Henry
8779c88d79
Co-authored-by: nova28 <17953305+nova28@users.noreply.github.com> Co-authored-by: Carlos Florencio <carlosmflorencio@gmail.com>
40 lines
1.6 KiB
Go
40 lines
1.6 KiB
Go
package webapp
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import "testing"
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func TestPrefersHTML(t *testing.T) {
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cases := []struct {
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name string
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header string
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want bool
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}{
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{"empty header stays JSON", "", false},
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{"json preferred over html stays JSON", "application/json;q=1, text/html;q=0.1", false},
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{"equal quality stays JSON", "text/html;q=0.5, application/json;q=0.5", false},
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{"bare wildcard stays JSON", "*/*", false},
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{"html only prefers HTML", "text/html", true},
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{"typical browser navigation header prefers HTML", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", true},
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{"specific html wildcard loses to a higher-quality catch-all", "text/*;q=0.9,*/*;q=1.0", false},
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{"exact match beats type wildcard even at lower q", "text/html;q=0.6,text/*;q=0.9", true},
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{"malformed q value ignored", "text/html;q=bogus", false},
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{"malformed media type ignored", "not-a-media-type;q=1", false},
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{"json wildcard beats html when html unlisted", "application/*;q=1", false},
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{"zero quality html excluded", "text/html;q=0", false},
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{
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"explicit q=0 exclusion beats a higher-quality wildcard",
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"text/html;q=0.5, application/json;q=0, */*;q=1",
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true,
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},
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{"malformed q with trailing garbage ignored", "text/html;q=.5junk", false},
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{"out-of-range q ignored, does not leak wildcard quality", "text/html;q=2, */*;q=0.5", false},
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{"uppercase Q parameter name is honored", "text/html;Q=0.9", true},
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}
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for _, tc := range cases {
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t.Run(tc.name, func(t *testing.T) {
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if got := PrefersHTML(tc.header); got != tc.want {
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t.Fatalf("PrefersHTML(%q) = %v, want %v", tc.header, got, tc.want)
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}
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})
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}
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}
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