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| 1 | +import "jasmine"; |
| 2 | + |
| 3 | +import { getSdpTransform } from "../../../src/Components/Video/utils"; |
| 4 | + |
| 5 | +describe("getSdpTransform()", () => { |
| 6 | + it("should not do anything if bandwidth = 0", () => { |
| 7 | + const bw = 0; |
| 8 | + const originalSdp = ` |
| 9 | + m=audio |
| 10 | + c=IN IP4 0.0.0.0 |
| 11 | + b=AS:11 |
| 12 | + m=video |
| 13 | + c=IN IP4 0.0.0.0 |
| 14 | + m=video |
| 15 | + c=IN IP4 0.0.0.0 |
| 16 | + b=AS:22 |
| 17 | + m=application |
| 18 | + c=IN IP4 0.0.0.0 |
| 19 | + b=AS:33`.replace(/^[\s]*/gm, ""); |
| 20 | + |
| 21 | + const modifiedSdp = getSdpTransform(bw)(originalSdp); |
| 22 | + expect(modifiedSdp).toEqual(originalSdp); |
| 23 | + }); |
| 24 | + |
| 25 | + it("should create the 'b' field of the video media if it doesn't exist", () => { |
| 26 | + const bw = 55; |
| 27 | + const originalSdp = ` |
| 28 | + m=audio |
| 29 | + c=IN IP4 0.0.0.0 |
| 30 | + m=video |
| 31 | + c=IN IP4 0.0.0.0 |
| 32 | + m=video |
| 33 | + c=IN IP4 0.0.0.0 |
| 34 | + m=application |
| 35 | + c=IN IP4 0.0.0.0`.replace(/^[\s]*/gm, ""); |
| 36 | + |
| 37 | + const modifiedSdp = getSdpTransform(bw)(originalSdp); |
| 38 | + expect(modifiedSdp).toEqual(expectedDefaultSdp(bw)); |
| 39 | + }); |
| 40 | + |
| 41 | + it("should update the 'b' field of the video media if it already exists", () => { |
| 42 | + const bw = 66; |
| 43 | + const originalSdp = ` |
| 44 | + m=audio |
| 45 | + c=IN IP4 0.0.0.0 |
| 46 | + m=video |
| 47 | + c=IN IP4 0.0.0.0 |
| 48 | + b=AS:11 |
| 49 | + m=video |
| 50 | + c=IN IP4 0.0.0.0 |
| 51 | + b=AS:22 |
| 52 | + m=application |
| 53 | + c=IN IP4 0.0.0.0`.replace(/^[\s]*/gm, ""); |
| 54 | + |
| 55 | + const modifiedSdp = getSdpTransform(bw)(originalSdp); |
| 56 | + expect(modifiedSdp).toEqual(expectedDefaultSdp(bw)); |
| 57 | + }); |
| 58 | + |
| 59 | + it("should create and update the 'b' field of each video media if one doesn't exist and the other does", () => { |
| 60 | + const bw = 77; |
| 61 | + const originalSdp = ` |
| 62 | + m=audio |
| 63 | + c=IN IP4 0.0.0.0 |
| 64 | + m=video |
| 65 | + c=IN IP4 0.0.0.0 |
| 66 | + b=AS:11 |
| 67 | + m=video |
| 68 | + c=IN IP4 0.0.0.0 |
| 69 | + m=application |
| 70 | + c=IN IP4 0.0.0.0`.replace(/^[\s]*/gm, ""); |
| 71 | + |
| 72 | + const modifiedSdp = getSdpTransform(bw)(originalSdp); |
| 73 | + expect(modifiedSdp).toEqual(expectedDefaultSdp(bw)); |
| 74 | + }); |
| 75 | + |
| 76 | + it("should not change the 'b' field of other medias", () => { |
| 77 | + const bw = 88; |
| 78 | + const originalSdp = ` |
| 79 | + m=audio |
| 80 | + c=IN IP4 0.0.0.0 |
| 81 | + b=AS:11 |
| 82 | + m=video |
| 83 | + c=IN IP4 0.0.0.0 |
| 84 | + b=AS:22 |
| 85 | + m=video |
| 86 | + c=IN IP4 0.0.0.0 |
| 87 | + b=AS:33 |
| 88 | + m=application |
| 89 | + c=IN IP4 0.0.0.0 |
| 90 | + b=AS:44`.replace(/^[\s]*/gm, ""); |
| 91 | + |
| 92 | + const modifiedSdp = getSdpTransform(bw)(originalSdp); |
| 93 | + expect(modifiedSdp).toEqual(expectedFullBWSdp(bw)); |
| 94 | + }); |
| 95 | + |
| 96 | + // Expected sdp where the audio and application medias have no 'b' fields |
| 97 | + // and the video medias should have 'b=TIAS=:<bw*1000>' and 'b=AS:<bw>'. |
| 98 | + const expectedDefaultSdp = (bw: integer) => { |
| 99 | + return ` |
| 100 | + m=audio |
| 101 | + c=IN IP4 0.0.0.0 |
| 102 | + m=video |
| 103 | + c=IN IP4 0.0.0.0 |
| 104 | + b=TIAS:${bw * 1000} |
| 105 | + b=AS:${bw} |
| 106 | + m=video |
| 107 | + c=IN IP4 0.0.0.0 |
| 108 | + b=TIAS:${bw * 1000} |
| 109 | + b=AS:${bw} |
| 110 | + m=application |
| 111 | + c=IN IP4 0.0.0.0`.replace(/^[\s]*/gm, ""); |
| 112 | + }; |
| 113 | + |
| 114 | + // Expected sdp where the audio and application medias have a 'b' field |
| 115 | + // and the video medias should have 'b=TIAS=:<bw*1000>' and 'b=AS:<bw>'. |
| 116 | + const expectedFullBWSdp = (bw: integer) => { |
| 117 | + return ` |
| 118 | + m=audio |
| 119 | + c=IN IP4 0.0.0.0 |
| 120 | + b=AS:11 |
| 121 | + m=video |
| 122 | + c=IN IP4 0.0.0.0 |
| 123 | + b=TIAS:${bw * 1000} |
| 124 | + b=AS:${bw} |
| 125 | + m=video |
| 126 | + c=IN IP4 0.0.0.0 |
| 127 | + b=TIAS:${bw * 1000} |
| 128 | + b=AS:${bw} |
| 129 | + m=application |
| 130 | + c=IN IP4 0.0.0.0 |
| 131 | + b=AS:44`.replace(/^[\s]*/gm, ""); |
| 132 | + }; |
| 133 | +}); |
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