01fe30f02a
* fix a bug where function return instruction is missing with if statement * remove script cancel context test
68 lines
2.4 KiB
Go
68 lines
2.4 KiB
Go
package runtime_test
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import (
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"testing"
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"github.com/d5/tengo/objects"
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)
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func TestIf(t *testing.T) {
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expect(t, `if (true) { out = 10 }`, nil, 10)
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expect(t, `if (false) { out = 10 }`, nil, objects.UndefinedValue)
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expect(t, `if (false) { out = 10 } else { out = 20 }`, nil, 20)
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expect(t, `if (1) { out = 10 }`, nil, 10)
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expect(t, `if (0) { out = 10 } else { out = 20 }`, nil, 20)
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expect(t, `if (1 < 2) { out = 10 }`, nil, 10)
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expect(t, `if (1 > 2) { out = 10 }`, nil, objects.UndefinedValue)
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expect(t, `if (1 < 2) { out = 10 } else { out = 20 }`, nil, 10)
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expect(t, `if (1 > 2) { out = 10 } else { out = 20 }`, nil, 20)
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expect(t, `if (1 < 2) { out = 10 } else if (1 > 2) { out = 20 } else { out = 30 }`, nil, 10)
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expect(t, `if (1 > 2) { out = 10 } else if (1 < 2) { out = 20 } else { out = 30 }`, nil, 20)
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expect(t, `if (1 > 2) { out = 10 } else if (1 == 2) { out = 20 } else { out = 30 }`, nil, 30)
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expect(t, `if (1 > 2) { out = 10 } else if (1 == 2) { out = 20 } else if (1 < 2) { out = 30 } else { out = 40 }`, nil, 30)
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expect(t, `if (1 > 2) { out = 10 } else if (1 < 2) { out = 20; out = 21; out = 22 } else { out = 30 }`, nil, 22)
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expect(t, `if (1 > 2) { out = 10 } else if (1 == 2) { out = 20 } else { out = 30; out = 31; out = 32}`, nil, 32)
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expect(t, `if (1 > 2) { out = 10 } else if (1 < 2) { if (1 == 2) { out = 21 } else { out = 22 } } else { out = 30 }`, nil, 22)
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expect(t, `if (1 > 2) { out = 10 } else if (1 < 2) { if (1 == 2) { out = 21 } else if (2 == 3) { out = 22 } else { out = 23 } } else { out = 30 }`, nil, 23)
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expect(t, `if (1 > 2) { out = 10 } else if (1 == 2) { if (1 == 2) { out = 21 } else if (2 == 3) { out = 22 } else { out = 23 } } else { out = 30 }`, nil, 30)
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expect(t, `if (1 > 2) { out = 10 } else if (1 == 2) { out = 20 } else { if (1 == 2) { out = 31 } else if (2 == 3) { out = 32 } else { out = 33 } }`, nil, 33)
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expect(t, `if a:=0; a<1 { out = 10 }`, nil, 10)
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expect(t, `a:=0; if a++; a==1 { out = 10 }`, nil, 10)
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expect(t, `
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func() {
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a := 1
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if a++; a > 1 {
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out = a
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}
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}()
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`, nil, 2)
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expect(t, `
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func() {
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a := 1
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if a++; a == 1 {
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out = 10
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} else {
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out = 20
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}
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}()
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`, nil, 20)
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expect(t, `
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func() {
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a := 1
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func() {
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if a++; a > 1 {
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a++
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}
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}()
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out = a
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}()
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`, nil, 3)
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// expression statement in init (should not leave objects on stack)
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expect(t, `a := 1; if a; a { out = a }`, nil, 1)
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expect(t, `a := 1; if a + 4; a { out = a }`, nil, 1)
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}
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