
responseBody: `
<!DOCTYPE html>
<html>
<head>
<meta name="description" content="Example Description">
</head>
<body>
</body>
</html>
`,
expectedErr: "",
expectedRes: "Example Description",
},
{
name: "Meta [property=og:description] tag",
url: "",
mockupServerNeed: true,
responseBody: `
<!DOCTYPE html>
<html>
<head>
<meta property="og:description" content="Example Description">
</head>
<body>
</body>
</html>
`,
expectedErr: "",
expectedRes: "Example Description",
},
{
name: "Meta [name=twitter:description] tag",
url: "",
mockupServerNeed: true,
responseBody: `
<!DOCTYPE html>
<html>
<head>
<meta name="twitter:description" content="Example Description">
</head>
<body>
</body>
</html>
`,
expectedErr: "",
expectedRes: "Example Description",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var result string
var err error
f := NewFetcher(&FetcherProps{Timeout: 3000, CacheCap: 10})
defer f.ClearCache()
mockServer := MockServer(t, tt.responseBody)
defer mockServer.Close()
if tt.mockupServerNeed {
result, err = f.GetDescription(mockServer.URL)
} else {
result, err = f.GetDescription(tt.url)
}
// error validation
if tt.expectedErr == "" && err != nil {
t.Fatalf("Expected no error, got: %v", err)
}
if tt.expectedErr != "" && err == nil {
t.Fatalf("Expected error, got none")
}
if tt.expectedErr != "" && err.Error() != tt.expectedErr {
t.Fatalf("Expected error %q, got %q", tt.expectedErr, err.Error())
}
// result validation
if result != tt.expectedRes {
t.Fatalf("Expected result `%s`, got %s", tt.expectedRes, result)
}
})
}
}